The present disclosure relates to a spool for winding optical fibers.
BACKGROUND
[0002] An optical fiberis a thin strand of glass that is used in telecommunications industry for communication purposes. The optical fiberis produced from an optical fiber glass preform. The optical fiber glass preform is melted in a draw tower to obtain bare optical fiber(or the optical fiber) through a complex optical fiber drawing process. Post obtaining the optical fiber, the optical fiber iscoated with a primary coating and a secondary coating to impart strength and flexibility.
[0003] Further, post the drawing and application of coatings (the primary and secondary coatings), the optical fiberis wound on a device called a spool (or bobbin). Many kilometres (kms) of the optical fibermay be wound on the spool. Generally, the spool comprises of a cylindrical barrel and two flanges. The cylindrical barrel is placed between the two flanges facing each other. Each of the two flanges usually have fins on them to mitigate issues like turbulence and vibrations while winding the optical fiber on the spool. Conventionally, the two flanges and the cylindrical barrel need to be assembled to obtain the spool. The spool is usually made from, but not limited to, metal, plastic materials or the like. Conventional spool experiencesseveral issues as length of the optical fiber, that is wound on the spool, increases. The spool gets heavy and vulnerable to deformation as the length of optical fiber, that is wound, increases. Due to the deformation of the spool, optical properties of the optical fiberdegrades. To enhance the strength and to avoid deformation, the spool is designed with metal bodies to endure weight of large length of the optical fiber. However, the conventional spool usually has fins at itsflanges, which is one of the major factor for adding air turbulence and vibration in the spool during an operation of winding the optical fiber. There are several existing spool designs available that mitigate the problems of air turbulence and vibrations. However,these existing spool designs are complexand are difficult to manufacture.Further, the conventional

spool (bobbin)is designed with complex configuration and is not formed as a single piece.
[0004] For example, a prior art reference"WO2017168846Al"disclosesan optical fiber winding bobbin (spool), an optical fiber winding method, and a bobbin wound optical fiber. In the prior art reference, there are thin portions (similar to fins) formed on the outer peripheral portion of the main winding rod of the bobbin to reduce centrifugal force and increase in strength.
[0005] Another prior art reference" WO2015030188Al"teachesa bobbin (spool) having an auxiliary winding body at the end and suitable for winding an optical fiber over the flange from the auxiliary winding body to a main winding part, and the optical fiber wound around the bobbin. In this prior art reference^ hook is provided with an auxiliary drum to guide fibre from winding body to main winding body through a slit thus automate the fibre winding process with high efficiency.
[0006] Yet, another prior art reference"GB 1043527A"relates tobobbins and is particularly concerned with bobbins for use in spinning and twisting. In this prior art reference, there are concentric tubes of aluminium around a cylinder and have annular plugs which has a skirt portions to hold concentric tubes of metal that makes the manufacturing of such bobbins complex.
[0007] In view of the above discussion and prior art references, there remains a need for a spool that is formed or manufactured as a single unit or piece (monolith design) and is durable and mitigates the problems of air turbulence and vibrations without fins on the flanges.
[0008] 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
[0009] A primary object of the present disclosure is to providea spool forwinding an optical fiber, where the spool is made up of a metal.

[0010] Another object of the present disclosure is to provide the spool having a monolith design i.e., single piecespool design that is durable and light-weight.
[0011] Another object of the present disclosure isto provide the spool having no fins at its flanges.
[0012] Another object of the present disclosure is to provide the spool that mitigates issues of air turbulence and vibrations and experience less wear and tear while winding of the optical fiber.
SUMMARY
[0013] In an aspect, a spool for final drawing of an optical fiber is disclosed.The spoolis made of a material which has properties such as low weight, high strength, corrosion resistance and can be easily machined and casted, for example aluminium. The spool is a single piece structure comprising two flat discs (interchangeably termed as "flanges"barrel plates") and a tubular cylinder (interchangeably termed as "barrel") . The two flat discs are present at both axial ends of the tubular cylinder. Each of the two flat discs has a plurality of indents.In between each of the two flat discs, a circular shaft slot is provided. The circular shaft slot runs longitudinally through the tubular cylinder. The circular shaft slot is padded withTeflonbased material. Further,each of the two flat discsincorporatesa pair of angular grooves. Both pairs of angular grooves that are present on the two flat discs are aligned and placed exactly opposite to each other. The pair of angular grooves is present inside aninner circular periphery. A first plurality of holes is present on the inner circular periphery. The inner circular periphery is an imaginary line drawn surrounding the pair of angular grooves as a reference to mark an indentation for the first plurality of holes. Outside the inner circular periphery of the pair of angular grooves, a second plurality of holes is present on an outer circular periphery.The outer circular periphery is an imaginary line drawn as a reference to mark an indentation for the second plurality of holes. The spool has no fins and has the plurality of indents to resist vibrations and air turbulence while winding the optical fiber. The circular shaft slot and the pair of angular

grooves are utilized to mount the spool on a machine to perform the winding of the optical fiber.
[0014] These and other aspects of the embodiments 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, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.
BRIEF DESCRIPTION OF THE FIGURES
[0015] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0016] FIG. 1 illustrates a cross-sectional view of a conventional spool having fins at its trapezoidal flanges.
[0017] FIG. 2 illustrates a perspective view ofa spool for winding an optical fiber, according to the present disclosure.
[0018] FIG. 3 illustrates a cross-sectional front view of the spool.
[0019] FIG. 4 illustrates a cross-sectional view of a tubular cylinder of the spool.
[0020] FIG. 5 illustrates a side view of an outer surface of one of two flat discsof the spool.
[0021] FIG. 6 illustrates a side view of an inner surface of one of the two flat discs of the spool.
[0022] FIG. 6aillustrates a reel length of one of the two flat discs of the spool.
[0023] FIG. 7 illustrates a block diagram of a system for winding the optical fiber on the spool.

[0024] FIG. 8 is a flow-chart illustrating a method for winding the optical fiber on the spool.
[0025] It should be noted that the accompanying figures are intended to present illustrations of exemplary aspects of the present disclosure.These figures are not intended to limit the scope of the present disclosure.lt should also be noted that accompanying figures are not necessarily drawn to scale.

DETAILED DESCRIPTION
[0026] 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.
[0027] 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.
[0028] 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.
[0029] FIG. 1 illustrates a cross-sectional view of a conventional spool 100 made of ABS (Acrylonitrile Butadiene Styrene) that has fins on its trapezoidal flanges. The conventional spool 100 has a low cost of manufacturing offering an increase in vibration while an optical fiber is winding on the spool. The high vibration impacts not only working of a motor but also degrades life of the spool due to formation of cracks after using it for a few months, for example 2-3 months.
[0030] Accordingly, the present disclosure provides a spool for final drawing and winding of an optical fiber. The spool comprises a tubular cylinder (barrel) and two flat discs (flanges). Each of the two flat discs has no fins and is straight in structure that enhances capacity of the spool to wind large lengths of the optical

fiber and reduces air turbulence and vibration in the spool during winding operation of the optical fiber.
[0031] The spool has a monolith design i.e., a single-piece design that imparts long life and less wear and tear to the spool, thereby reducing deterioration of a motor of a machine on which the spool is mounted. Further,the spool is made from metal, preferably, aluminium that imparts high strength, thereby reducing wear and tear during winding operation of the optical fiber.
[0032] Now, simultaneous reference is made to FIG. 2 through FIG. 6a, in which FIG. 2 illustrates a perspective view of a spool200 for winding an optical fiber, according to the present disclosure,FIG. 3 illustrates a cross-sectional front view of the spool 200,FIG. 4 illustrates across-sectional view of a tubular cylinder(barrel)202a of the spool 200,FIG.5 illustrates a side view of an outer surface of one of two flat discs (flanges) 202b of the spool 200,where the two flat discs (flanges) are identical,FIG. 6illustrates a side view of an inner surface of one of the two flat discs (flanges)202b of the spool 200 and FIG. 6a illustrates a reel length of one of the two flat discs (flanges) of the spool.
[0033] The spool 200 may be made from, but not limited to, metals. A metal may be aluminium. Alternatively, the spool may be made of other suitable materials, which is of low weight, high strength, corrosion resistance and can be easily machined and casted into a desired shape. The spool 200 may be characterized by a width A and a width B (as shown in FIG. 3). The width A corresponds to a distance between one outermost edge of the spool to another outermost edge of the spool. The width B corresponds to a distance between inner surfaces of the two flat discs (flanges). The spool may have the width A as 511mm (millimeter) and the width B as 493 mm. The width A and the width B may be as per a machine (optical fiber winding lathe machine) takes up.
[0034] The spool 200 may comprisethe tubular cylinder (barrel) 202a and the two flat discs 202b. The tubular cylinder 202a and the two flat discs 202b may form a single piece frame structure of the spool 200.The tubular cylinder 202a may synonymously be termed as a barrel202a and the two flat discs 202b may synonymously be termed as flanges 202b.

[0035] The tubular cylinder 202a may be defined by a first end and a second end that connects the two flat discs 202b axially (as shown in FIG. 2 and FIG. 3). The tubular cylinder 202a may also be defined by a cylinder or barrel axis XX'.The tubular cylinder 202a (as shown in FIG.4) may be a hollow centre pipe that connects the two flat discs 202b. The tubular cylinder 202amay be characterized by a thickness T. The thickness T of the tubular cylinder 202a may be between 4 mm and 8 mm along a length of the tubular cylinder 202a in order to keep the spool 200 light-weight.If the thickness of the tubular cylinder 202aexceeds8 mm, the samemay lead to an increase in a weight of the spool and an increase in power of the motor, therebydeteriorating the life of the spool, whereas if the thickness of the tubular cylinder 202ais kept below 4mm, then the spool may not have the rigidity to support 1000 kms of the optical fiber. The tubular cylinder 202a may be characterized by a length L. The length L may be 468 mm. Alternatively, the length L may vary. The length of the spool depends on the capacity of the spool and the length 468 mm of the spool has appropriate capacity to wind 1000 kms of the optical fiber. Further, the tubular cylinder 202a may be characterized by an inner diameter Dl and an outer diameter D2. The inner diameter Dl may be 308 mm and the outer diameter D2 may be 320 mm. Alternatively, the inner diameter Dl and the outer diameter D2 may vary.
[0036] The tubular cylinder 202amay be permanently attached or removably attached tothe two flat discs 202b using a plurality offastening means214. The plurality of fastening means 214 may be, for example, but not limited to, dowel pins, split-type dowel pins, bolts. The number of the plurality of fastening means 214 may be eight. Alternatively, number of the plurality of fastening means 214 may vary. Each of the fastening means 214 may be of 8mm. Alternatively, dimension of each of the fastening means 214 may vary.The plurality of fastening means 214 may be circular in shape having threads and may beconnectedtoa circular periphery (as shown in FIG. 4) ofthe tubular cylinder 202a. The threads on the plurality of fastening means 214 may help in clamping the two flat discs 202b and the tubular cylinder 202aaltogether and if during running of the spool 200 any jerkoccurs, then the threads may cancel out shear stress generated due to

the jerk. The threads on the plurality of fastening means 214may undergo uniform distribution of shear stress rather than accumulating at one point, thereby avoiding rupturing. In short, the plurality of fastening means 214 may act as a shock absorber and may have more elasticity due to the presence of the threads.
[0037] One of the two flat discs 202b of the spool 200 is shown in FIG. 5 and FIG. 6. The two flat discs 202bmay be identical. The two flat discs 202b may be present at both axial ends of the tubular cylinder 202a. Each of the two flat discs may be substantially perpendicular to the barrel axis XX' at the first end and the second end of the tubular cylinder 202a.Each of the two flat discs 202b may be formed in such a way that weights of the two flat discs 202b may be uniformly distributed on the tubular cylinder 202a due to which bending of the two flat discs 202b may be avoided and hence, strength of the spool 200 may be improved.
[0038] Each of the two flat discs 202b may be circular in shape and have a peripheral ring region 216 and a central reassessed region 204 (interchangeably be called as a circular shaft slot ), wherein the central reassessed region 204 may have a load element.The load element may be defined by four legs 218a, 218b, 218c, 218d (as shown in FIG. 3) that may be in contact with the peripheral ring region 216. The load element may also be defined by two edge portions opposing each other forming a straight shaft slot 206 between the load element and the peripheral ring region. The load element may have a pair of angular grooves 208 opposing each other.
[0039] In other words, atthe center of each of the two flat discs 202b, the circular shaft slot 204may be provided. The circular shaft slot 204may run longitudinally through the tubular cylinder 202a. The circular shaft slot 204 may be hollow and placed between the pair of angular grooves208. The circular shaft slot 204 present in the middle of each of the two flat discsmay be utilized to mount the spool on a shaft that is present on the machine and the pair of angular grooves may be utilized for avoiding slipping of the spool while the spool performs the operation of winding of the optical fiber. That is, the spool may be maintained on the optical fiber winding lathe machine through the circular shaft slot 204. As the circular shaft slot 204 is a main part that is in connection with the

shaft that rotates, the circular shaft slot 204 may be internally padded witha Teflon based material with a circlipthat may help in avoiding a change of the spool when it gets wear and tear during rotation on the shaft while performing the operation of winding of the optical fiber. A relative motion between the pair of angular grooves 208 and the circular shaft slot 204 may be zero as it acts as a counter mechanism for tension variation and slip generation. Each angular groove from the pair of angular grooves 208, which may be hollow,may be placed facing each other with a predefined distance between them. Bothpairs of angular grooves 208 that are present on the two flat discs respectively are aligned and placed exactly opposite to each other. The pair of angular grooves 208 may be present insidean inner circular periphery 212a of the two flat discs 202b. Each angular groove from the pair of angular grooves 208 may be defined byan inner curve that may have a diameter of 40 mmand an outer curve that may have a diameter of 65 mm.Alternatively, the diameter of the inner curve and the outer curve may vary. The inner curve of the pair of angular grooves may face towards the circular shaft slot 204 and the outer curve of the pair of angular grooves208 may benear the inner circular periphery 212a.
[0040] Further, a first plurality of holes 210a may be present in the inner circular periphery 212a of the two flat discs 202b. The inner circular periphery 212a is an imaginary line surrounding the pair of angular grooves 208 as a reference to mark an indentation for the first plurality of holes 210a. Outside the inner circular periphery, a second plurality of holes 210b may be present on an outer circular periphery 212b of the two flat discs 202b. The outer circular periphery 212b is an imaginary line drawn as a reference to mark an indentation for the second plurality of holes 210b. The outer circular periphery 212b may have a diameter of 335 mm that helps in bolting of the tubular cylinder 202a inside the two flat discs 202b at a thickness of 4 mm in order to properly join/clamp the two flat discs 202b and the tubular cylinder 202a together by ensuring that there is no gap in between the two flat discs 202b and the tubular cylinder 202a and avoiding trapping of the optical fiber in between the two flat discs 202b and the tubular cylinder 202a.Further, the load element forming the

straight shaft slot 206 may be provided on both sides of the circular shaft slot204 surrounded by the peripheral ring region 216 that may increase strength of the spool through uniform distribution of load across the spool. Due to uniform distribution of load, bending of the two flat discs 202b may not occur, thereby improving the life of the spool. Further, as each of the two flat discs 202b may have the straight shaft slot 206 on its surface, the surface may be in direction opposite to the tubular cylinder 202a when it is not connected to the tubular cylinder 202 a.
[0041] Referring to FIG. 6a, each of the two flat discs 202b may be defined by an inner part and an outer part, wherein the inner part may be at an angle 0.5-5 degree to the barrel axis (XX'). Preferably, the two flat discs 202b may be kept thin on the tubular cylinder 202a and theinner part of each of the two flat discs 202b may be kept at an angle (91) of 1.7 degreesto avoid scratching of the optical fiber on the two flat discs 202b while winding of the optical fiber over the spool, that may further ensure avoidance of breaking of the optical fiber. The value of the angle, if increased,may increase the weight of the spool while the value of the angle, if decreased,may result in scratching of the optical fiberon the two flat discs 202b. This may also ensure proper traversing of the optical fiber over the spool even at a high speed due to the distance between the two flat discs 202band the optical fiber at exit end.Further, each of the two flat discs 202b may have a periphery thickness defined by a reel length, wherein the reel length may have at least a taper portion 220 marked as Lr in Fig 6(a).The reel length may be on ends of each of the two flat discs 202b, wherein the reel length is defined as length or circumference when the optical fiber takes one complete round or length over which 1000 kms optical fiber is spooled or wound over the tubular cylinder 202a. The reel length may have an arc. The arcmay be an angular cut on both sides of the reel length.
[0042] The taper portion may have a taper angle (9t) as 45 degrees while an outer taper angle cut (Tac) may be 10.8mm. The taper on moving beyond 45 degrees will make optical fibre to ran out of spool i.e. it will not be spooled over the cylindrical portion i.e. barrel while on moving below 45 degrees optical fibre

will touch rim portion of the flat disc of the two flat discs making fibre traversing improper. The taper angle may be machined on each of the two flat discs 202b on all of its edges imparting uniformity in load distribution.The taper angle is an arc, which is an angular cut of 45 degrees given inside each of the two flat discs 202b when it is connected with the tubular cylinder 202a. The outer taper angle cut over each of the two flat discs 202b may ensuresmooth handling of the spool and for alignment of the spool to the optical fiber winding lathe machine which has a taper angle in inward side over which each of the two flat discs 202b rests.
[0043] Each of the two flat discs 202b may have a runner length (Lr) as 14.1 mm.Above the runner length of 14.1 mm, the optical fiber may run out of the spool while moving below 14.1 mm may impact the proper traversing of the optical fiber because the optical fibermay touch the two flat discs 202b. On top of each of the two flat discs 202b, a cut (C) of 7.8 mm may be provided for better changeover of the spool. If the value of the cut is increased beyond 7.8 mm, a chance of touching of the optical fiber to the two flat discs 202bduring winding of the optical fiber may increase and thereby either breaking the optical fiber or producing scratches on the optical fiber, while moving below the value 7.8 mm may not offer smooth changeover of the spool.
[0044] The two flat discs202bof the spool 200are straight rather than conventional trapezoidal design, leading to increase in space for winding of the optical fiber and thereby increasing capacity of the spool.
[0045] The present disclosure provides various advantages over the prior arts.The spool 200 is made fromaluminium supports long life as the metal aluminium imparts durability and reduces chances of tear and wear and is economical due to decrease in the spool consumption.Unlike conventional spoolsthat require extra cost or machining for assembling and joining of parts to the spool, the spool of the present disclosure is constructed as a monolith i.e.,the whole spool is a one single piece.The spool 200 has no fins on the two flat discs 202b, thereby reducing air turbulence and vibrations on the spool while performing the operation of winding the optical fiber. The air turbulence in fluid dynamics, is a flow regime characterized by chaotic, stochastic property changes.

The vibrations are periodic back-and-forth motion of the particles of an elastic body or medium, commonly resulting when almost any physical system is displaced from its equilibrium condition and allowed to respond to the forces that tend to restore equilibrium. The vibrations incurred by the spool during the operation of winding of the optical fiber leads to wear and tear of bearings of the motor which is connected with the optical fiber winding lathe machine over which winding of the optical fiber on the spool takes place. Also, the vibrations lead to deterioration of the motor, leads to noise and scratches on the optical fiber resulting degradation of the optical fiber quality. Hence, the no-fin design on the two flat discs placed for the purpose of balancing the spool, thereby reducing the chances of vibrations as unbalancing of the spool during the optical fiber winding imparts vibrations into the spool.
[0046] Further, the spool 200 elevates the winding capacity of the optical fiber from 850 kms to 1000 kms. As the spool is a monolith unit made from aluminium, the spool is less vulnerable to wear and tear during the winding operation of the optical fiber. The spool design increases the overall spool consumption from 3 months to 2 years. The spool may withstand at least one of rpm (revolutions per minute) greater than or equal to 3000 and a weight of more than 1500 optical fiber kilometres.
[0047] Due to change in spool material and design, line speed of the draw tower has been increased from 2800 mpm (miles per minute) to 3200-3500 mpm. Further, idle time has been decreased due to increase in the capacity and smooth changeover of the spool takes place. The motor (shown in FIG. 7) draws current at 3 amp in full capacity and maximum of 2.2 amp in the conventional ABS spool, while for the spool 200, the motor draws current at 2.4 amp i.e., an increase in motor efficiency of 10 percent without degrading the motor and without degrading any mechanical parts of the optical fiber winding lathe machine. Further, a weight of the spool may be less than 30 kgs that may be capable of holding the optical fiber weighting up to 75 kgs.In an example, the spool 200 may have the weight in range of 22-23 kg on which spooling of the optical fiber takes place, wherein the weight of the optical fiber may be around 65 kg. So, the total weight after

spooling becomes around 87 kg. Increasing beyond the weight i.e., 22-23 kg may degrade the motor since the motor may require more power for rotation and below the weight i.e., 22-23 kg, the spool as required may not be obtained since the spool is obtained from cast cylinder or through extrusion process. Also, the weight 22-23 kg is appropriate for the motor and existing electrical and mechanical system of the optical fiber winding lathe machine to run at a line speed of 3500 mpm.That is, the spool 200 may have a rigidity to withstand 1000 kms optical fiber at the line speed of 3500 mpm (miles per minute).
[0048] FIG.7illustrates a block diagram of a system 700for winding the optical fiber on the spool200.lt may be noted that in order to explain FIG. 7, references will be made to elements explained in FIG. 2 through FIG. 6a. The spool may be cleaned with a durex paper and water to remove dirt. The spool 200 having the two flat discs 202b and the tubular cylinder 202a may be loaded on a shaft 708 present on an optical fiber winding lathe machine 704 using the circular shaft slot204. The spool 200 may be taken up onto the optical fiber winding lathe machine 704 in inwards direction that may have an inner step to counter centrifugal force due to circular motion of the spool.Further, each of the two flat discs 202b that incorporates the pair of angular grooves208, which are hollow, may be adjusted on to solid grooves positioned on a headstock 706 of the optical fiber winding lathe machine 704. The optical fiber being prepared on a draw tower may be guided by an optical fiber guiding unit 702 and further taken up onto the spool that may be loaded on to the optical fiber winding lather machine. An alignment may be checked before winding of the optical fiber over the spool. The optical fiber may be guided for winding on to the spool by a catcher (not shown) where it may be caught or attached (done manually) on the spool thereby starts winding. The winding of the optical fiber may be performed over the tubular cylinder 202a, where the winding starts from one end of one of the two flat discspresent at the axial end of the tubular cylinder to the other end of flat disc present at another axial end of the tubular cylinder continuously. The shaft 708 may continuously rotate with the use of a motor 710 at a predetermined speed during the winding of the optical fiber on the spool. The predetermined speed at

which the spool is rotating may be maintained through a manual and/or automated command.
[0049] FIG. 8 is a flow-chart 800 illustrating a method for winding the optical fiber over the spool 200.lt may be noted that in order to explain FIG. 8, references will be made to elements explained in FIG. 2 through FIG. 7.
[0050] At step 802, the method includesloading of the spool on to the optical fiber winding lathe machine704.
[0051] At step 804, the method includes receiving of the optical fiber from the draw tower by the optical fiber guiding unit702. The optical fiber guiding unit 702 may guide the optical fiber from the draw tower to the optical fiber winding lathe machine 704.
[0052] At step 806, the method further includes winding of the optical fiber on the spool present on the optical fiber winding lathe machine 704. The optical fiber may be guided for winding on to the spool by a catcher where it may be caught or attached (done manually) on the spool, thereby starts winding on the spool. The winding of the optical fiber may be performed over the tubular cylinder 202a, where the winding starts from one end of one of the two flat discs present at the axial end of the tubular cylinder to the other end of flat disc present at the other axial end of the tubular cylinder continuously. The shaft 708 may continuously rotate with the use of the motor 71 Oat the predetermined speed during the winding of the optical fiber on the spool. The predetermined speed at which the spool is rotating may be maintained through themanual and/or automated command.
[0053] The various actions, acts, blocks, steps, or the like in the flow chart 800 may be performed in the order presented, in a different order or simultaneously. Further, in some implementations, some of the actions, acts, blocks, steps, or the like may be omitted, added, modified, skipped, or the like without departing from the scope of the invention.
[0054] 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.
[0055] 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.
[0056] 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 spool (200) for winding an optical fiber, comprising:
a tubular cylinder (202a) having a first end and a second end, wherein the tubular cylinder (202a) is defined by a barrel axis (XX'); and
two flat discs (202b), each of the two flat discs substantially perpendicular to the cylindrical axis at the first end and the second end of the tubular cylinder (202a), wherein each of the two flat discs (202b) are defined by an inner part and an outer part, wherein the inner part is at an angle 0.5-5 degree to the barrel axis (XX').
2. The spool (200) as claimed in claim 1 further comprising a plurality of fastening means(214) tojointhe two flat discs (202b)and the tubular cylinder (202a) together, wherein the plurality of fastening means (214) has threads to balance shear stress generated due to jerk during running of the spool.
3. The spool (200) as claimed in claim 1,wherein a weight of the spool is less than30 kgs that is capable of holding the opticalfiber weighting upto 75 kgs.
4. The spool (200) as claimed in claim 1, wherein the spool withstands at least one of rpm (revolutions per minute) greater than or equal to 3000 and a weight of more than 1500 optical fiber kilometres.
5. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b)has a periphery thickness defined by a reel length, wherein the reel length has at least a taper portion (220).
6. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b) has a peripheral ring region (216) and a central reassessed region (204),

wherein the central reassessed region has a load element, wherein the load element is defined by four legs (218a, 218b, 218c, 218d) that are in contact with the peripheral ring region.
7. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b) has a peripheral ring region (216) and a central reassessed region (204), wherein the central reassessed region has a load element, wherein the load element is defined by two edge portions opposing each other forming a straight shaft slot (206) between the load element and the peripheral ring region.
8. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b) has a peripheral ring region (216) and a central reassessed region (204), wherein the central reassessed region has a load element, wherein the load element has a pair of angular grooves (208)opposing each other.
9. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b) has a straight shaft slot (206) on its surface, wherein the surface is in direction opposite to the tubular cylinder (202a) when it is not connected to thetubular cylinder (202a), wherein the straight shaft slot ensures uniform distribution of load.

10. The spool (200) as claimed in claim 1, wherein the spool is taken up onto an optical fiber winding lathe machine (704) in inwards direction that has an inner step to counter centrifugal force due to circular motion of the spool.
11. The spool (200) as claimed in claim 1, wherein an outer taper angle cut over each of the two flat discs (202b) ensures smooth handling of the spool and for alignment of the spool to anoptical fiber winding lathe machine (704) which has a taper angle in inward side over which each of the two flat discs (202b)rests.

12. The spool (200) as claimed in claim 1, wherein a taper angle is machined on each of the two flat discs (202b)on all of its edges imparting uniformity in load distribution.
13. The spool (200) as claimed in claim 1, wherein a reel length is on ends of each of the two flat discs (202b), wherein the reel length is defined as length or circumference when the optical fibertakesone complete round or length over which lOOOkmsoptical fiber is spooled or wound over the tubular cylinder (202a), wherein an arc is an angular cut on both sides of the reel length.
14. The spool (200) as claimed in claim 1, wherein a thickness of the tubular cylinder (202a) is between 4 mm and 8 mm.
15. The spool (200) as claimed in claim 1, wherein each of the two flat discs (202b) has a circular shaft slot (204) and a pair of angular grooves (208).
16. The spool (200) as claimed in claim 15, wherein the circular shaft slot (204) is hollow and the spool is maintained on anoptical fiber winding lathe machine (704) through the circular shaft slot (204), wherein the pair of angular grooves (208) is hollow.
17. The spool (200) as claimed in claim 15,wherein an inner curve of the pair of angular grooves (208)has a diameter of 40mm and an outer curve has a diameter of 65mm,wherein the inner curve of the pair of angular grooves faces towards the circular shaft slot (204) and the outer curve of the pair of angular grooves (208) is near an inner circular periphery (212a).
18. The spool (200) as claimed in claim 15, wherein a relative motion between the circular shaft slot (204) and a pair of angular grooves (208) is zero.