Sign In to Follow Application
View All Documents & Correspondence

Unequal Sized Robust Components

Abstract: [0001] The present disclosure provides an optical waveguide cable (100). The optical waveguide cable (100) is defined by a longitudinal axis (114) passing through a first geometrical center (116) of the optical waveguide cable (100). The optical waveguide cable (100) includes one or more optical waveguide band (102). Each of the one or more optical waveguide band (102) has a plurality of light transmission element (112). The optical waveguide cable (100) includes one or more layers (106) substantially centered on the longitudinal axis (114) of the optical waveguide cable (100). A first set of robust component (110a) is embedded in the outer jacket (108) of the optical fiber cable (100). A second set of robust component (110b) embedded in the outer jacket (108) of the optical waveguide cable (100). The second set of robust component (110b) is positioned substantially 180° apart from the first set of robust components (110a).

Get Free WhatsApp Updates!
Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
05 January 2018
Publication Number
28/2019
Publication Type
INA
Invention Field
PHYSICS
Status
Email
patent@ipmetrix.com
Parent Application
Patent Number
Legal Status
Grant Date
2024-04-30
Renewal Date

Applicants

STERLITE TECHNOLOGIES LIMITED
IFFCO Tower, 3rd Floor, Plot No.3, Sector 29, Gurgaon 122002, Haryana, India. Phone: +91-124-6146000 Fax: +91-124-6146060

Inventors

1. Kishore Chandra Sahoo
STERLITE TECHNOLOGIES LIMITED E2, E3, MIDC, Waluj Aurangabad 431 136, Maharashtra, INDIA
2. Sravan Kumar
STERLITE TECHNOLOGIES LIMITED E2, E3, MIDC, Waluj Aurangabad 431 136, Maharashtra, INDIA
3. Pavan Kumar Moturu
STERLITE TECHNOLOGIES LIMITED E2, E3, MIDC, Waluj Aurangabad 431 136, Maharashtra, INDIA
4. Atul Mishra
STERLITE TECHNOLOGIES LIMITED E2, E3, MIDC, Waluj Aurangabad 431 136, Maharashtra, INDIA
5. Kavya Chintada
STERLITE TECHNOLOGIES LIMITED E2, E3, MIDC, Waluj Aurangabad 431 136, Maharashtra, INDIA

Specification

[0001] The present disclosure relates to the field of optical waveguide
cable. More particularly, the present disclosure relates optical waveguide cable with unequal sized robust component.
BACKGROUND
[0002] Over the last few years, optical waveguide cables have been
increasingly employed for data transmission. Optical waveguide cables are deployed outdoor, indoor and indoor-outdoor. One such type of optical waveguide cables is a central one or more cylindrical enclosure type optical waveguide cable. The central one or more cylindrical enclosure type optical waveguide cable may include a number of optical waveguide bands inside a central one or more cylindrical enclosure. The central one or more cylindrical enclosure may or may not be filled with a water blocking gel. Further, the central one or more cylindrical enclosure type optical waveguide cable includes a protective jacket layer and other additional layers. Typically, the central one or more cylindrical enclosure type optical waveguide cable includes a number of rigid robust components embedded inside the protective jacket layer. The robust components may be made of fiber reinforced plastic. The robust components restrict shrinkage of the protective jacket layer during thermal cycling and provide tensile strength to the optical waveguide cable. The number of robust components may be two or four.

OBJECT OF THE DISCLOSURE
[0003] A primary object of the disclosure is to provide an optical
waveguide cable with unequal sized robust components.
[0004] Another object of the present disclosure is to provide the optical
waveguide cable with sets of robust component of different arrangement placed diametrically opposite to one another.
[0005] Yet another object of the present disclosure is to provide the
optical waveguide cable with improved stiffness and flexibility.
[0006] Yet another object of the present disclosure is to provide the
optical waveguide cable with environment robustness.
SUMMARY
[0007] In an aspect of the present disclosure, the present disclosure
provides an optical waveguide cable. The optical waveguide cable is defined by a longitudinal axis passing through a first geometrical center of the optical waveguide cable. The optical waveguide cable includes one or more optical waveguide band substantially along the longitudinal axis of the optical waveguide cable. Each of the one or more optical waveguide band has a plurality of light transmission element. The plurality of light transmission element is made of silicon glass. The optical waveguide cable includes one or more layers substantially

concentric to the longitudinal axis of the optical waveguide cable. The one or more layers of the optical waveguide cable surround the cylindrical enclosure. Each of the one or more layers is substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes a cylindrical enclosure substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes an outer jacket. The outer jacket circumferentially surrounds each of the one or more layers. The outer jacket is having has an outer circumference. A first set of robust components is embedded in the outer jacket. The first set of robust components is positioned at a first location. A second set of robust components embedded in the outer jacket. The second set of robust components is positioned substantially 180° apart from the first set of robust components. The first set of robust components and the second set of robust components are parallel to a first virtual plane and the longitudinal axis. The first virtual plane passes through the longitudinal axis. The first virtual plane is oriented such that the first set of robust components and the second set of robust components are -90 degree apart. Each robust component of the first set of robust components and the second set of robust components are of unequal sizes. The first set of robust components and the second set of robust components have atleast two robust components. The ratio of total area of two or more robust component to the total area of the cylindrical enclosure being in the range of 0.392 and 0.503.
[0008] In an embodiment of the present disclosure, each of the atleast
two robust components in the first set of robust components and the

second set of robust components being positioned at least 0.1 millimeters apart from one another.
[0009] In an embodiment of the present disclosure, the optical
waveguide cable comprises of atleast one water inhibiting strip. The atleast one water inhibiting strip extends substantially along the longitudinal axis of the optical waveguide cable.
[0010] In an embodiment of the present disclosure, the cylindrical
enclosure circumferentially surrounds atleast one water inhibiting strip.
[0011] In an embodiment of the present disclosure, atleast one water
inhibiting strip circumferentially surrounds the cylindrical enclosure.
[0012] In an embodiment of the present disclosure, each of the atleast
two robust components in the first set of robust components and the second set of robust components being positioned at most 0.4 millimeters apart from one another.
[0013] In an embodiment of the present disclosure, each of the one or
more layers is made of a material selected from a group. The group includes a fire resistant material, a water swellable tape, an ECCS armor, a glass roving yarn, a binder yarn and an aramid yarn.
[0014] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components is of fiber reinforced plastic.

[0015] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components are of unequal size.
[0016] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components being positioned at least 0.3 millimeters apart from the circumference of the optical waveguide cable.
[0017] In an embodiment of the present disclosure, the center of each
of the two or more robust components in the first set of robust components and the second set of robust components being equidistant from the longitudinal axis of the optical waveguide cable.
[0018] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components have a size in a range of 1.4 millimeters to 1.8 millimeters.
[0019] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components being coated with a layer of ethylene acrylic acid.
[0020] In an embodiment of the present disclosure, the layer of
ethylene acrylic acid has a thickness of 20-25 microns.

[0021] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components has a tensile modulus of 52 GPa.
[0022] In an embodiment of the present disclosure, the cylindrical
enclosure is filled with a thixotropic gel.
[0023] In an embodiment of the present disclosure, each of the two or
more robust components in the first set of robust components and the second set of robust components has a tensile strength of atleast 3000 N at 0.6% waveguide strain.
STATEMENT OF DISCLOSURE
[0024] In an aspect of the present disclosure, the present disclosure
provides an optical waveguide cable. The optical waveguide cable is defined by a longitudinal axis passing through a first geometrical center of the optical waveguide cable. The optical waveguide cable includes one or more optical waveguide band substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes an outer jacket. The outer jacket circumferentially surrounds each of the one or more layers. The outer jacket is having has an outer circumference. Each of the one or more optical waveguide band has a plurality of light transmission element. The plurality of light transmission element is made of silicon glass. The optical waveguide cable includes one or more layers substantially concentric to the

longitudinal axis of the optical waveguide cable. The one or more layers of the optical waveguide cable surround the one or more optical waveguide band. Each of the one or more layers is substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes a cylindrical enclosure substantially along the longitudinal axis of the optical waveguide cable. A first set of robust components is embedded in the outer jacket. The first set of robust components is positioned at a first location. A second set of robust components embedded in the outer jacket. The second set of robust components is positioned substantially 180° apart from the first set of robust components. The first set of robust components and the second set of robust components are parallel to a first virtual plane and the longitudinal axis. The first virtual plane passes through the longitudinal axis. The first virtual plane is oriented such that the first set of robust components and the second set of robust components are -90 degree apart. Each robust component of the first set of robust components and the second set of robust components are of unequal sizes. The first set of robust components and the second set of robust components have atleast two robust components. The ratio of total area of two or more robust component to the total area of the cylindrical enclosure being in the range of 0.392 and 0.503.

BRIEF DESCRIPTION OF FIGURES
[0025] Having thus described the disclosure, in general, terms,
reference will now be made to the accompanying figures, wherein:
[0026] FIG. 1A illustrates a cross sectional view of an optical
waveguide cable, in accordance with an embodiment of the present disclosure.
[0027] FIG. 1B illustrates a cross sectional view of an optical
waveguide cable, in accordance with another embodiment of the present disclosure.
[0028] FIG. 1C illustrates a cross sectional view of an optical
waveguide cable, in accordance with yet another embodiment of the present disclosure.
[0029] It should be noted that the accompanying figures are intended
to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.
9 / 34

DETAILED DESCRIPTION
[0030] Reference will now be made in detail to selected embodiments
of the present disclosure in conjunction with accompanying figures. The embodiments described herein are not intended to limit the scope of the disclosure, and the present disclosure should not be construed as limited to the embodiments described. This disclosure may be embodied in different forms without departing from the scope and spirit of the disclosure. It should be understood that the accompanying figures are intended and provided to illustrate embodiments of the disclosure described below and are not necessarily drawn to scale. In the drawings, like numbers refer to like elements throughout, and thicknesses and dimensions of some components may be exaggerated for providing better clarity and ease of understanding.
[0031] It should be noted that the terms "first", "second", and the like,
herein do not denote any order, ranking, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
[0032] FIG. 1A, FIG. 1B and FIG. 1C illustrates a cross sectional view of an optical waveguide cable 100, in accordance with an embodiment of the present disclosure. In general, the optical waveguide cable 100 is a network cable that contains strands or array of glass
10 / 34

waveguides inside an insulated casing. The glass waveguides are used to carry optical signals. The insulated casing facilitates to protect the waveguides from heat, cold, external interference from other types of wiring. The insulated casing provides protection to the optical waveguide cable 100 from ultraviolet rays of sun. The optical waveguide cable 100 is designed for long distance transmission of optical signal. The optical waveguide cable 100 enables very high speed data transmission. The optical waveguide cable 100 transmits data at a higher speed than copper data cable, as the optical waveguide cable 100 have much higher band width.
[0033] The optical waveguide cable 100 is used for a wide variety of applications. The wide variety of applications includes high speed internet, data transmission, optical sensor, intercommunication, optical circuit installations and the like. The optical waveguide cable 100 is very less susceptible to interference. The optical waveguide cable 100 is associated with a longitudinal axis 114. The longitudinal axis 114 of the optical waveguide cable 100 passes through a first geometrical center 116 of the optical waveguide cable 100. The first geometrical center 116 is center of the cross section of the optical waveguide cable 100. The optical waveguide cable 100 is a single mode optical waveguide cable. In an embodiment of the present disclosure, the optical waveguide cable 100 is a multimode optical waveguide cable. In general, the optical waveguide cable 100 is used for installation in ducts and micro ducts. In addition, the optical waveguide cable 100 is used for outdoor applications.
11 / 34

[0034] Further, the optical waveguide cable 100 includes one or more
optical waveguide band 102, a cylindrical enclosure 104, one or more layers 106 and an outer jacket 108. The optical waveguide cable 100 further includes a first set of robust component 110a and a second set of robust component 110b. The above combination of structural elements enables an improvement in a plurality of parameters of the optical waveguide cable 100. The plurality of parameters includes improvement in optical parameters, mechanical parameters, transmission characteristics and the like.
[0035] The optical waveguide cable 100 includes the one or more
optical waveguide band 102. The one or more optical waveguide band 102 is substantially positioned along the longitudinal axis 114 of the optical waveguide cable 100. Each of the one or more optical waveguide band 102 includes a plurality of light transmission element 112. The light transmission element 112 is also referred to as optical waveguide. Each of the plurality of light transmission element 112 extends substantially along the longitudinal axis 114 of the optical waveguide cable 100. The plurality of longitudinal light transmission element 112 is made of silicon glass. In general, multiple optical waveguides are sandwiched, encapsulated, and/or edge bonded to form an optical waveguide band. Optical-waveguide bands are further divisible into subunits (e.g., a twenty four-waveguide band that is splitable into two twelve-waveguide subunits). In general, waveguide
12 / 34

band cables have inherent advantage of mass fusion splicing. Mass fusion splicing makes the installation easy and saves a lot of time.
[0036] Waveguide band cables offer high packing density and higher
waveguide counts which enables more efficient use of limited duct space. Further band cables are prepped and spliced easily. Use of band cable translates into less installation time, less installation labor cost, and significantly less emergency restoration time. In general, each of the plurality of optical waveguides in the one or more optical waveguide band 102 is the light transmission element 112 used for transmitting information as light pulses from one end to another. In addition, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is a thin strand of silicon glass capable of transmitting optical signals. Also, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is configured to transmit large amounts of information over long distances with relatively low attenuation.
[0037] Further, each of the plurality of optical waveguide in the one or
more optical waveguide band 102 includes a core region and a cladding region. The core region is an inner part of an optical waveguide and the cladding section is an outer part of the optical waveguide. Moreover, the core region is defined by a central longitudinal axis of each of the plurality of optical waveguides. In addition, the cladding region surrounds the core region. Each of the plurality of optical waveguide in the one or more optical waveguide band 102 is made of silicon glass. In
13 / 34

an embodiment of the present disclosure, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is made of any other suitable material of the like.
[0038] The optical waveguide cable 100 includes different forms of
one or more optical waveguide band 102. The one or more optical waveguide band 102 include any suitable number of waveguides per band. In an embodiment of the present disclosure, each of the band in the one or more optical waveguide band 102 includes same number of optical waveguides. In another embodiment of the present disclosure, each band in the one or more optical waveguide band 102 includes different number of plurality of optical waveguides. In yet another embodiment of the present disclosure, each band in the one or more optical waveguide band 102 includes any suitable number of optical waveguides.
[0039] Going further the optical waveguide cable 100 includes the
cylindrical enclosure 104. The cylindrical enclosure 104 is present substantially along the longitudinal axis 114 of the optical waveguide cable 100. The cylindrical enclosure 104 encloses at least one of the one or more optical waveguide band 102. The cylindrical enclosure 104 and the one or more optical waveguide band 102 are present in core of the optical waveguide cable 100. In an embodiment of the present disclosure, the cylindrical enclosure 104 concentrically surrounds the core of the optical waveguide cable 100. The cylindrical enclosure 104
14 / 34

is designed to provide a sound covering to the one or more optical waveguide band 102.
[0040] The cylindrical enclosure 104 is filled with a thixotropic gel. In
an embodiment of the present disclosure, the cylindrical enclosure 104 is filled with any other suitable material of the like. In another embodiment of the present disclosure, the cylindrical enclosure 104 is a dry cylindrical enclosure. The cylindrical enclosure 104 meets an optimal requirement of mechanical properties to facilitate free arrangement of the one or more optical waveguide band 102. In an embodiment of the present disclosure, the cylindrical enclosure 104 is made of thermoplastic material. In another embodiment of the present disclosure, the cylindrical enclosure 104 is made of polymeric material. In yet another embodiment of the present disclosure, the cylindrical component 104 is made of any other suitable material of the like. The optical transmission elements are randomly arranged inside the cylindrical enclosures 104. In an embodiment of the present disclosure, the cylindrical enclosure 104 is a dry cylindrical enclosure. In another embodiment of the present disclosure, the cylindrical enclosure 104 is a gel filled cylindrical enclosure.
[0041] In an embodiment of the present disclosure, the cylindrical
enclosure 104 is colored. In another embodiment of the present disclosure, the cylindrical enclosure 104 is natural colored. In yet another embodiment of the present disclosure, the cylindrical enclosure
15 / 34

104 is of any other suitable color. The cylindrical enclosure 104 is characterized by a diameter. The diameter of the cylindrical enclosure 104 lies in a range of about 7 millimeters to 8 millimeters. In another embodiment of the present disclosure, the diameter of the cylindrical enclosure 104 lies in any other suitable range.
[0042] The optical waveguide cable 100 includes at least one water
inhibiting strip 122. The atleast one water inhibiting strip 122 extends substantially along the longitudinal axis 114 of the optical waveguide cable 100. In general, a water inhibiting strip is highly resistant to water and moisture. The atleast one water inhibiting 122 strip prevents ingression of water and moisture inside the cylindrical enclosure 104. The atleast one water inhibiting strip 122 prevents the one or more optical waveguide band 102 from moisture and water. In an embodiment of the present disclosure, the cylindrical enclosure 104 circumferentially surrounds the atleast one water inhibiting strip 122 (as shown in FIG. 1A). In another embodiment of the present disclosure, the atleast one water inhibiting strip 122 circumferentially surrounds the cylindrical enclosure 104(as shown in FIG. 1B). In yet another embodiment of the present disclosure, the cylindrical enclosure 104 circumferentially surrounds one strip of the atleast one water inhibiting strip 122 and the cylindrical enclosure 104 is surrounded circumferentially by second strip of the atleast one water inhibiting strip 122 (as shown in FIG. 1C). In yet another embodiment of the present disclosure, the atleast one water inhibiting strip 122 is present at any suitable position.
16 / 34

[0043] Going further, the optical waveguide cable 100 includes the one
or more layers 106. The one or more layers 106 concentrically surround the cylindrical enclosure 104. Each of the one or more layers 106 is present substantially along the longitudinal axis 114 of the optical waveguide cable 100. Also, each of the one or more layers 106 concentrically surrounds the core of the optical waveguide cable 100. Each of the one or more layers 106 is made of a material selected from a group. The group includes a fire resistant material, a water swellable tape, an ECCS (electrolytically chrome-coated steel) armor, a glass roving yarn, a binder yarn and an aramid yarn. In an embodiment of the present disclosure, each of the one or more layers 106 is made of a combination of one or more materials selected from the group. In an embodiment of the present disclosure, the group includes any other suitable material of the like.
[0044] In an embodiment of the present disclosure, the one or more
layers 106 prevent water and moisture ingression into the core of the optical waveguide cable 100. In another embodiment of the present disclosure, the one or more layers 106 prevent UV light ingression into the core of the optical waveguide cable 100. In yet another embodiment of the present disclosure, the one or more layers 106 provides mechanical protection to the optical waveguide cable 100. In yet another embodiment of the present disclosure, the one or more layers 106 enables any other suitable characteristic to the optical waveguide cable 100. In an embodiment of the present disclosure, each of the one
17 / 34

or more layers 106 is made of different material. In another
embodiment of the present disclosure, the one or more layers 106 are made of any suitable material. Each of the one or more layers 106 is characterized by a diameter. The diameter of each of the one or more layer lies in a range of about 7.5 millimeters to 8.5 millimeters. In an embodiment of the present disclosure, the diameter of each of the one or more layer lies in any other suitable range.
[0045] Further, the optical waveguide cable 100 includes the outer
jacket 108. The outer jacket 108 circumferentially surrounds the one or more layers 106. The outer jacket 108 is the outermost layer of the one or more layers 106. The outer jacket 108 is concentric to each of the one or more layers 106. In general, the outer jacket 108 protects optical waveguide cable 100 from harsh environment and harmful UV rays. The outer jacket 108 enables a protective coating for the optical waveguide cable 100. In an embodiment of the present disclosure, the outer jacket 108 is made of UV proof polyethylene. In another embodiment of the present disclosure, the outer jacket 108 is made of any other suitable material. In an embodiment of the present disclosure, the outer jacket 108 is black in color. In another embodiment of the present disclosure, the outer jacket 108 is of any other suitable color.
[0046] Further, the optical waveguide cable 100 includes a first set of
robust component 110a and a second set of robust component 110b. The first set of robust component 110a and the second set of robust
18 / 34

component 110b are embedded longitudinally in the outer jacket 108. In general, robust components are embedded in the outer jacket 108 to provide mechanical support and tensile strength to the optical waveguide cable 100. The first set of robust component 110a and the second set of robust component 110b are embedded in the outer jacket 108 to restrict shrinkage of optical waveguide cable 100 during thermal cycling. The first set of robust component 110a and the second set of robust component 110b provide tensile strength to the optical waveguide cable 100. Each robust component in the first set of robust component 110a and the second set of robust component 110b are made of fiber reinforced plastic (FRP). In an embodiment of the present disclosure, each robust component in the first set of robust component 110a and the second set of robust component 110b are made of any other suitable material.
[0047] The first set of robust component 110a includes atleast two
robust components. The second set of robust component 110b includes atleast two robust components. In an embodiment of the present disclosure, the first set of robust component 110a and the second setoff robust components 110b includes any other suitable number of robust components. The first set of robust component 110a and the second set of robust component 110b are arranged in a specific pattern in the outer jacket 108. The second set of robust component 110b is placed 180° apart from the first set of robust component 110a. The first set of robust component 110a is placed diametrically opposite to the second set of robust component 110b. In an embodiment of the present disclosure,
19 / 34

the, first set of robust component 110a is placed at any suitable orientation from the first virtual plane. In another embodiment of the present disclosure, the second set of robust component 110b is placed at any suitable orientation from the first virtual plane.
[0048] The first set of robust component 110a and the second set of
robust component 110b are embedded in a single layer of the one or more layers 106. In an embodiment of the present disclosure, the first set of robust component 110a and the second set of robust component 110b are embedded in the outer jacket 108. In another embodiment of the present disclosure, the first set of robust component 110a and the second set of robust component 110b are embedded in any suitable layer. The first set of robust component 110a includes two or more robust components. In an embodiment of the present disclosure, the first set of robust component 110a includes two robust components. In another embodiment of the present disclosure, the first set of robust component 110a includes any suitable number of robust components. The second set of robust component 110b includes two or more robust components. In an embodiment of the present disclosure, the second set of robust component 110b includes two robust components. In another embodiment of the present disclosure, the second set of robust component 110b includes any suitable number of robust components.
[0049] Each robust component of the two or more robust components
in the first set of robust component 110a is different in size. Each robust component of the two or more robust components in the second
20 / 34

set of robust component 110b is different in size. Each robust component of the two or more robust components in the first set of robust component 110a has a second geometrical center 118. The second geometrical center 118 of each robust component of the two or more robust components in the first set of robust component 110a is equidistant from the longitudinal axis 114 of the optical waveguide cable 100. Each robust component of the two or more robust components in the second set of robust component 110b has a second geometrical center 118. The second geometrical center 118 of each robust component of the two or more robust components in the second set of robust component 110b is equidistant from the longitudinal axis 114 of the optical waveguide cable 100.
[0050] Each of the two or more robust components in the first set of
robust component 110a and the second set of robust component 110b is made of fiber reinforced plastic (FRP). In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b is made of any other suitable material. The two or more robust components of the first set of robust component 110a and the second set of robust component 110b are collectively characterized by a total area. The ratio of total area of the two or more robust components and the total area of the cylindrical enclosure 104 lies in a range of about 0.392 to 0.503. In an embodiment of the present disclosure, the ratio of total area of the two or more robust components and the total area of the cylindrical enclosure 104 lies in any other suitable range.
21 / 34

[0051] Further, arrangement of unequal size robust components in the
first set of robust component 110a is different from arrangement of unequal size robust component in the second set of robust component 110b. The different arrangement of unequal size robust component corresponds to different placement of unequal robust component in the first set of robust component 110a in comparison with the second set of robust component 110b. The first set of robust component 110a includes a larger robust component above a smaller robust component. The second set of robust component 110b includes a smaller robust component above a larger robust component. Further, arrangement of two or more robust components in the first set of robust component 110a is different from the arrangement of two or more robust component in the second set of robust component 110b. Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b is substantially positioned at a distance of at least 0.3 millimetres from a outer circumference C1 of the outer jacket 108. In an embodiment of the present disclosure, each of the two or more robust components is positioned at any suitable distance from the outer circumference C1 of the outer jacket 108.
[0052] Each of the two or more robust components in the first set of
robust component 110a is substantially positioned at least 0.1 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a is positioned at any suitable distance apart from one another. Each of the two or more robust components in the second
22 / 34

set of robust component 110b is substantially positioned at least 0.1 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b is positioned at any suitable distance apart from one another.
[0053] Each of the two or more robust components in the first set of
robust component 110a is substantially positioned at most 0.4 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a is positioned at any suitable distance apart from one another. Each of the two or more robust components in the second set of robust component 110b is substantially positioned at most 0.4 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b is positioned at any suitable distance apart from one another.
[0054] Each of the two or more robust components in the first set of
robust component 110a is characterized by a diameter. The diameter of each of the two or more robust components in the first set of robust component 110a lies in a range of about 1.4 millimeters to 1.8 millimeters. In an embodiment of the present disclosure, the diameter of each of the two or more robust components in the first set of robust component 110a lies in any other suitable range. Each of the two or
23 / 34

more robust components in the second set of robust component 110b is characterized by a diameter. The diameter of each of the two or more robust components in the second set of robust component 110b lies in a range of about 1.4 millimeters to 1.8 millimeters. In an embodiment of the present disclosure, the diameter of each of the two or more robust components in the second set of robust component 110b lies in any other suitable range.
[0055] Each of the two or more robust components in the first set of
robust component 110a is coated with a layer 120 of ethylene acrylic acid. The layer 120 of ethylene acrylic acid on each of the two or more robust components in the first set of robust component 110a is about 20-25 microns thick. In an embodiment of the present disclosure, the layer 120 of ethylene acrylic acid on each of the two or more robust components in the first set of robust component 110a is of any suitable thickness. Each of the two or more robust components in the second set of robust component 110b is coated with the layer 120 of ethylene acrylic acid. The layer 120 of ethylene acrylic acid on each of the two or more robust components in the second set of robust component 110b is about 20-25 microns thick. In an embodiment of the present disclosure, the layer 120 of ethylene acrylic acid on each of the two or more robust components in the second set of robust component 110b is of any suitable thickness. In an embodiment of the present disclosure, each of the two or more robust component in the first set of robust component 110a and the second set of robust component 110b are coated with any other suitable material. In another embodiment of the present disclosure, each of the two or more robust components in the
24 / 34

first set of robust component 110a and the second set of robust component 110b may not be coated.
[0056] Each of the two or more robust components in the first set of
robust component 110a and the second set of robust component 110b has a tensile modulus of about 52 GPa. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has any other suitable value of tensile modulus. Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has a tensile strength of atleast 3000N at 0.6% waveguide strain. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has any other suitable value of tensile strength.
[0057] Each of the two or more robust components in the first set of
robust component 110a has a tensile strength of about 2286 Newton at a strain of about 0.25%. Each of the two or more robust components in the first set of robust component 110a has a tensile strength of about 3369 Newton at a strain of about 0.40%. Each of the two or more robust components in the first set of robust component 110a has a tensile strength of about 4885 Newton at a strain of about 0.60%. In an embodiment of the present disclosure, each of the two or more robust
25 / 34

components in the first set of robust component 110a has any suitable value of tensile strength at any value of strain.
[0058] Each of the two or more robust components in the second set of
robust component 110b has a tensile strength of about 2286 Newton at a strain of about 0.25%. Each of the two or more robust components in the second set of robust component 110b has a tensile strength of about 3369 Newton at a strain of about 0.40%. Each of the two or more robust components in the second set of robust component 110b has a tensile strength of about 4885 Newton at a strain of about 0.60%. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b has any suitable value of tensile strength at any value of strain.
[0059] Going further, the optical waveguide cable 100 may include a
filling component. The filling component may be filled around the one or more optical waveguide band 102 in the cylindrical enclosure. In addition, the filling component may be filled around the cylindrical enclosure 104 in the one or more layers 106. In general, the filling component is a compound used to prevent the ingress of moisture or water into the optical waveguide cable 100. The exact nature of the filling component varies depending upon the type of cable and the environment conditions. The filling component is a soft waxy compound or soft gel with a consistency similar to that of thickened oil.
26 / 34

[0060] In an embodiment of the present disclosure, the filling
component is a thixotropic gel. In another embodiment of the present disclosure, the filling component is replaced by one or more water swellable tape positioned around the stack of optical waveguide band 102. In yet another embodiment of the present disclosure, the filling component may be replaced by any other type of water blocking elements. All these elements prevent the optical waveguide band 102 from moisture and damage caused from water ingression.
[0061] Further, the optical waveguide cable 100 may include one or
more ripcord (not shown in figure) embedded in the one or more layers 106. The one or more ripcord lies substantially along the longitudinal axis 114 of the optical waveguide cable 100. The one or more ripcords facilitate stripping of the one or more layers 106. In an embodiment of the present disclosure, the plurality of ripcords is positioned diametrically opposite to each other. In an embodiment of the present disclosure, the one or more ripcords are made of polyester based twisted yarns. In another embodiment of the present disclosure, the one or more ripcords are made of any other suitable material.
[0062] In an embodiment of the present disclosure, the optical
waveguide cable 100 with 144 light transmission element 112, having dry cylindrical enclosure 104 has a diameter of about 15 millimeters. In another embodiment of the present disclosure, the optical waveguide cable 100 has any other suitable diameter. In an embodiment of the
27 / 34

present disclosure, the optical waveguide cable 100 with 144 light transmission element 112 has a weight of about 150 kilogram/kilometer. In another embodiment of the present disclosure, the optical waveguide cable 100 has any other suitable weight.
[0063] The foregoing descriptions of pre-defined embodiments of the
present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present technology.

claimed

1.An optical waveguide cable (100) defined by a longitudinal axis (114) passing through a first geometrical center (116) of the optical waveguide cable (100), the optical waveguide cable (100) comprising:

one or more optical waveguide band (102) substantially along the longitudinal axis (114) of the optical waveguide cable (100), wherein each of the one or more optical waveguide band (102) having a plurality of light transmission element (112), wherein each of the plurality of light transmission element (112) is made of silicon based glass;

a cylindrical enclosure (104), wherein the cylindrical enclosure (104) extends substantially along the longitudinal axis (114) of the optical waveguide cable (100);

one or more layers (106) substantially centered on the longitudinal axis (114), wherein the one or more layers (106) surrounds the cylindrical enclosure (104) , wherein each of the one or more layers (106) is substantially along the longitudinal axis (114) of the optical waveguide cable (100);

an outer jacket (108), wherein the outer jacket (108) circumferentially surrounds the one or more layers (106), wherein the outer jacket (108) comprising an outer circumference (C1);

a first set of robust component (110a) embedded in the outer jacket (108), wherein the first set of robust component (110a) are positioned at a first location; and

a second set of robust component (110b) embedded in the outer jacket (108), wherein the second set of robust component (110b) are positioned substantially 180° apart from the first set of robust component (110a), wherein the first set of robust component (110a) being placed diametrically opposite to the second set of robust component (110b), wherein each robust component of the first set of robust component (110a) are of unequal size, wherein each robust component of the second set of robust component (110b) are of unequal sizes, wherein arrangement of unequal size robust components in the first set of robust component (110a) is different from the arrangement of unequal size robust components in the second set of robust component (110b), wherein the first set of robust component (110a) and the second set of robust component (110b) comprising atleast two robust components, and wherein ratio of the total area of robust component to the total area of the cylindrical enclosure (104) being in the range of about 0.392 to 0.503.

2. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) are positioned approximately 0.5 millimeters from the outer circumference (C1) of the outer jacket (108).

3. The optical waveguide cable (100) as recited in claim 1, wherein the optical waveguide cable (100) comprises of atleast one water inhibiting strip (122), wherein the atleast one water inhibiting strip (122) extends substantially along the longitudinal axis (114) of the optical waveguide cable (100).

4. The optical waveguide cable (100) as recited in claim 1, wherein the cylindrical enclosure (104) circumferentially surrounds atleast one water inhibiting strip (122).

5. The optical waveguide cable (100) as recited in claim 1, wherein atleast one water inhibiting strip (122) circumferentially surrounds the cylindrical enclosure (104).

6. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) are positioned approximately 0.1 millimeters to 0.4 millimeters apart from one another.

7. The optical waveguide cable (100) as recited in claim 1, wherein each of the one or more layers (106) being made of a material selected from a group, wherein the group comprises of a fire resistant material, a water swellable tape, an ECCS armor, a glass roving yarn, a binder yarn layer and an aramid yarn layer.

8. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) is made of fiber reinforced plastic.

9. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) is defined by a second geometrical center (118), wherein the second geometrical center (118) of each robust component is equidistant from the longitudinal axis (114) of the optical waveguide cable (100).

10. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) have a size in a range of about 1.4 millimeters to 1.8 millimeters.

11. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) is coated with a layer (120) of ethylene acrylic acid, wherein the layer (120) of ethylene acrylic acid has a thickness of 20-25 microns.

12. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) has a tensile modulus of 52 GPa.

13. The optical waveguide cable (100) as recited in claim 1, wherein each robust component in the first set of robust component (110a) and the second set of robust component (110b) has a tensile strength of atleast 3000N at 0.6% fiber strain.

14. The optical waveguide cable (100) as recited in claim 1, wherein the cylindrical enclosure (104) is filled with thixotropic gel.
, Description:TECHNICAL FIELD

[0001] The present disclosure relates to the field of optical waveguide cable. More particularly, the present disclosure relates optical waveguide cable with unequal sized robust component.

BACKGROUND

[0002] Over the last few years, optical waveguide cables have been increasingly employed for data transmission. Optical waveguide cables are deployed outdoor, indoor and indoor-outdoor. One such type of optical waveguide cables is a central one or more cylindrical enclosure type optical waveguide cable. The central one or more cylindrical enclosure type optical waveguide cable may include a number of optical waveguide bands inside a central one or more cylindrical enclosure. The central one or more cylindrical enclosure may or may not be filled with a water blocking gel. Further, the central one or more cylindrical enclosure type optical waveguide cable includes a protective jacket layer and other additional layers. Typically, the central one or more cylindrical enclosure type optical waveguide cable includes a number of rigid robust components embedded inside the protective jacket layer. The robust components may be made of fiber reinforced plastic. The robust components restrict shrinkage of the protective jacket layer during thermal cycling and provide tensile strength to the optical waveguide cable. The number of robust components may be two or four.

OBJECT OF THE DISCLOSURE

[0003] A primary object of the disclosure is to provide an optical waveguide cable with unequal sized robust components.

[0004] Another object of the present disclosure is to provide the optical waveguide cable with sets of robust component of different arrangement placed diametrically opposite to one another.

[0005] Yet another object of the present disclosure is to provide the optical waveguide cable with improved stiffness and flexibility.

[0006] Yet another object of the present disclosure is to provide the optical waveguide cable with environment robustness.

SUMMARY

[0007] In an aspect of the present disclosure, the present disclosure provides an optical waveguide cable. The optical waveguide cable is defined by a longitudinal axis passing through a first geometrical center of the optical waveguide cable. The optical waveguide cable includes one or more optical waveguide band substantially along the longitudinal axis of the optical waveguide cable. Each of the one or more optical waveguide band has a plurality of light transmission element. The plurality of light transmission element is made of silicon glass. The optical waveguide cable includes one or more layers substantially concentric to the longitudinal axis of the optical waveguide cable. The one or more layers of the optical waveguide cable surround the cylindrical enclosure. Each of the one or more layers is substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes a cylindrical enclosure substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes an outer jacket. The outer jacket circumferentially surrounds each of the one or more layers. The outer jacket is having has an outer circumference. A first set of robust components is embedded in the outer jacket. The first set of robust components is positioned at a first location. A second set of robust components embedded in the outer jacket. The second set of robust components is positioned substantially 180° apart from the first set of robust components. The first set of robust components and the second set of robust components are parallel to a first virtual plane and the longitudinal axis. The first virtual plane passes through the longitudinal axis. The first virtual plane is oriented such that the first set of robust components and the second set of robust components are ~90 degree apart. Each robust component of the first set of robust components and the second set of robust components are of unequal sizes. The first set of robust components and the second set of robust components have atleast two robust components. The ratio of total area of two or more robust component to the total area of the cylindrical enclosure being in the range of 0.392 and 0.503.

[0008] In an embodiment of the present disclosure, each of the atleast two robust components in the first set of robust components and the second set of robust components being positioned at least 0.1 millimeters apart from one another.

[0009] In an embodiment of the present disclosure, the optical waveguide cable comprises of atleast one water inhibiting strip. The atleast one water inhibiting strip extends substantially along the longitudinal axis of the optical waveguide cable.

[0010] In an embodiment of the present disclosure, the cylindrical enclosure circumferentially surrounds atleast one water inhibiting strip.

[0011] In an embodiment of the present disclosure, atleast one water inhibiting strip circumferentially surrounds the cylindrical enclosure.

[0012] In an embodiment of the present disclosure, each of the atleast two robust components in the first set of robust components and the second set of robust components being positioned at most 0.4 millimeters apart from one another.

[0013] In an embodiment of the present disclosure, each of the one or more layers is made of a material selected from a group. The group includes a fire resistant material, a water swellable tape, an ECCS armor, a glass roving yarn, a binder yarn and an aramid yarn.

[0014] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components is of fiber reinforced plastic.

[0015] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components are of unequal size.

[0016] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components being positioned at least 0.3 millimeters apart from the circumference of the optical waveguide cable.

[0017] In an embodiment of the present disclosure, the center of each of the two or more robust components in the first set of robust components and the second set of robust components being equidistant from the longitudinal axis of the optical waveguide cable.

[0018] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components have a size in a range of 1.4 millimeters to 1.8 millimeters.

[0019] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components being coated with a layer of ethylene acrylic acid.

[0020] In an embodiment of the present disclosure, the layer of ethylene acrylic acid has a thickness of 20-25 microns.

[0021] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components has a tensile modulus of 52 GPa.

[0022] In an embodiment of the present disclosure, the cylindrical enclosure is filled with a thixotropic gel.

[0023] In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust components and the second set of robust components has a tensile strength of atleast 3000 N at 0.6% waveguide strain.

STATEMENT OF DISCLOSURE

[0024] In an aspect of the present disclosure, the present disclosure provides an optical waveguide cable. The optical waveguide cable is defined by a longitudinal axis passing through a first geometrical center of the optical waveguide cable. The optical waveguide cable includes one or more optical waveguide band substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes an outer jacket. The outer jacket circumferentially surrounds each of the one or more layers. The outer jacket is having has an outer circumference. Each of the one or more optical waveguide band has a plurality of light transmission element. The plurality of light transmission element is made of silicon glass. The optical waveguide cable includes one or more layers substantially concentric to the longitudinal axis of the optical waveguide cable. The one or more layers of the optical waveguide cable surround the one or more optical waveguide band. Each of the one or more layers is substantially along the longitudinal axis of the optical waveguide cable. The optical waveguide cable includes a cylindrical enclosure substantially along the longitudinal axis of the optical waveguide cable. A first set of robust components is embedded in the outer jacket. The first set of robust components is positioned at a first location. A second set of robust components embedded in the outer jacket. The second set of robust components is positioned substantially 180° apart from the first set of robust components. The first set of robust components and the second set of robust components are parallel to a first virtual plane and the longitudinal axis. The first virtual plane passes through the longitudinal axis. The first virtual plane is oriented such that the first set of robust components and the second set of robust components are ~90 degree apart. Each robust component of the first set of robust components and the second set of robust components are of unequal sizes. The first set of robust components and the second set of robust components have atleast two robust components. The ratio of total area of two or more robust component to the total area of the cylindrical enclosure being in the range of 0.392 and 0.503.

BRIEF DESCRIPTION OF FIGURES

[0025] Having thus described the disclosure, in general, terms, reference will now be made to the accompanying figures, wherein:

[0026] FIG. 1A illustrates a cross sectional view of an optical waveguide cable, in accordance with an embodiment of the present disclosure.

[0027] FIG. 1B illustrates a cross sectional view of an optical waveguide cable, in accordance with another embodiment of the present disclosure.

[0028] FIG. 1C illustrates a cross sectional view of an optical waveguide cable, in accordance with yet another embodiment of the present disclosure.

[0029] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.

DETAILED DESCRIPTION

[0030] Reference will now be made in detail to selected embodiments of the present disclosure in conjunction with accompanying figures. The embodiments described herein are not intended to limit the scope of the disclosure, and the present disclosure should not be construed as limited to the embodiments described. This disclosure may be embodied in different forms without departing from the scope and spirit of the disclosure. It should be understood that the accompanying figures are intended and provided to illustrate embodiments of the disclosure described below and are not necessarily drawn to scale. In the drawings, like numbers refer to like elements throughout, and thicknesses and dimensions of some components may be exaggerated for providing better clarity and ease of understanding.

[0031] It should be noted that the terms "first", "second", and the like, herein do not denote any order, ranking, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

[0032] FIG. 1A, FIG. 1B and FIG. 1C illustrates a cross sectional view of an optical waveguide cable 100, in accordance with an embodiment of the present disclosure. In general, the optical waveguide cable 100 is a network cable that contains strands or array of glass waveguides inside an insulated casing. The glass waveguides are used to carry optical signals. The insulated casing facilitates to protect the waveguides from heat, cold, external interference from other types of wiring. The insulated casing provides protection to the optical waveguide cable 100 from ultraviolet rays of sun. The optical waveguide cable 100 is designed for long distance transmission of optical signal. The optical waveguide cable 100 enables very high speed data transmission. The optical waveguide cable 100 transmits data at a higher speed than copper data cable, as the optical waveguide cable 100 have much higher band width.

[0033] The optical waveguide cable 100 is used for a wide variety of applications. The wide variety of applications includes high speed internet, data transmission, optical sensor, intercommunication, optical circuit installations and the like. The optical waveguide cable 100 is very less susceptible to interference. The optical waveguide cable 100 is associated with a longitudinal axis 114. The longitudinal axis 114 of the optical waveguide cable 100 passes through a first geometrical center 116 of the optical waveguide cable 100. The first geometrical center 116 is center of the cross section of the optical waveguide cable 100. The optical waveguide cable 100 is a single mode optical waveguide cable. In an embodiment of the present disclosure, the optical waveguide cable 100 is a multimode optical waveguide cable. In general, the optical waveguide cable 100 is used for installation in ducts and micro ducts. In addition, the optical waveguide cable 100 is used for outdoor applications.

[0034] Further, the optical waveguide cable 100 includes one or more optical waveguide band 102, a cylindrical enclosure 104, one or more layers 106 and an outer jacket 108. The optical waveguide cable 100 further includes a first set of robust component 110a and a second set of robust component 110b. The above combination of structural elements enables an improvement in a plurality of parameters of the optical waveguide cable 100. The plurality of parameters includes improvement in optical parameters, mechanical parameters, transmission characteristics and the like.

[0035] The optical waveguide cable 100 includes the one or more optical waveguide band 102. The one or more optical waveguide band 102 is substantially positioned along the longitudinal axis 114 of the optical waveguide cable 100. Each of the one or more optical waveguide band 102 includes a plurality of light transmission element 112. The light transmission element 112 is also referred to as optical waveguide. Each of the plurality of light transmission element 112 extends substantially along the longitudinal axis 114 of the optical waveguide cable 100. The plurality of longitudinal light transmission element 112 is made of silicon glass. In general, multiple optical waveguides are sandwiched, encapsulated, and/or edge bonded to form an optical waveguide band. Optical-waveguide bands are further divisible into subunits (e.g., a twenty four-waveguide band that is splitable into two twelve-waveguide subunits). In general, waveguide band cables have inherent advantage of mass fusion splicing. Mass fusion splicing makes the installation easy and saves a lot of time.

[0036] Waveguide band cables offer high packing density and higher waveguide counts which enables more efficient use of limited duct space. Further band cables are prepped and spliced easily. Use of band cable translates into less installation time, less installation labor cost, and significantly less emergency restoration time. In general, each of the plurality of optical waveguides in the one or more optical waveguide band 102 is the light transmission element 112 used for transmitting information as light pulses from one end to another. In addition, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is a thin strand of silicon glass capable of transmitting optical signals. Also, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is configured to transmit large amounts of information over long distances with relatively low attenuation.

[0037] Further, each of the plurality of optical waveguide in the one or more optical waveguide band 102 includes a core region and a cladding region. The core region is an inner part of an optical waveguide and the cladding section is an outer part of the optical waveguide. Moreover, the core region is defined by a central longitudinal axis of each of the plurality of optical waveguides. In addition, the cladding region surrounds the core region. Each of the plurality of optical waveguide in the one or more optical waveguide band 102 is made of silicon glass. In an embodiment of the present disclosure, each of the plurality of optical waveguide in the one or more optical waveguide band 102 is made of any other suitable material of the like.

[0038] The optical waveguide cable 100 includes different forms of one or more optical waveguide band 102. The one or more optical waveguide band 102 include any suitable number of waveguides per band. In an embodiment of the present disclosure, each of the band in the one or more optical waveguide band 102 includes same number of optical waveguides. In another embodiment of the present disclosure, each band in the one or more optical waveguide band 102 includes different number of plurality of optical waveguides. In yet another embodiment of the present disclosure, each band in the one or more optical waveguide band 102 includes any suitable number of optical waveguides.

[0039] Going further the optical waveguide cable 100 includes the cylindrical enclosure 104. The cylindrical enclosure 104 is present substantially along the longitudinal axis 114 of the optical waveguide cable 100. The cylindrical enclosure 104 encloses at least one of the one or more optical waveguide band 102. The cylindrical enclosure 104 and the one or more optical waveguide band 102 are present in core of the optical waveguide cable 100. In an embodiment of the present disclosure, the cylindrical enclosure 104 concentrically surrounds the core of the optical waveguide cable 100. The cylindrical enclosure 104 is designed to provide a sound covering to the one or more optical waveguide band 102.

[0040] The cylindrical enclosure 104 is filled with a thixotropic gel. In an embodiment of the present disclosure, the cylindrical enclosure 104 is filled with any other suitable material of the like. In another embodiment of the present disclosure, the cylindrical enclosure 104 is a dry cylindrical enclosure. The cylindrical enclosure 104 meets an optimal requirement of mechanical properties to facilitate free arrangement of the one or more optical waveguide band 102. In an embodiment of the present disclosure, the cylindrical enclosure 104 is made of thermoplastic material. In another embodiment of the present disclosure, the cylindrical enclosure 104 is made of polymeric material. In yet another embodiment of the present disclosure, the cylindrical component 104 is made of any other suitable material of the like. The optical transmission elements are randomly arranged inside the cylindrical enclosures 104. In an embodiment of the present disclosure, the cylindrical enclosure 104 is a dry cylindrical enclosure. In another embodiment of the present disclosure, the cylindrical enclosure 104 is a gel filled cylindrical enclosure.

[0041] In an embodiment of the present disclosure, the cylindrical enclosure 104 is colored. In another embodiment of the present disclosure, the cylindrical enclosure 104 is natural colored. In yet another embodiment of the present disclosure, the cylindrical enclosure 104 is of any other suitable color. The cylindrical enclosure 104 is characterized by a diameter. The diameter of the cylindrical enclosure 104 lies in a range of about 7 millimeters to 8 millimeters. In another embodiment of the present disclosure, the diameter of the cylindrical enclosure 104 lies in any other suitable range.

[0042] The optical waveguide cable 100 includes at least one water inhibiting strip 122. The atleast one water inhibiting strip 122 extends substantially along the longitudinal axis 114 of the optical waveguide cable 100. In general, a water inhibiting strip is highly resistant to water and moisture. The atleast one water inhibiting 122 strip prevents ingression of water and moisture inside the cylindrical enclosure 104. The atleast one water inhibiting strip 122 prevents the one or more optical waveguide band 102 from moisture and water. In an embodiment of the present disclosure, the cylindrical enclosure 104 circumferentially surrounds the atleast one water inhibiting strip 122 (as shown in FIG. 1A). In another embodiment of the present disclosure, the atleast one water inhibiting strip 122 circumferentially surrounds the cylindrical enclosure 104(as shown in FIG. 1B). In yet another embodiment of the present disclosure, the cylindrical enclosure 104 circumferentially surrounds one strip of the atleast one water inhibiting strip 122 and the cylindrical enclosure 104 is surrounded circumferentially by second strip of the atleast one water inhibiting strip 122 (as shown in FIG. 1C). In yet another embodiment of the present disclosure, the atleast one water inhibiting strip 122 is present at any suitable position.

[0043] Going further, the optical waveguide cable 100 includes the one or more layers 106. The one or more layers 106 concentrically surround the cylindrical enclosure 104. Each of the one or more layers 106 is present substantially along the longitudinal axis 114 of the optical waveguide cable 100. Also, each of the one or more layers 106 concentrically surrounds the core of the optical waveguide cable 100. Each of the one or more layers 106 is made of a material selected from a group. The group includes a fire resistant material, a water swellable tape, an ECCS (electrolytically chrome-coated steel) armor, a glass roving yarn, a binder yarn and an aramid yarn. In an embodiment of the present disclosure, each of the one or more layers 106 is made of a combination of one or more materials selected from the group. In an embodiment of the present disclosure, the group includes any other suitable material of the like.

[0044] In an embodiment of the present disclosure, the one or more layers 106 prevent water and moisture ingression into the core of the optical waveguide cable 100. In another embodiment of the present disclosure, the one or more layers 106 prevent UV light ingression into the core of the optical waveguide cable 100. In yet another embodiment of the present disclosure, the one or more layers 106 provides mechanical protection to the optical waveguide cable 100. In yet another embodiment of the present disclosure, the one or more layers 106 enables any other suitable characteristic to the optical waveguide cable 100. In an embodiment of the present disclosure, each of the one or more layers 106 is made of different material. In another embodiment of the present disclosure, the one or more layers 106 are made of any suitable material. Each of the one or more layers 106 is characterized by a diameter. The diameter of each of the one or more layer lies in a range of about 7.5 millimeters to 8.5 millimeters. In an embodiment of the present disclosure, the diameter of each of the one or more layer lies in any other suitable range.

[0045] Further, the optical waveguide cable 100 includes the outer jacket 108. The outer jacket 108 circumferentially surrounds the one or more layers 106. The outer jacket 108 is the outermost layer of the one or more layers 106. The outer jacket 108 is concentric to each of the one or more layers 106. In general, the outer jacket 108 protects optical waveguide cable 100 from harsh environment and harmful UV rays. The outer jacket 108 enables a protective coating for the optical waveguide cable 100. In an embodiment of the present disclosure, the outer jacket 108 is made of UV proof polyethylene. In another embodiment of the present disclosure, the outer jacket 108 is made of any other suitable material. In an embodiment of the present disclosure, the outer jacket 108 is black in color. In another embodiment of the present disclosure, the outer jacket 108 is of any other suitable color.

[0046] Further, the optical waveguide cable 100 includes a first set of robust component 110a and a second set of robust component 110b. The first set of robust component 110a and the second set of robust component 110b are embedded longitudinally in the outer jacket 108. In general, robust components are embedded in the outer jacket 108 to provide mechanical support and tensile strength to the optical waveguide cable 100. The first set of robust component 110a and the second set of robust component 110b are embedded in the outer jacket 108 to restrict shrinkage of optical waveguide cable 100 during thermal cycling. The first set of robust component 110a and the second set of robust component 110b provide tensile strength to the optical waveguide cable 100. Each robust component in the first set of robust component 110a and the second set of robust component 110b are made of fiber reinforced plastic (FRP). In an embodiment of the present disclosure, each robust component in the first set of robust component 110a and the second set of robust component 110b are made of any other suitable material.

[0047] The first set of robust component 110a includes atleast two robust components. The second set of robust component 110b includes atleast two robust components. In an embodiment of the present disclosure, the first set of robust component 110a and the second setoff robust components 110b includes any other suitable number of robust components. The first set of robust component 110a and the second set of robust component 110b are arranged in a specific pattern in the outer jacket 108. The second set of robust component 110b is placed 180° apart from the first set of robust component 110a. The first set of robust component 110a is placed diametrically opposite to the second set of robust component 110b. In an embodiment of the present disclosure, the, first set of robust component 110a is placed at any suitable orientation from the first virtual plane. In another embodiment of the present disclosure, the second set of robust component 110b is placed at any suitable orientation from the first virtual plane.

[0048] The first set of robust component 110a and the second set of robust component 110b are embedded in a single layer of the one or more layers 106. In an embodiment of the present disclosure, the first set of robust component 110a and the second set of robust component 110b are embedded in the outer jacket 108. In another embodiment of the present disclosure, the first set of robust component 110a and the second set of robust component 110b are embedded in any suitable layer. The first set of robust component 110a includes two or more robust components. In an embodiment of the present disclosure, the first set of robust component 110a includes two robust components. In another embodiment of the present disclosure, the first set of robust component 110a includes any suitable number of robust components. The second set of robust component 110b includes two or more robust components. In an embodiment of the present disclosure, the second set of robust component 110b includes two robust components. In another embodiment of the present disclosure, the second set of robust component 110b includes any suitable number of robust components.

[0049] Each robust component of the two or more robust components in the first set of robust component 110a is different in size. Each robust component of the two or more robust components in the second set of robust component 110b is different in size. Each robust component of the two or more robust components in the first set of robust component 110a has a second geometrical center 118. The second geometrical center 118 of each robust component of the two or more robust components in the first set of robust component 110a is equidistant from the longitudinal axis 114 of the optical waveguide cable 100. Each robust component of the two or more robust components in the second set of robust component 110b has a second geometrical center 118. The second geometrical center 118 of each robust component of the two or more robust components in the second set of robust component 110b is equidistant from the longitudinal axis 114 of the optical waveguide cable 100.

[0050] Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b is made of fiber reinforced plastic (FRP). In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b is made of any other suitable material. The two or more robust components of the first set of robust component 110a and the second set of robust component 110b are collectively characterized by a total area. The ratio of total area of the two or more robust components and the total area of the cylindrical enclosure 104 lies in a range of about 0.392 to 0.503. In an embodiment of the present disclosure, the ratio of total area of the two or more robust components and the total area of the cylindrical enclosure 104 lies in any other suitable range.

[0051] Further, arrangement of unequal size robust components in the first set of robust component 110a is different from arrangement of unequal size robust component in the second set of robust component 110b. The different arrangement of unequal size robust component corresponds to different placement of unequal robust component in the first set of robust component 110a in comparison with the second set of robust component 110b. The first set of robust component 110a includes a larger robust component above a smaller robust component. The second set of robust component 110b includes a smaller robust component above a larger robust component. Further, arrangement of two or more robust components in the first set of robust component 110a is different from the arrangement of two or more robust component in the second set of robust component 110b. Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b is substantially positioned at a distance of at least 0.3 millimetres from a outer circumference C1 of the outer jacket 108. In an embodiment of the present disclosure, each of the two or more robust components is positioned at any suitable distance from the outer circumference C1 of the outer jacket 108.

[0052] Each of the two or more robust components in the first set of robust component 110a is substantially positioned at least 0.1 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a is positioned at any suitable distance apart from one another. Each of the two or more robust components in the second set of robust component 110b is substantially positioned at least 0.1 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b is positioned at any suitable distance apart from one another.

[0053] Each of the two or more robust components in the first set of robust component 110a is substantially positioned at most 0.4 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a is positioned at any suitable distance apart from one another. Each of the two or more robust components in the second set of robust component 110b is substantially positioned at most 0.4 millimetres apart from one another. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b is positioned at any suitable distance apart from one another.

[0054] Each of the two or more robust components in the first set of robust component 110a is characterized by a diameter. The diameter of each of the two or more robust components in the first set of robust component 110a lies in a range of about 1.4 millimeters to 1.8 millimeters. In an embodiment of the present disclosure, the diameter of each of the two or more robust components in the first set of robust component 110a lies in any other suitable range. Each of the two or more robust components in the second set of robust component 110b is characterized by a diameter. The diameter of each of the two or more robust components in the second set of robust component 110b lies in a range of about 1.4 millimeters to 1.8 millimeters. In an embodiment of the present disclosure, the diameter of each of the two or more robust components in the second set of robust component 110b lies in any other suitable range.

[0055] Each of the two or more robust components in the first set of robust component 110a is coated with a layer 120 of ethylene acrylic acid. The layer 120 of ethylene acrylic acid on each of the two or more robust components in the first set of robust component 110a is about 20- 25 microns thick. In an embodiment of the present disclosure, the layer 120 of ethylene acrylic acid on each of the two or more robust components in the first set of robust component 110a is of any suitable thickness. Each of the two or more robust components in the second set of robust component 110b is coated with the layer 120 of ethylene acrylic acid. The layer 120 of ethylene acrylic acid on each of the two or more robust components in the second set of robust component 110b is about 20-25 microns thick. In an embodiment of the present disclosure, the layer 120 of ethylene acrylic acid on each of the two or more robust components in the second set of robust component 110b is of any suitable thickness. In an embodiment of the present disclosure, each of the two or more robust component in the first set of robust component 110a and the second set of robust component 110b are coated with any other suitable material. In another embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b may not be coated.

[0056] Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has a tensile modulus of about 52 GPa. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has any other suitable value of tensile modulus. Each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has a tensile strength of atleast 3000N at 0.6% waveguide strain. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a and the second set of robust component 110b has any other suitable value of tensile strength.

[0057] Each of the two or more robust components in the first set of robust component 110a has a tensile strength of about 2286 Newton at a strain of about 0.25%. Each of the two or more robust components in the first set of robust component 110a has a tensile strength of about 3369 Newton at a strain of about 0.40%. Each of the two or more robust components in the first set of robust component 110a has a tensile strength of about 4885 Newton at a strain of about 0.60%. In an embodiment of the present disclosure, each of the two or more robust components in the first set of robust component 110a has any suitable value of tensile strength at any value of strain.

[0058] Each of the two or more robust components in the second set of robust component 110b has a tensile strength of about 2286 Newton at a strain of about 0.25%. Each of the two or more robust components in the second set of robust component 110b has a tensile strength of about 3369 Newton at a strain of about 0.40%. Each of the two or more robust components in the second set of robust component 110b has a tensile strength of about 4885 Newton at a strain of about 0.60%. In an embodiment of the present disclosure, each of the two or more robust components in the second set of robust component 110b has any suitable value of tensile strength at any value of strain.

[0059] Going further, the optical waveguide cable 100 may include a filling component. The filling component may be filled around the one or more optical waveguide band 102 in the cylindrical enclosure. In addition, the filling component may be filled around the cylindrical enclosure 104 in the one or more layers 106. In general, the filling component is a compound used to prevent the ingress of moisture or water into the optical waveguide cable 100. The exact nature of the filling component varies depending upon the type of cable and the environment conditions. The filling component is a soft waxy compound or soft gel with a consistency similar to that of thickened oil.

[0060] In an embodiment of the present disclosure, the filling component is a thixotropic gel. In another embodiment of the present disclosure, the filling component is replaced by one or more water swellable tape positioned around the stack of optical waveguide band 102. In yet another embodiment of the present disclosure, the filling component may be replaced by any other type of water blocking elements. All these elements prevent the optical waveguide band 102 from moisture and damage caused from water ingression.

[0061] Further, the optical waveguide cable 100 may include one or more ripcord (not shown in figure) embedded in the one or more layers 106. The one or more ripcord lies substantially along the longitudinal axis 114 of the optical waveguide cable 100. The one or more ripcords facilitate stripping of the one or more layers 106. In an embodiment of the present disclosure, the plurality of ripcords is positioned diametrically opposite to each other. In an embodiment of the present disclosure, the one or more ripcords are made of polyester based twisted yarns. In another embodiment of the present disclosure, the one or more ripcords are made of any other suitable material.

[0062] In an embodiment of the present disclosure, the optical waveguide cable 100 with 144 light transmission element 112, having dry cylindrical enclosure 104 has a diameter of about 15 millimeters. In another embodiment of the present disclosure, the optical waveguide cable 100 has any other suitable diameter. In an embodiment of the present disclosure, the optical waveguide cable 100 with 144 light transmission element 112 has a weight of about 150 kilogram/kilometer. In another embodiment of the present disclosure, the optical waveguide cable 100 has any other suitable weight.

[0063] The foregoing descriptions of pre-defined embodiments of the present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present technology.

Documents

Orders

Section Controller Decision Date

Application Documents

# Name Date
1 201811000534-FORM 1 [05-01-2018(online)].pdf 2018-01-05
1 201811000534-IntimationOfGrant30-04-2024.pdf 2024-04-30
2 201811000534-DRAWINGS [05-01-2018(online)].pdf 2018-01-05
2 201811000534-PatentCertificate30-04-2024.pdf 2024-04-30
3 201811000534-COMPLETE SPECIFICATION [05-01-2018(online)].pdf 2018-01-05
3 201811000534-Annexure [18-04-2024(online)].pdf 2024-04-18
4 201811000534-Written submissions and relevant documents [18-04-2024(online)].pdf 2024-04-18
4 201811000534-FORM-26 [08-01-2018(online)].pdf 2018-01-08
5 201811000534-FORM-26 [03-04-2024(online)].pdf 2024-04-03
5 201811000534-FORM 3 [24-01-2018(online)].pdf 2018-01-24
6 201811000534-ENDORSEMENT BY INVENTORS [24-01-2018(online)].pdf 2018-01-24
6 201811000534-Correspondence to notify the Controller [02-04-2024(online)].pdf 2024-04-02
7 201811000534-US(14)-HearingNotice-(HearingDate-04-04-2024).pdf 2024-03-06
7 201811000534-OTHERS-290118.pdf 2018-02-02
8 201811000534-Form 5-290118.pdf 2018-02-02
8 201811000534-COMPLETE SPECIFICATION [01-12-2022(online)].pdf 2022-12-01
9 201811000534-CORRESPONDENCE [01-12-2022(online)].pdf 2022-12-01
9 abstract.jpg 2018-02-13
10 201811000534-ENDORSEMENT BY INVENTORS [01-12-2022(online)].pdf 2022-12-01
10 201811000534-Proof of Right [10-02-2020(online)].pdf 2020-02-10
11 201811000534-FER_SER_REPLY [01-12-2022(online)].pdf 2022-12-01
11 201811000534-FORM 13 [10-02-2020(online)].pdf 2020-02-10
12 201811000534-AMENDED DOCUMENTS [10-02-2020(online)].pdf 2020-02-10
12 201811000534-FORM-26 [01-12-2022(online)].pdf 2022-12-01
13 201811000534-FORM-26 [11-02-2020(online)].pdf 2020-02-11
13 201811000534-PETITION UNDER RULE 137 [01-12-2022(online)].pdf 2022-12-01
14 201811000534-Proof of Right [01-12-2022(online)].pdf 2022-12-01
14 201811000534-Proof of Right [17-02-2020(online)].pdf 2020-02-17
15 201811000534-Power of Attorney-170220.pdf 2021-10-18
15 201811000534-RELEVANT DOCUMENTS [01-12-2022(online)].pdf 2022-12-01
16 201811000534-OTHERS-170220.pdf 2021-10-18
16 201811000534-Response to office action [01-12-2022(online)].pdf 2022-12-01
17 201811000534-FER.pdf 2022-06-01
17 201811000534-Correspondence-170220.pdf 2021-10-18
18 201811000534-FORM 18 [04-11-2021(online)].pdf 2021-11-04
19 201811000534-Correspondence-170220.pdf 2021-10-18
19 201811000534-FER.pdf 2022-06-01
20 201811000534-OTHERS-170220.pdf 2021-10-18
20 201811000534-Response to office action [01-12-2022(online)].pdf 2022-12-01
21 201811000534-Power of Attorney-170220.pdf 2021-10-18
21 201811000534-RELEVANT DOCUMENTS [01-12-2022(online)].pdf 2022-12-01
22 201811000534-Proof of Right [01-12-2022(online)].pdf 2022-12-01
22 201811000534-Proof of Right [17-02-2020(online)].pdf 2020-02-17
23 201811000534-FORM-26 [11-02-2020(online)].pdf 2020-02-11
23 201811000534-PETITION UNDER RULE 137 [01-12-2022(online)].pdf 2022-12-01
24 201811000534-FORM-26 [01-12-2022(online)].pdf 2022-12-01
24 201811000534-AMENDED DOCUMENTS [10-02-2020(online)].pdf 2020-02-10
25 201811000534-FER_SER_REPLY [01-12-2022(online)].pdf 2022-12-01
25 201811000534-FORM 13 [10-02-2020(online)].pdf 2020-02-10
26 201811000534-ENDORSEMENT BY INVENTORS [01-12-2022(online)].pdf 2022-12-01
26 201811000534-Proof of Right [10-02-2020(online)].pdf 2020-02-10
27 201811000534-CORRESPONDENCE [01-12-2022(online)].pdf 2022-12-01
27 abstract.jpg 2018-02-13
28 201811000534-COMPLETE SPECIFICATION [01-12-2022(online)].pdf 2022-12-01
28 201811000534-Form 5-290118.pdf 2018-02-02
29 201811000534-OTHERS-290118.pdf 2018-02-02
29 201811000534-US(14)-HearingNotice-(HearingDate-04-04-2024).pdf 2024-03-06
30 201811000534-Correspondence to notify the Controller [02-04-2024(online)].pdf 2024-04-02
30 201811000534-ENDORSEMENT BY INVENTORS [24-01-2018(online)].pdf 2018-01-24
31 201811000534-FORM-26 [03-04-2024(online)].pdf 2024-04-03
31 201811000534-FORM 3 [24-01-2018(online)].pdf 2018-01-24
32 201811000534-Written submissions and relevant documents [18-04-2024(online)].pdf 2024-04-18
32 201811000534-FORM-26 [08-01-2018(online)].pdf 2018-01-08
33 201811000534-COMPLETE SPECIFICATION [05-01-2018(online)].pdf 2018-01-05
33 201811000534-Annexure [18-04-2024(online)].pdf 2024-04-18
34 201811000534-PatentCertificate30-04-2024.pdf 2024-04-30
34 201811000534-DRAWINGS [05-01-2018(online)].pdf 2018-01-05
35 201811000534-IntimationOfGrant30-04-2024.pdf 2024-04-30
35 201811000534-FORM 1 [05-01-2018(online)].pdf 2018-01-05

Search Strategy

1 201811000534_SearchE_24-05-2022.pdf

ERegister / Renewals

3rd: 04 Jul 2024

From 05/01/2020 - To 05/01/2021

4th: 04 Jul 2024

From 05/01/2021 - To 05/01/2022

5th: 04 Jul 2024

From 05/01/2022 - To 05/01/2023

6th: 04 Jul 2024

From 05/01/2023 - To 05/01/2024

7th: 04 Jul 2024

From 05/01/2024 - To 05/01/2025

8th: 03 Jan 2025

From 05/01/2025 - To 05/01/2026