The present disclosure relates to optical communication networks, and in particular, relates to a rapid optical fiber link restoration solution.
BACKGROUND
[0002] An optical fiber network finds its presence in every region across the globe. The optical fiber network supports world-wide communication systems and ensures uninterrupted services related to voice calls, internet and the like. Optical fiber cables are the foundation for the optical fiber networks and link one optical fiber network to another optical fiber network. The optical fiber cables comprise optical transmission elements, i.e., optical fibers, that are responsible for linking the optical fiber networks. However, often times the optical fiber cables get damaged or cut leading to disruption of optical fiber links. The damage may be instilled by a human activity or by a natural disaster. Repair work takes time and increases downtime of the optical fiber network. In remote regions, the magnitude of the repair work is very large and complex. Measures can be taken to resume the optical fiber links, like a replacement optical fiber cable may be installed to establish the optical fiber link to restore and resume the optical fiber network temporarily and reduce the downtime. Today, optical fiber networks are ubiquitous and have become an important part of our life for digital data transfer. The loss of connectivity may also lead to catastrophic situations e.g. in airports, railway and defence operations, therefore, a quick restoration of the optical connectivity link is necessary as a longer downtime may lead to delay in data transfer in the affected area. A conventional optical fiber cable requires on-field splicing of the optical fibers which is a time consuming process and can delay the connectivity restoration. Further, the replacement solution needs to withstand harsh environment conditions like sub-zero temperature, rain, flooding, debris etc. as a damaged site can be present anywhere or in any type of terrain and/or the conditions may not be favourable for a desired cable deployment path. A conventional unitube optical fiber cable with metallic armouring is used for underground, on-ground, duct applications only and a conventional unitube optical fiber cable with dielectric armouring is used for aerial (up to 10 m), underground

with duct applications only. During the optical connectivity restoration during a disaster or an emergency situation such as earthquake, flood, cyclone, etc., a favourable cable deployment path may not be available, therefore, there exists a need for an optical fiber cable which can be deployed via any possible route e.g. underground, on-ground, aerial (more than 10m) and duct applications without worrying about compatibility of the optical fiber cable. Further, all the conventional dielectric optical fiber cables are not suitable to be used for outdoor connectivity recovery applications as they do not possess sufficient mechanical strength e.g. tensile strength and crush resistance to facilitate hanging of the optical fiber cable (more than 10 m) and to bear compression load e.g. passing of a small vehicle or accumulation of debris above the optical fiber cable. Also, design of the replacement optical fiber cable should be compatible with different installation techniques like aerial installation, blowing, jetting and pulling. Apart from the optical fiber cable with above desired characteristics, connectors should also have applicability in various environments. During an emergency or disaster situation, rapid connectivity resumption is of utmost priority, therefore, a solution is needed that is robust, versatile and helps to restore connectivity in minimum possible time.
[0003] For example, a prior art reference "US2008273845A1" discloses an optical fiber drop cable that is suitable for both indoor and outdoor applications. It talks about pre-connectorized cable ends for rapid installation. Similarly, another prior art reference "JPH0616905U" teaches an optical fiber cable having connectorized ends that may be used for emergency solution for restoring damaged networks.
[0004] However, the above mentioned conventional solutions do not provide a damaged optical network restoration solution that is robust for deployment in versatile and harsh conditions.
[0005] In light of the above-stated discussion and prior art references, there exists a need for an optical fiber cable that can be used as a replacement cable for rapid optical fiber link restoration and offers deployment in any available conditions and routes.

[0006] Any references to methods, apparatus or documents of the prior art are not to be taken as constituting any evidence or admission that they formed, or form part of the common general knowledge.
OBJECT OF THE DISCLOSURE
[0007] A primary object of the present disclosure is to provide a rapid optical fiber link restoration solution.
[0008] Another object of the present disclosure is to provide a robust and versatile deployable solution specially for disaster affected situations or emergency situations.
[0009] Another object of the present disclosure is to provide a pre-connectorized replacement cable solution that has dielectric capabilities, water resistant and has high tensile and crush resistance for use in harsh environments.
SUMMARY
[0010] In an aspect, the present disclosure provides a rapid optical fiber link restoration solution that comprises an optical fiber cable having a plurality of optical transmission elements. The optical fiber cable is pre-connectorized by an optical fiber connector and is dielectric and has a tensile strength of at least 2500N and a crush resistance of at least 2000N/100mm. The optical fiber connector is water resistant for 1.5 meters of water-head for a maximum period of 30 minutes, thereby allowing restoration of an optical fiber link without on-field splicing and deployable in aerial, on-ground, underground or inside duct applications. The optical fiber connector is a multi-fiber connector having plug-and-play capabilities and a plurality of single-fiber connectors for rapid connectivity. The optical fiber cable comprises one of a water blocking gel or water swellable yarns or a water ingression prevention material that is suitable to provide water ingression resistance for 3 m sample of the optical fiber cable up to 24 hours in a 2 m water-head. The optical fiber cable is suitable to be deployed by pulling, blowing, jetting or hanging. An operating service environment of pre-connectorized connectors may be indoor controlled environment, outdoor aerial environment, outdoor ground level environment, outdoor subterranean or sub-

surface environment. A plurality of optical fiber cables may be joined using pre-connectorized male/female optical fiber connectors. The rapid optical fiber link restoration solution restores an optical fiber network (or optical network) in case of failure or damage of an optical fiber link in the optical fiber network.
[0011] These and other aspects herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the invention herein without departing from the spirit thereof.
BRIEF DESCRIPTION OF FIGURE
[0012] The invention is illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the drawings. The invention herein will be better understood from the following description with reference to the drawings, in which:
[0013] FIG. 1 illustrates a rapid optical fiber link restoration solution comprising an optical fiber cable with a multi-fiber connector pre-installed at both ends of the optical fiber cable.
[0014] FIG. 2 illustrates the rapid optical fiber link restoration solution comprising an optical fiber cable with a multi-fiber connector pre-installed at one end of the optical fiber cable and a single-fiber connector arrangement at another end of the optical fiber cable.
[0015] FIG. 3 and FIG. 4 illustrate a cross sectional view of the optical fiber cable.
[0016] FIG. 5 depicts an exemplary deployment using underground, on-ground, aerial combinations of optical fiber cables.
[0017] It should be noted that the accompanying figures are intended to present illustrations of few examples of the present disclosure. The 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
[0018] In the following detailed description of the invention, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be obvious to a person skilled in the art that the invention may be practiced with or without these specific details. In other instances, well known methods, procedures and components have not been described in details so as not to unnecessarily obscure aspects of the invention.
[0019] Furthermore, it will be clear that the invention is not limited to these alternatives only. Numerous modifications, changes, variations, substitutions and equivalents will be apparent to those skilled in the art, without parting from the scope of the invention.
[0020] The accompanying drawings are used to help easily understand various technical features and it should be understood that the alternatives presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any alterations, equivalents and substitutes in addition to those which are particularly set out in the accompanying drawings. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are generally only used to distinguish one element from another.
[0021] Unlike conventional optical fiber link restoration solutions, the present disclosure provides a rapid optical fiber link restoration solution for restoration of an optical fiber network link that uses an optical fiber cable that is pre-connectorized at both ends. The optical fiber cable is dielectric, water resistant, bend insensitive and having high tensile strength and high crush resistance that enable the optical fiber cable to be robust and versatile, and usable in harsh and varied environments. The rapid optical fiber link restoration solution may be used as a temporary solution and can be installed at a damaged site that is damaged due to a natural disaster or human activity to reduce maintenance downtime and rapidly restoring optical fiber links. The rapid optical fiber link restoration solution is a plug and play pre-connectorized cable and requires no on-field splicing. Upon completion

of the repair tasks at the damaged site, the rapid optical fiber link restoration solution can be removed and wound back on a drum (or drum barrel) for future use.
[0022] FIG. 1 illustrates a rapid optical fiber link restoration solution 100 comprising an optical fiber cable 104 and optical fiber connectors 102 pre-installed at both ends of the optical fiber cable. The optical fiber connectors 102 installed at both ends (end-points) of the optical fiber cable are plug and play connectors, enabling the rapid optical fiber link restoration solution 100 to easily and rapidly connect two points in an optical network without the need of on-field splicing. In an example, the optical fiber connectors are multi-fiber connectors. The multi-fiber connectors are primary multiple fiber connectors for high-speed telecom and data communications networks. Multiple pieces/segments of the optical fiber cable can be rapidly connected through the multi-fiber connectors to obtain a desired length. The multi-fiber connectors may be male connector or a female connector. The optical fiber connectors 102 are water resistant having resistance for 1.5 meters of water-head for a maximum of 30 minutes. Further, the optical fiber connectors 102 may have IP68 rating for water/dust proofing. Advantageously, the pre-connectorized ends can be used as plug-and-play devices for rapid connection, whereby the pre-connectorized optical fiber cable only needs to be connected in order to be configured to work perfectly. Thus, the installation of the rapid optical fiber link restoration solution 100 requires no on-field splicing.
[0023] FIG. 2 illustrates the rapid optical fiber link restoration solution 100 comprising the optical fiber cable 104 with the multi-fiber connector 102 connected at one end of the optical fiber cable 104 and a plurality of single-fiber connectors 106 at another end of the optical fiber cable 104. That is, the end-points of the optical fiber cable 104 are terminated with the pre-connectorized single-fiber connectors 106 to connect with fiber management systems. The optical fiber connectors of FIG. 2 include similar features (water resistance) as the optical fiber connectors of FIG. 1. The optical fiber connectors 102 and the plurality of single-fiber connectors 106 may be referred to as a fan-out connector assembly. The plurality of single-fiber connectors 106 may form a fan-out arrangement. The plurality of fan-out connectors 106 may be a lucent connector (LC), a snap-in connector (SC) or any other suitable

type and combination of connectors. In general, the LC is a small form factor connector that uses a 1.25 mm ferrule, employs a latch and easily terminated with any adhesive. The SC is a push-pull connector that utilizes a locking tab.
[0024] The plurality of fan-out connectors enables connection of the rapid optical fiber link restoration solution 100 into fiber management systems/devices and each optical fiber is singularly fanned-out or connectorized.
[0025] FIG. 3 and FIG. 4 illustrate a cross sectional view of the optical fiber cable 104 to be used in the rapid optical fiber link restoration solution 100. The optical fiber cable 104 may be reusable for different disaster affected optical networks. The optical fiber cable 104 comprises a core having a plurality of optical transmission elements 104e encapsulated in a tube 104c. The plurality of optical transmission elements 104e presents in a form of, but not limited to, a plurality of optical fibers, a group of loose optical fibers, a group of optical fiber ribbons or a stack of optical fiber ribbons, a group of bendable ribbons, a group of corrugated ribbons, a group of intermittently bonded optical fiber ribbons.
[0026] Generally, an optical fiber refers to a medium associated with transmission of information over long distances in the form of light pulses. The optical fiber uses light to transmit voice and data communications over long distances when encapsulated in a jacket/sheath. The optical fibers may be single mode optical fibers. The single mode optical fibers carry only a single mode of light to propagate. In an example, the single mode optical fibers may be bend insensitive fibers. The bend insensitive fibers have less degradation in optical properties during bending of the optical fiber cable. As deployment after a disaster may involve repetitive bending of the optical fiber cable, the bend insensitive fibers help maintaining the optical properties of the optical fiber cable. For example, ITU-T G.657. A2, ITU-T G.657.A1 fiber complying to G.652D for an MFD (mode field diameter that is a measure of width of an irradiance distribution, i.e., optical power per unit area, across end face of a single mode fiber) or any other bend insensitive optical fiber. The ITU-T, stands for International Telecommunication Union-Telecommunication Standardization Sector, is one of the three sectors of the ITU. The ITU is the United Nations specialized agency in the field of telecommunications and is responsible for studying

technical, operating and tariff questions and issuing recommendations on them with a view to standardizing telecommunications on a worldwide basis.
[0027] Further, the optical fibers may be single-core optical fibers, multicore optical fibers, single-mode optical fibers, multimode optical fibers or the like. The multimode optical fibers carry multiple modes of light to propagate as opposed to the single-mode fibers carrying only one mode of light to propagate. The multicore optical fibers comprise multiple cores as opposed to the single-core optical fibers that comprise only a single core.
[0028] The core of the optical fiber cable comprises of a monotube/unitube e.g. a single buffer tube or a loose tube containing optical transmission elements. A buffer tube is used in an optical fiber cable to provide mechanical isolation and protection to the optical transmission elements from physical damages. Further, an optical fiber ribbon bundle is a group of a plurality of optical fiber ribbons arranged together. The optical fiber ribbon includes a number of optical fibers arranged together using a matrix material. Multiple individual optical fiber ribbons are stacked or grouped into a bundle to form the optical fiber ribbon bundle. An intermittently bonded optical fiber ribbon from the group of intermittently bonded optical fiber ribbons is formed by intermittently bonding the plurality of optical fibers with the matrix material that imparts a bending and rolling capability along a width of the intermittently bonded optical fiber ribbon.
[0029] Referring to FIG. 3, the optical fiber cable has the core formed by the tube 104c encapsulating the group of optical fiber ribbons 104d having the plurality of optical fibers 104e surrounded by a water blocking gel 104f. Alternatively, the core may comprise of water swellable yarns or a water ingression prevention material such as tape or the like.
[0030] Similarly, referring to FIG. 4, the optical fiber cable has the core formed by the tube 104c encapsulating the plurality of loose optical fibers 104e and the water blocking gel 104f Alternatively, the core may comprise of water swellable yarns or a water ingression prevention material such as tape or the like.
[0031] Referring to FIG. 3 and FIG. 4, the water blocking gel or water swellable yarns or water ingression prevention material provides water ingression

resistance for 3m (meter) sample of the optical fiber cable up to 24 hours in a 2m water-head. The tube 104c may be a loose tube, a unitube, a monotube or the like. The tube 104c is made up of, but not limited to, PBT (polybutylene terephthalate), polypropylene (PP), polyamide, thermoplastic material or a combination of any of suitable material. In an example, the tube 104c may comprise up to 144 optical fibers as outdoor optical fiber cables normally contain optical fibers up to 144.
[0032] The core is surrounded by a dielectric armouring (or a dielectric armouring layer) 104b. The dielectric armouring layer may be made from a plurality of strength members. The plurality of strength members may be made of, but not limited to, FRP (Fiber Reinforced Plastic), ARP (Aramid Reinforced Plastic) or any other suitable dielectric/strength material. The plurality of strength members is arranged around the core, wherein each strength member is in contact with the tube (preferably unitube) and the adjacent strength member(s).
[0033] The dielectric armouring 104b, i.e., the plurality of strength members, is arranged helically around the tube 104c (i.e., around the core). The helical arrangement of the plurality of strength members provides an additional length of dielectric armouring (strength layer) as compared to if it was placed longitudinally which helps to reduce stress on the dielectric armouring (strength layer) during bending operations. The dielectric armouring enables the optical fiber cable 104 to be used nearby a high voltage cable as armouring of metal wires are prone to lightning strikes and electromagnetic effects from a nearby high voltage line. The dielectric armouring 104b formed by the plurality of strength members may have a round shape, a flat shape or any other suitable shape.
[0034] Number of strength members to be arranged around the tube 104c is calculated for a round figure of strength members that will occupy at least 90% space when kept in a circumscribing fashion around the tube as below 90% occupancy of the plurality of strength members, there may be a large gap in between the strength members and thus, uniformity of the dielectric armouring may not be achieved.
[0035] The plurality of strength members in the dielectric armouring 104b has a diameter in a range of 1 mm (millimetre) to 1.2 mm. The plurality of strength members may have optimized dimensions to meet criteria for the optical fiber cable

designed for fiber count up to 144. The plurality of strength members may be coated with EAA (Ethylene Acrylic Acid) or EVA (Ethylene-Vinyl Acetate) coating for better adhesion with a sheath (or jacket) 104a, to enhance the adhesion of the plurality of strength members with the sheath. The plurality of strength members is surrounded by the sheath 104a. The plurality of strength members may be partially or fully embedded in the sheath 104a.
[0036] The dielectric armouring 104b formed by the plurality of strength members imparts a high tensile strength to the optical fiber cable. Tensile strength is a measurement of a force required to pull something such as rope, wire, cable or a structural beam to a point where it breaks. Because of the high tensile strength, the optical fiber cable can be used in aerial optical networks and can sustain hanging for a desired span length. In an example, the tensile strength of the optical fiber cable 104 is at least 2500N that enables the optical fiber cable to be hung for a span length ranging between 30m to 40m. The high tensile strength allows the optical fiber cable to be hanged for sufficient length where conditions are not suitable for laying the optical fiber cable on ground after a disaster. If the tensile strength is below 2500, the optical fiber cable may not be suitable for hanging for the span length of more than 30m. Further, the high tensile strength makes the optical fiber cable usable for deploying by pulling, blowing/jetting or hanging, the method may be chosen based on the equipment availability and convenience at the time of disaster or an emergency situation. In general, optical fiber cable pulling is a process where optical fiber cable installation is carried out into a pre-installed underground ducts/pipes by manual pulling or by a puller machine. The optical fiber cable installation by using a high speed air flow combined with an additional mechanical pushing force is called as blowing or jetting.
[0037] As previously mentioned, the sheath 104a is extruded over the plurality of strength members i.e., the dielectric armouring 104b. Usually, sheathing (extrusion) is done at a high temperature (more than 100°C). The sheathing is a process of squeezing a sheathing material through a funnel of a die as the core runs through the center. The sheathing material for the sheath may include, but not limited to, polyvinylchloride, polyethylene (such as High Density Poly Ethylene (HDPE),

Medium Density Poly Ethylene, and Low Density Poly Ethylene), polyurethane, thermoplastic rubber/elastomer, thermoplastic chlorinated polyethylene or a combination thereof.
[0038] The sheath 104a and the dielectric armouring 104b formed by the plurality of strength members impart high crush resistance to the optical fiber cable. Crush resistance testing involves measurement of a compressive load to a point when a sample such as the optical fiber cable, deforms, fractures, shatters or collapses. The optical fiber cable 104 may be laid on-ground, underground or inside a duct. In this scenario, the optical fiber cable must have sufficient crush resistance to withstand the compressive load that may occur due to a movement over it or by any other means that transmits load to the optical fiber cable 104. The optical fiber cable 104 has the crush resistance of at least 2000N/100mm and preferably in a range of 2000N/100mm to 4000N/100mm. This crush resistance is sufficient to withstand passing of pedestrians, small vehicles etc. over a buried or laid optical fiber cable. If the crush resistance is below 2000N/100mm, then the optical fiber cable may get physically damaged if a heavy load passes over it. If the crush resistance is above 4000N/100mm, the optical fiber cable may get bulky and too stiff to handle.
[0039] The sheath 104a has a thickness of at least 1.3mm to make the optical fiber cable low bend sensitive by reducing a fatigue induced in the optical fiber cable during bending. Below the thickness of 1.3mm, the sheath may become mechanically weak to withstand surrounding conditions during an emergency situation such as natural disaster and may have poor fatigue performance which may lead to fractures in the optical fiber cable. An optimized thickness above 1.3mm may be derived for the optical fiber cable depending upon fiber count, dielectric layer and/or core diameter.
[0040] The optical fiber cable 104 may have one or more rip cords 104g for easy stripping of the sheath 104a to easily access the plurality of optical transmission elements. The optical fiber cable can be wound on a drum with a diameter of 40 times an outer diameter of the optical fiber cable. The minimum bend diameter of the cable is 40 times the outer diameter of the optical fiber cable, thereby, the drum diameter is kept as 40 times the outer diameter of the optical fiber cable. The drum diameter

of more than 40 times the outer diameter of the optical fiber cable will increase the size of the drum.
[0041] Advantageously, the rapid optical fiber link restoration solution 100 may be rapidly deployable and no on-field splicing is needed. The rapid optical fiber link restoration solution may be deployed in aerial optical networks, on ground optical networks, underground optical networks and in duct optical networks or the like. The rapid optical fiber link restoration solution is dielectric thereby is less prone to lightning strikes and can be installed near high voltage lines. The optical fiber cable and the connector is water resistant. As the optical fiber cable may be deployed aerially, on-ground, underground, it has sufficient water protection from moisture, rain, water on ground or underground. The optical fiber cable has sufficient tensile strength for aerial deployment up to 30 to 40 meters length and crush resistance to bear the load for on-ground, under-ground deployment. Additionally, the optical fiber cable is compatible with different installation techniques like aerial installation, blowing, jetting and pulling. These features make the provided optical link restoration solution fast, robust and versatile. FIG. 5 depicts an exemplary deployment 200 using underground, on-ground, aerial combinations of optical fiber cables (i.e., a plurality of optical fiber cables) e.g., a first intermediate cable segment may be deployed aerially, a second segment may be deployed underground and an end segments may be deployed on-ground. Intermediate cable segments of the optical fiber link are joined using male-female combinations of the multi-fiber connectors 102 to obtain a desired length of the optical link and the end segments are connected using single-fiber connectors 106 to restore the connectivity at the fiber management systems. All the connectors in the optical link 200 are pre-connectorized and have plug-and-play use capability for rapid connectivity without the need of on-field splicing. Further, the replacement optical fiber cable is suitable to withstand environmental conditions like sub-zero temperature, rain, flooding, debris etc. as a damaged site can be present anywhere or in any type of terrain. The plurality of optical fiber cables is connected with the multi-fiber connectors (male-female) 102 forming intermediate links and the plurality of single-fiber connectors 106 at both ends of the plurality of optical fiber cables. Further, an operating service environment

of pre-connectorized connectors may be indoor controlled environment, outdoor aerial environment, outdoor ground level environment, outdoor subterranean or sub-surface environment which makes the optical fiber cable suitable to be deployed in any available condition.
[0042] It will be apparent to those skilled in the art that other alternatives of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention. While the foregoing written description of the invention enables one of ordinary skill to make and use what is considered presently to be the best mode thereof, those of ordinary skill will understand and appreciate the existence of variations, combinations, and equivalents of the specific aspect, method, and examples herein. The invention should therefore not be limited by the above described alternative, method, and examples, but by all aspects and methods within the scope of the invention. It is intended that the specification and examples be considered as exemplary, with the true scope of the invention being indicated by the claims.
[0043] Conditional language used herein, such as, among others, "can," "may," "might," "may," "e.g.," and the like, unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain alternatives include, while other alternatives do not include, certain features, elements and/or steps. Thus, such conditional language is not generally intended to imply that features, elements and/or steps are in any way required for one or more alternatives or that one or more alternatives necessarily include logic for deciding, with or without other input or prompting, whether these features, elements and/or steps are included or are to be performed in any particular alternative. The terms "comprising," "including," "having," and the like are synonymous and are used inclusively, in an open-ended fashion, and do not exclude additional elements, features, acts, operations, and so forth. Also, the term "or" is used in its inclusive sense (and not in its exclusive sense) so that when used, for example, to connect a list of elements, the term "or" means one, some, or all of the elements in the list.
[0044] Disjunctive language such as the phrase "at least one of X, Y, Z," unless specifically stated otherwise, is otherwise understood with the context as used

in general to present that an item, term, etc., may be either X, Y, or Z, or any combination thereof (e.g., X, Y, and/or Z). Thus, such disjunctive language is not generally intended to, and should not, imply that certain alternatives require at least one of X, at least one of Y, or at least one of Z to each be present.
[0045] While the detailed description has shown, described, and pointed out novel features as applied to various alternatives, it can be understood that various omissions, substitutions, and changes in the form and details of the devices or algorithms illustrated can be made without departing from the scope of the disclosure. As can be recognized, certain alternatives described herein can be embodied within a form that does not provide all of the features and benefits set forth herein, as some features can be used or practiced separately from others.

CLAIMS
We Claim:

1. A rapid optical fiber link restoration solution (100), comprising:
an optical fiber cable (104) with a plurality of optical transmission elements (104e), wherein the optical fiber cable (104) is pre-connectorized by an optical fiber connector (102, 106), wherein the optical fiber cable (104) is dielectric and has a tensile strength of at least 2500N, wherein the optical fiber connector (102, 106) is water resistant for 1.5 meters of water-head for a maximum period of 30 minutes,
thereby making the optical fiber cable suitable to be deployed by pulling, blowing, jetting or hanging, and deployable in aerial, on-ground, underground or inside a duct, further allowing restoration of an optical fiber link without on-field splicing.
2. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein the optical fiber cable (104) has a crush resistance of at least 2000N/100mm.
3. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein a plurality of optical fiber cables is joined using pre-connectorized male-female combinations of multi-fiber connectors 102.
4. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein end points are terminated with pre-connectorized single-fiber connectors (106) to connect with fiber management systems.
5. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein the optical fiber cable (104) is a unitube design with dielectric armouring surrounding a core of the optical fiber cable (104).

6. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein the optical fiber cable (104) has one of a water blocking gel, water swellable yarns and a water ingression prevention material such that water ingression resistance for 3 meters sample of the optical fiber cable up to 24 hours in a 2 meters water-head is provided.
7. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein the dielectric armouring of the optical fiber cable (104) comprise of a plurality of strength members, made from FRP (Fiber Reinforced Plastic) or ARP (Aramid Reinforced Plastic), with at least 90% space occupancy around the unitube of the optical fiber cable (104).
8. The rapid optical fiber link restoration solution (100) as claimed in claim 1, wherein an operating service environment of pre-connectorized connectors may be indoor controlled environment, outdoor aerial environment, outdoor ground level environment, outdoor subterranean or sub-surface environment.