CN115327700B - Method for arranging optical fiber and method for manufacturing optical fiber component - Google Patents
Method for arranging optical fiber and method for manufacturing optical fiber component Download PDFInfo
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- CN115327700B CN115327700B CN202211102446.6A CN202211102446A CN115327700B CN 115327700 B CN115327700 B CN 115327700B CN 202211102446 A CN202211102446 A CN 202211102446A CN 115327700 B CN115327700 B CN 115327700B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention relates to a method for arranging optical fiber and a method for preparing optical fiber components. The arrangement method comprises the following steps: 1) Drawing the multifilament rod for N times to obtain N multifilament rods, wherein N is an integer greater than or equal to 1; 2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments; 3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement is to put untagged N multifilaments in a mold without distinguishing the directions, and put the tagged N multifilaments in the mold so that the tags face the same direction. The technical problem to be solved is how to digest and apply the multifilament with certain defects, so that the quality of the optical fiber yarn prepared by the multifilament is not affected, the material waste during the waste of unqualified products can be greatly reduced, and the optical fiber component with qualified performance can be obtained, thereby being more practical.
Description
Technical Field
The invention belongs to the technical field of optical fiber manufacturing, and particularly relates to an arrangement method of optical fiber wires and a preparation method of optical fiber components.
Background
In the prior art, the preparation of optical fiber components generally includes drawing of optical fiber monofilaments, primary multifilaments, secondary multifilaments, and the like. In the process of drawing optical fibers for multiple times, the opposite side sizes of the optical fiber filaments are often unequal, or defects such as filament bending, filament twisting and the like exist on the surfaces of the optical fiber filaments. If the optical fiber filaments having the defects are also arranged during the arrangement of the multifilament rod, the internal structure of the subsequent optical fiber filaments is often greatly affected, and the internal quality of the optical fiber component is further affected. However, if the inspection finds that the optical fiber is about to be discarded when the defects are present, a great cost waste is caused.
Disclosure of Invention
The invention aims to provide an arrangement method of optical fiber and a preparation method of optical fiber components, which aims to solve the technical problems of digesting and applying multifilament with certain defects, so that the quality of the optical fiber prepared by the multifilament is not affected, the material waste during the waste of unqualified products can be greatly reduced, and the optical fiber components with qualified performances can be obtained, thereby being more applicable to practical use.
The aim and the technical problems of the invention are realized by adopting the following technical proposal. The arrangement method of the optical fiber provided by the invention comprises the following steps:
1) Drawing the multifilament rod for N times to obtain N multifilament rods, wherein N is an integer greater than or equal to 1;
2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;
3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement is to put untagged N multifilaments in a mold without distinguishing the directions, and put the tagged N multifilaments in the mold so that the tags face the same direction.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
Preferably, the foregoing arrangement method, wherein said examining comprises measuring the distance between each set of opposite sides of each of the N multifilaments, and measuring the surface condition of each of said N multifilaments.
Preferably, the aforementioned arrangement method, wherein the measuring the distance between each set of opposite sides of the N multifilaments is performed using an instrument having a measuring accuracy of 0.001 mm; alternatively, the surface condition of each of the N multifilaments is measured under light illumination in a hundred-class dust-free environment.
Preferably, the foregoing arrangement wherein the acceptable criterion for defect comprises a difference between the measured distance between each set of opposite sides and the standard distance between each set of opposite sides of between 0.005mm and 0.03mm.
Preferably, the foregoing arrangement method wherein the criterion for acceptable defect includes that the surface of the N multifilaments has a degree of filament bending of 3mm or less; the detection method of the wire bending comprises the following steps: placing the N multifilament yarns on a flat plane, and adjusting the cross light source to enable two ends of the N multifilament yarns to be positioned on one linear light source; if the whole of the N multifilaments is not overlapped with the linear light source, indicating that the N multifilaments have filament bending; the distance between the midpoint of the N multifilaments and the linear light source indicates the degree of filament bending.
Preferably, the aforementioned arrangement method, wherein the criterion for acceptable defect comprises the presence of a twist on the surface of the N multifilaments and the degree of twist is between 5 ° and 10 °; the detection method of the thread twist comprises the following steps: placing the N multifilaments and the standard yarn on the same plane, wherein the N multifilaments are adjacently arranged with one end of the standard yarn, and the angle difference between the N multifilaments and the other end of the standard yarn represents the degree of yarn torsion; the angle difference is equal to or more than 5 degrees and is the screw torque; the angle difference is 5-10 degrees, which is acceptable for the defect of thread twist.
Preferably, in the aforementioned arrangement method, the marking is performed on one end of the N multifilaments as a symbol on the side where the N multifilaments have defects.
Preferably, in the foregoing arrangement method, the marking is performed at one end of the N multifilaments to form a slope at one end of the N multifilaments; the ribs formed by the inclined surfaces and the defective side surfaces are perpendicular to the axis of the N multifilaments.
The aim of the invention and the technical problems are also achieved by adopting the following technical proposal. According to the method for preparing the optical fiber component, provided by the invention, the method comprises the steps of arranging multifilament once, and arranging the multifilament for N times; wherein N is an integer greater than or equal to 1; the N multifilament arranging steps are as follows:
1) Drawing the multifilament rod for N times to obtain N multifilament;
2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;
3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement is to put untagged N multifilaments in a mold without distinguishing the directions, and put the tagged N multifilaments in the mold so that the tags face the same direction.
The aim and the technical problems of the invention can be further realized by adopting the following technical measures.
Preferably, the method for manufacturing the optical fiber component includes at least one of an optical fiber inverter, an optical fiber panel and an optical fiber taper.
By means of the technical scheme, the arrangement method of the optical fiber and the preparation method of the optical fiber component provided by the invention have at least the following advantages:
the method for arranging the optical fiber provided by the invention can achieve the product quality of defect-free multifilaments by marking the multifilaments with certain defects but small defect degree and arranging the multifilaments in a multifilament rod in a certain mode, thereby greatly reducing the cost waste generated by taking the multifilaments as waste filaments. In the technical scheme of the invention, marks are made on specific positions of N multifilaments with defects (the defects do not reach the qualification standard, but can reach the relaxation standard), so that operators can accurately identify the positions and directions of the defects, and when the N multifilaments are arranged in an N+1 multifilament rod, all the surfaces with the defects are arranged towards the same direction; the reason why the arrangement method is capable of producing a satisfactory product is that when the defective surfaces are arranged in the same direction, the adjacent N multifilament rods do not have defects in which the defective surfaces are directly abutted against the defective surfaces, and therefore all the N multifilament rods can be perfectly welded into one body in the n+1 multifilament rod drawing process, and defects in which the defective surfaces are directly abutted against the defective surfaces and the N multifilament rods are difficult to weld into one body are avoided.
The foregoing description is only an overview of the present invention, and is intended to provide a more thorough understanding of the present invention, and is to be accorded the full scope of the present invention.
Detailed Description
In order to further describe the technical means and effects adopted for achieving the preset aim of the present invention, the following describes in detail the specific implementation, structure, characteristics and effects of an arrangement method of optical fiber filaments and a preparation method of optical fiber components according to the present invention in combination with the preferred embodiments.
The preparation process of the optical fiber comprises the steps of drawing a rod tube into an optical fiber monofilament, arranging the monofilament into a primary multifilament rod, drawing the primary multifilament rod into a primary multifilament, arranging the primary multifilament into a secondary multifilament rod, … …, drawing the N multifilament rod into N multifilament rods, and arranging the N multifilament rods into N+1 multifilament rods. The method for arranging optical fiber according to the present invention aims to control the arrangement process of arranging the primary multifilament into the secondary multifilament rod, … …, and arranging the N multifilament into the n+1 multifilament rod in the above steps.
The invention provides a method for arranging optical fiber, which comprises the following steps:
firstly, drawing the multifilament rod for N times to obtain the multifilament rod for N times, wherein N is an integer greater than or equal to 1. This step is not different from the drawing process of the optical fiber in the prior art, and is not specifically described in this patent.
Secondly, checking the multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, then one end of the N multifilaments is marked. For quality inspection of N multifilaments, the inspection items mainly include inspection of the side dimensions of the N multifilaments, and inspection of the quality of the N multifilament surface filaments.
For the inspection of the side by side dimensions of N multifilaments, it is generally possible to use a length measuring instrument with an accuracy of 0.001mm, for example a calliper (micrometer). The invention sets double standards for the opposite side sizes of the N multifilaments, wherein one standard is a qualified standard for normal execution of product production, so as to judge whether the opposite side sizes of the N multifilaments have defects; if the opposite side size of the N multifilament meets the qualification standard, the inspection item is qualified, which indicates that the N multifilament can normally flow to the next process; another criterion is that N multifilaments, although defective, have a severity that can be overcome by the arrangement method of the present invention, without compromising the quality of the final product; if the opposite side size of the N multifilaments meets the relaxation standard, the inspection item is defect-containing and acceptable, and then one end of the N multifilaments is marked, and then the N multifilaments are transferred to the next process; if the N multifilaments are not only of acceptable or even relaxed size, the N multifilaments will be treated as scrap.
In one embodiment of the present invention, the qualification criteria for N multifilaments is that the difference between the measured distance between opposite sides and the standard distance between opposite sides is less than or equal to 0.005mm; the relaxation standard of the N multifilaments is that the difference between the measured distance between opposite sides and the standard distance between the opposite sides is less than or equal to 0.03mm; it can be seen that the opposite side dimension of the N multifilaments in the technical solution of the present invention has a defect and that the acceptable criterion for the defect is that the difference between the measured distance between the opposite sides of the N multifilaments and the standard distance between the opposite sides is 0.005mm to 0.03mm.
The quality of the N multifilament surface filaments, which mainly comprises filament bending and filament twisting, is generally tested under light illumination in a hundred-grade dust-free environment.
For the filament bending of the N multifilament surface filaments, the detection method is as follows: the N multifilaments to be tested are compared with standard filaments (standard filaments refer to filaments that have not been twisted). And placing the N multifilaments to be detected and the standard filaments on a flat plane, opening the cross laser light source, and adjusting the relative position relationship between the cross laser light source and the N multifilaments so that two ends of the N multifilaments fall on one linear light source of the cross laser light source. Then, it was observed whether the whole of the N multifilaments was overlapped with the linear light source. If the whole of the N multifilament coincides with the linear light source, the N multifilament is qualified, and the N multifilament can be normally transferred to the next working procedure; if the whole of the N multifilaments is not overlapped with the linear light source, but the vertical distance between the midpoint position of the N multifilaments and the linear light source is not more than 3mm, the defect of the N multifilaments is detected, but the severity of the defect can be overcome by the arrangement method of the invention, the quality of the final product is not affected, the inspection item is defect and the defect is acceptable, at the moment, one end of the N multifilaments needs to be marked, and then the N multifilaments are transferred to the next working procedure; if the vertical distance between the midpoint position of the N multifilaments and the linear light source is > 3mm, the N multifilaments will be treated as waste filaments. It can be seen from this that the technical solution of the present invention has a yarn bending defect on the surface of the N multifilaments and that the yarn bending defect is acceptable as the yarn bending degree is not more than 3mm.
For N multifilament surface filaments, the detection method is as follows: the N multifilaments to be tested are compared with standard filaments (standard filaments refer to filaments that have not been twisted). The N multifilaments to be detected are placed on a flat plane together with standard filaments so that one ends of the two multifilaments are arranged adjacently, and whether the other end surfaces of the two multifilaments undergo angular change in the circumferential direction is observed by using an angular scale and a hand-held 10-fold microscope. If the other end face of the two multifilaments does not change in angle in the circumferential direction or the other end face of the two multifilaments does not change in angle in the circumferential direction, but the angle change is less than or equal to 5 degrees, the method is a qualified standard that the surface filaments of the N multifilaments do not twist, which indicates that the N multifilaments do not twist at the moment, the N multifilaments are qualified, and the N multifilaments can be normally circulated to the next working procedure; if the angle change of the other end face of the two multifilaments is more than 5 degrees in the circumferential direction, namely the N times of multifilament surface filaments have filament twisting defects, and if the angle change of the other end face of the two multifilaments is less than or equal to 10 degrees in the circumferential direction, the N times of multifilaments have defects, but the severity of the defects can be overcome by the arrangement method of the invention, the quality of the final product is not affected, the inspection is that the defects are present and the defects are acceptable, at the moment, one end of the N times of multifilaments needs to be marked, and then the N times of multifilaments are circulated to the next procedure; if the other end faces of the two multifilaments undergo an angular change of > 10 DEG in the circumferential direction, the N multifilaments will be treated as waste filaments. It can be seen from this that the technical solution of the present invention has a yarn twist defect for the N multifilament surfaces and that the yarn twist defect is acceptable as a yarn twist level of 5 ° to 10 °.
The marking of one end of the N multifilaments in the above technical solution can be achieved in any form that can be used to make a mark on a glass surface in the prior art.
In one embodiment of the present invention, a marker may be engraved on the defective surface using a graver, or a marker may be used to mark the defective surface. However, the above-described method of producing the mark is inconvenient in producing the mark, and the mark is not highly recognized when the multifilament is arranged as a multifilament rod, which may affect the productivity.
In order to improve the recognition of the marks and to improve the production efficiency, and also to facilitate the arrangement of the multifilaments by the operator, in one embodiment of the present invention, the marking is performed on one end of the N multifilaments to form a slope on one end of the N multifilaments; the ribs formed by the inclined surfaces and the defective side surfaces are perpendicular to the axis of the N multifilaments.
The inclined plane can be manufactured in any mode which can cut an inclined plane on the surface of glass in the prior art. In one embodiment of the present invention, a glass cutter may be used to score a print on each side of the inclined surface at one end of the N multifilaments, and then gently break it along the print, with the same mechanism as glass cutting in real life.
Finally, arranging the N multifilaments into N+1 multifilament rods; the arrangement is that N multifilaments which are not marked are put into a mould without distinguishing the directions, and the N multifilaments which are marked are put into the mould with the marks facing the same direction. This step is also a key point of the N multifilament arrangement of the present invention, in which N multifilament having a certain defect but a small defect degree are marked and arranged in n+1 multifilament rods in such a manner that the marks face the same direction, so that adjacent N multifilament rods do not have a defect surface directly abutting against the defect surface, and all N multifilament can be perfectly welded together without a defect surface abutting against the defect surface and N multifilament yarns are difficult to weld together in the n+1 multifilament rod drawing process; according to the technical scheme, the quality control of the N multifilaments can be relaxed from the qualified standard to the relaxation standard with acceptable defects, the generation of waste silk quantity is greatly reduced, and great economic benefits are achieved; meanwhile, although the quality control standard of the N multifilaments is relaxed to the relaxed standard according to the technical scheme, the quality of the optical fiber component manufactured by the optical fiber component is not reduced through a specially arranged arranging process, namely a combined process of marking defective filaments of the relaxed standard and arranging the marks towards the same direction, so that the quality of the product can reach the quality of the product which can be achieved by the N multifilaments without defects, and the cost waste generated by taking the defective filaments as waste filaments is greatly reduced.
The invention also provides a method of making an optical fiber component comprising the steps of once multifilament arrangement, once multifilament arrangement. Wherein N is an integer greater than or equal to 1; the N multifilament arranging steps are as follows:
1) Drawing the multifilament rod for N times to obtain N multifilament; this step is not different from the drawing process of the optical fiber in the prior art, and is not specifically described in this patent.
2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments; this step is not different from the previous technical solution and will not be described here again.
3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement means that N multifilament yarns which are not marked are put into a mould in a non-distinguishing direction, and the N multifilament yarns which are marked are put into the mould in a way that the marks face the same direction; this step is not different from the previous technical solution and will not be described here again.
The optical fiber component prepared by the technical scheme comprises at least one of an optical fiber image inverter, an optical fiber panel and an optical fiber cone.
According to the optical fiber image inverter, the optical fiber panel or the optical fiber cone prepared by the technical scheme of the invention, an inclined section is manufactured manually outside the effective area of the fiber, the directions of defects such as dimensional errors, wire bends and wire twists are distinguished by the characteristics, the inclined section of the fiber is arranged towards one direction, the consistency of each fiber is fully ensured to be stacked, the quality control standard of N multifilament inspection can be relaxed from a qualified standard to a relaxed standard, the waste silk production is greatly reduced, the defect surface is prevented from facing the defect surface by a silk arranging process, the internal structure among the fiber is effectively controlled, and the qualification rate of various optical fiber products is improved.
The invention will be further described with reference to specific examples, which are not to be construed as limiting the scope of the invention, but rather as falling within the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will now occur to those skilled in the art in light of the foregoing disclosure.
Unless otherwise indicated, materials, reagents, and the like referred to below are commercially available products well known to those skilled in the art; unless otherwise indicated, the methods are all methods well known in the art. Unless otherwise defined, technical or scientific terms used should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs.
Examples and comparative examples
Firstly, drawing monofilaments, wherein the diameter of each monofilament is 2mm; then arranging the monofilaments into hexagonal primary multifilament bars, wherein the distance between opposite sides of the primary multifilament bars is 15.86mm; drawing the primary multifilament rod into primary multifilament, wherein the distance between opposite sides of the primary multifilament is 1mm; then arranging the primary multifilaments into hexagonal secondary multifilament bars, wherein the distance between opposite sides of the secondary multifilament bars is 21.94mm; drawing the secondary multifilament rod into secondary multifilament, wherein the distance between opposite sides of the secondary multifilament is 1mm; the secondary multifilament was then arranged into a hexagonal blank with a distance between its opposite sides of 32.33mm.
The qualification standard of the primary multifilament and the secondary multifilament is that 3 groups of opposite sides are 1mm plus or minus 0.005mm, surface filaments are not bent and twisted (the twisting angle is less than 5 degrees), and filaments selected according to the standard are defined as class I filaments. The scrap rate when filament is picked up according to this standard is about 50%.
The relaxation standards of the primary multifilament and the secondary multifilament are that 3 groups of opposite sides are respectively 1mm plus or minus 0.005 mm-0.03 mm, or the wire bending of surface wires is less than 3mm, or the wire twisting of the surface wires is 5-10 degrees, and the wires selected according to the standards are defined as II-type wires. The waste silk rate when silk is picked up according to the standard is about 30%, and the waste silk rate is reduced by 20%.
The multifilament bars were arranged to produce a product according to the following process:
1. all adopt I type silk arrangement to manufacture products, and the prepared products. All products were qualified by inspection for their shear, grid, resolution, internal quality.
2. All the II type wires are used for manufacturing products, and according to the technical scheme of the invention, inclined plane marks are manufactured at one end of the II type wires, and all inclined planes are arranged towards the same direction during arrangement. All products were qualified by inspection for shear, grid, resolution, internal quality.
3. 50% of class I wires and 50% of class II wires are used for manufacturing products, the class I wires are arranged randomly, and the class II wires are used for manufacturing inclined plane marks at one end of the class II wires according to the technical scheme of the invention, so that all inclined planes are arranged towards the same direction during arrangement. All products were qualified by inspection for their shear, grid, resolution, internal quality.
4. All the II type filaments are randomly arranged to manufacture the product. The shear, grid, resolution, internal quality of the product were tested, with all items being acceptable only accounting for 56%.
5. 50% class I filaments and 50% class II filaments were randomly arranged to produce a product. The shear, grid, resolution, internal quality were checked, with all items qualified for only 78%.
The technical features of the claims and/or the description of the present invention may be combined in a manner not limited to the combination of the claims by the relation of reference. The technical scheme obtained by combining the technical features in the claims and/or the specification is also the protection scope of the invention.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way, but any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (10)
1. A method of arranging optical fiber filaments, comprising the steps of:
1) Drawing the multifilament rod for N times to obtain N multifilament rods, wherein N is an integer greater than or equal to 1;
2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;
3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement means that N multifilaments which are not marked are put into a mould in a non-distinguishing direction, the N multifilaments which are marked are put into the mould in a way that the marks face the same direction, and all surfaces with defects are arranged in the same direction.
2. An arrangement according to claim 1, wherein said inspection comprises measuring the distance between each set of opposite sides of N multifilaments and measuring the surface condition of each of said N multifilaments.
3. The arrangement according to claim 2, wherein the distance between each set of opposite sides of the N multifilaments is measured using an instrument having a measurement accuracy of 0.001 mm; alternatively, the surface condition of each of the N multifilaments is measured under light illumination in a hundred-class dust-free environment.
4. The arrangement of claim 1, wherein the criterion for acceptable defectivity includes a difference between a measured distance between each set of opposite sides and a standard distance between each set of opposite sides of 0.005mm to 0.03mm.
5. The arrangement according to claim 1, wherein the criterion for acceptable defect comprises that the surface of the N multifilaments has a degree of filament bending of 3mm or less; the detection method of the wire bending comprises the following steps: placing the N multifilament yarns on a flat plane, and adjusting the cross light source to enable two ends of the N multifilament yarns to be positioned on one linear light source; if the whole of the N multifilaments is not overlapped with the linear light source, indicating that the N multifilaments have filament bending; the distance between the midpoint of the N multifilaments and the linear light source indicates the degree of filament bending.
6. The arrangement of claim 1, wherein the criterion for acceptable defect comprises the presence of a twist on the surface of the N multifilaments and the degree of twist is between 5 ° and 10 °; the detection method of the thread twist comprises the following steps: placing the N multifilaments and the standard yarn on the same plane, wherein the N multifilaments are adjacently arranged with one end of the standard yarn, and the angle difference between the N multifilaments and the other end of the standard yarn represents the degree of yarn torsion; the angle difference is equal to or more than 5 degrees and is the screw torque; the angle difference is 5-10 degrees, which is acceptable for the defect of thread twist.
7. An arrangement according to claim 1, characterized in that the marking at one end of the N multifilaments is made as a symbol on the side of the N multifilaments where the defect is present.
8. The arrangement of claim 1, wherein the marking at one end of the N multifilaments is performed as a bevel at one end of the N multifilaments; the ribs formed by the inclined surfaces and the defective side surfaces are perpendicular to the axis of the N multifilaments.
9. A method of making an optical fiber component comprising the steps of once multifilament arrangement, once multifilament arrangement. Wherein N is an integer greater than or equal to 1; the N multifilament arranging steps are as follows:
1) Drawing the multifilament rod for N times to obtain N multifilament;
2) Checking multifilament for N times; if the N multifilaments have a defect and the defect is acceptable, marking one end of the N multifilaments;
3) Arranging the N multifilaments into N+1 multifilament rods; the arrangement means that N multifilaments which are not marked are put into a mould in a non-distinguishing direction, the N multifilaments which are marked are put into the mould in a way that the marks face the same direction, and all surfaces with defects are arranged in the same direction.
10. The method of manufacturing according to claim 9, wherein the optical fiber component comprises at least one of an optical fiber inverter, an optical fiber panel, and an optical fiber taper.
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| JP4169260B2 (en) * | 2003-02-04 | 2008-10-22 | 信越石英株式会社 | Manufacturing method of glass preform for optical fiber by soot method with small outer diameter fluctuation and few defective parts at both ends |
| SG148159A1 (en) * | 2003-08-06 | 2008-12-31 | C C S Inc | Line light irradiation device |
| US7483610B2 (en) * | 2004-05-03 | 2009-01-27 | Nufern | Optical fiber having reduced defect density |
| US20050284184A1 (en) * | 2004-06-29 | 2005-12-29 | Grant Baynham | Methods for optical fiber manufacture |
| FR2962998A1 (en) * | 2010-07-23 | 2012-01-27 | Draka Comteq France | Marking defect on optical fiber during drawing, by stretching bare fiber, introducing bare fiber into cooling tube/intermediate tube, and injecting cooling gas into cooling tube with nominal flow/injecting inert gas into intermediate tube |
| CN202383318U (en) * | 2011-12-19 | 2012-08-15 | 中国建筑材料科学研究总院 | 4mu optical fiber panel |
| CN103466934B (en) * | 2013-08-29 | 2015-07-01 | 烽火通信科技股份有限公司 | High-efficiency beam combination laser fiber and drawing method thereof |
| JP6386322B2 (en) * | 2014-09-26 | 2018-09-05 | 株式会社クラレ | Manufacturing method of plastic image fiber |
| CN104459877B (en) * | 2014-11-28 | 2017-08-29 | 中国建筑材料科学研究总院 | A kind of optical fibre face plate point shape row's silk method and its row's silk mould |
| CN111410417B (en) * | 2020-03-31 | 2023-04-07 | 中国建筑材料科学研究总院有限公司 | Wire drawing device and method for reducing surface defects of optical fiber wires |
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