WO2020144935A1 - Câble de sortance et son procédé de production - Google Patents

Câble de sortance et son procédé de production Download PDF

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Publication number
WO2020144935A1
WO2020144935A1 PCT/JP2019/044503 JP2019044503W WO2020144935A1 WO 2020144935 A1 WO2020144935 A1 WO 2020144935A1 JP 2019044503 W JP2019044503 W JP 2019044503W WO 2020144935 A1 WO2020144935 A1 WO 2020144935A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
fiber core
optical
core wires
fan
Prior art date
Application number
PCT/JP2019/044503
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English (en)
Japanese (ja)
Inventor
慎司 山根
横川　知行
Original Assignee
Ｓｅｉオプティフロンティア株式会社
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ｓｅｉオプティフロンティア株式会社, 住友電気工業株式会社 filed Critical Ｓｅｉオプティフロンティア株式会社
Publication of WO2020144935A1 publication Critical patent/WO2020144935A1/fr

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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
    • G02B6/24—Coupling light guides
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means

Definitions

  • the present disclosure relates to a fanout code and a manufacturing method thereof.
  • Patent Document 1 discloses a fan-out cord including an optical fiber ribbon, a plurality of protective tubes, a protective sleeve, and a plurality of optical connectors.
  • the protective tube accommodates the optical fiber core wire which is branched by removing a part of the coating of the optical fiber tape core wire.
  • the protective sleeve accommodates a branch portion branched from the optical fiber ribbon to the optical fiber ribbon.
  • the optical connector is attached to the tip of the optical fiber core wire.
  • Patent Document 2 discloses a multi-fiber optical connector including an optical fiber cord, a plurality of reinforcing tubes, a heat-shrinkable tube, and a plurality of optical connectors.
  • the optical fiber cord has a plurality of optical fiber ribbons.
  • the reinforcing tube accommodates one optical fiber tape core wire which is obtained by removing a part of the coating of the optical fiber cord and branching it.
  • the heat-shrinkable tube covers and protects connection points between the optical fiber cord and the plurality of reinforcing tubes.
  • the optical connector is attached to the tip of the optical fiber ribbon.
  • a fan-out code is A plurality of optical fiber core wires, a plurality of optical connectors respectively attached to one end portions of the plurality of optical fiber core wires, and the plurality of optical fiber cores formed at the other end portions of the plurality of optical fiber core wires
  • a terminal unit having a gathering unit integrating lines, Optical fiber ribbon A fusion splicing section in which the optical fibers included in the gathering section of the terminal section and the optical fibers included in the optical fiber tape core are fusion-spliced,
  • the collecting portion includes the other end portions of the plurality of optical fiber core wires arranged in parallel, and a covering material that covers at least a part of the other end portions of the plurality of optical fiber core wires.
  • a method for manufacturing a fan-out cord A terminal part having a collecting part by arranging a plurality of optical fiber core wires having optical connectors attached to one end part in parallel and covering at least a part of the other end parts of the plurality of optical fiber core wires with a covering material.
  • Forming a A step of fusion-splicing an optical fiber included in the collecting portion of the terminal portion and an optical fiber included in the optical fiber tape core wire; Attaching a protective member to the fusion-spliced portion, Equipped with.
  • FIG. 1 is a perspective view showing a fan-out cord according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram showing a terminal portion of the fan-out code.
  • FIG. 3 is a schematic diagram showing an optical fiber core wire of a terminal portion.
  • FIG. 4 is a sectional view taken along the line IV-IV of the collecting portion of the terminal portion of FIG.
  • FIG. 5 is an exploded view of the optical connector of the terminal unit.
  • FIG. 6 is a cross-sectional view taken along the line VI-VI of the optical fiber ribbon core wire of the fan-out cord of FIG.
  • FIG. 7 is a diagram showing a process flow of a conventional fan-out cord manufacturing method.
  • FIG. 1 is a perspective view showing a fan-out cord according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram showing a terminal portion of the fan-out code.
  • FIG. 3 is a schematic diagram showing an optical fiber core wire of a terminal portion.
  • FIG. 4 is
  • FIG. 8 is a diagram showing a process flow of a method for manufacturing a fan-out cord according to the embodiment of the present disclosure.
  • FIG. 9 is a diagram showing a state in which the protective member is inserted into the optical fiber ribbon core wire in step S11 of FIG.
  • FIG. 10 is a diagram showing the terminal unit in step S13 of FIG.
  • FIG. 11 is a diagram showing the optical fiber ribbons in step S13 of FIG.
  • FIG. 12 is a diagram showing a state before the protection member is attached to the fusion splicing portion in step S14 of FIG.
  • the present disclosure aims to provide a fan-out cord that can be efficiently manufactured and a manufacturing method thereof.
  • a fan-out code according to an aspect of the present disclosure is (1) A plurality of optical fiber core wires, a plurality of optical connectors respectively attached to one end portions of the plurality of optical fiber core wires, and the plurality of optical connectors formed at the other end portions of the plurality of optical fiber core wires.
  • a terminal unit having a collecting unit in which the optical fiber core wires are integrated, Optical fiber ribbon A fusion splicing section in which the optical fibers included in the gathering section of the terminal section and the optical fibers included in the optical fiber tape core are fusion-spliced, A protective member that reinforces the fusion splicing portion,
  • the collecting portion includes the other end portions of the plurality of optical fiber core wires arranged in parallel, and a covering material that covers at least a part of the other end portions of the plurality of optical fiber core wires.
  • the optical fiber included in the separately formed terminal portion and the optical fiber included in the optical fiber tape core are fusion-spliced, so that the fan-out cord can be efficiently manufactured.
  • the terminal portion has a plurality of optical fiber core wires to which optical connectors are attached. Since the optical fiber core wire to which the optical connector is attached is highly versatile, it can be used for purposes other than the fan-out cord. Therefore, it is possible to manufacture and stock a large amount of optical fiber cores to which the optical connector is attached in advance. Then, at the time of manufacturing the terminal portion, it is possible to take out the optical fiber core wires to which the required number of optical connectors are attached from the stock.
  • the periphery of the other end portion of the optical fiber core wire is covered with a covering material to form the aggregated portion. Therefore, when polishing the end face of the optical connector, it is easy to handle the optical connector. Further, the end faces of all the optical connectors included in the terminal portion can be polished together. Therefore, the work time and work cost for polishing the end face of the optical connector can be reduced.
  • the terminal portion may have a plurality of reinforcing tubes that respectively accommodate the plurality of optical fiber core wires.
  • the terminal portion has the reinforcing tube.
  • the reinforcing tube can reinforce the optical fiber core wire.
  • a terminal part having a collecting part by arranging a plurality of optical fiber core wires having optical connectors attached to one end part in parallel and covering at least a part of the other end parts of the plurality of optical fiber core wires with a covering material.
  • Forming a A step of fusion-splicing an optical fiber included in the collecting portion of the terminal portion and an optical fiber included in the optical fiber tape core wire; Attaching a protective member to the fusion-spliced portion, Equipped with.
  • the fan-out cord can be efficiently manufactured.
  • the terminal portion has a plurality of optical fiber core wires to which optical connectors are attached. Since the optical fiber core wire to which the optical connector is attached is highly versatile, it can be used for purposes other than the fan-out cord. Therefore, it is possible to manufacture and stock a large amount of optical fiber cores to which the optical connector is attached in advance. Then, at the time of manufacturing the terminal portion, it is possible to take out the optical fiber core wires to which the required number of optical connectors are attached from the stock.
  • the periphery of the other end of the optical fiber core is covered with a covering material to form the assembly. Therefore, when polishing the end face of the optical connector, it is easy to handle the optical connector. Further, the end faces of all the optical connectors included in the terminal portion can be polished together. Therefore, the work time and work cost for polishing the end face of the optical connector can be reduced.
  • the plurality of optical fiber core wires may be housed in a plurality of reinforcing tubes, respectively.
  • the terminal portion has the reinforcing tube.
  • the reinforcing tube can reinforce the optical fiber core wire.
  • the “left-right direction” is a direction including the “left direction” and the “right direction”.
  • “Up-down direction” is a direction including “upward direction” and “downward direction”.
  • the "front-rear direction” is a direction including the "front direction” and the “rear direction”.
  • the left-right direction is a direction orthogonal to the up-down direction.
  • the front-back direction is a direction orthogonal to the left-right direction and the up-down direction.
  • the “forward direction” means the terminal side with respect to the longitudinal direction of the fan-out cord 1
  • the “rearward direction” means the optical fiber tape core side with respect to the longitudinal direction of the fan-out cord 1. ..
  • FIG. 1 is a schematic diagram showing a fan-out cord 1 according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic diagram showing the terminal unit 2 of the fan-out cord 1.
  • FIG. 3 is a schematic diagram showing the optical fiber core wire 21 of the terminal unit 2.
  • FIG. 4 is a sectional view of the collecting portion 24 of the terminal portion 2.
  • FIG. 5 is an exploded view of the optical connector 23 of the terminal unit 2.
  • FIG. 6 is a sectional view of the optical fiber ribbon core wire 3 of the fan-out cord 1.
  • the fan-out cord 1 includes a terminal portion 2, an optical fiber ribbon core wire 3, a fusion splicing portion 4, and a protective member 5.
  • the terminal section 2 includes a plurality of optical fiber core wires 21, a plurality of reinforcing tubes 22, a plurality of optical connectors 23, and a collecting section 24.
  • the terminal unit 2 has, for example, 12 optical fiber core wires 21.
  • the number of the optical fiber core wires 21 differs depending on the use of the fan-out cord and the structure of the optical device to which it is connected.
  • the optical fiber core wire 21 is housed in a reinforcing tube 22, as shown in FIG.
  • One end (front end) of the optical fiber core wire 21 is exposed from the reinforcing tube 22 and the optical connector 23 is attached.
  • the other end (rear end) of the optical fiber 21 is exposed from the reinforcing tube 22.
  • the length L1 from the tip of the optical connector 23 to the rear end of the reinforcing tube 22 is 300 mm
  • the length L2 of the optical fiber core wire 21 exposed from the reinforcing tube 22 is 150 mm.
  • the other ends of the twelve optical fiber core wires 21 are arranged in parallel as shown in FIGS. 2 and 4, and the periphery thereof is covered with the resin 25 (for example, an ultraviolet curable resin), so that the gathering portion is formed. 24 are formed.
  • the resin 25 is an example of a coating material.
  • the length L1 from the tip of the optical connector 23 to the rear end of the reinforcing tube 22 is 300 mm
  • the length L3 of the optical fiber core wire 21 exposed from the reinforcing tube 22 including the collecting portion 24 is 50 mm.
  • the gathering portion 24 is fusion-spliced with the optical fiber ribbon 3
  • the coating resin (resin 25 and resin 21b) at the tip portion is removed, and the optical fiber 21a is exposed.
  • the present invention is not limited to this.
  • the other ends of the optical fiber core wires 21 may be arranged in a state of being separated from each other and covered with a resin. Further, the entire 12 optical fiber core wires 21 do not have to be collectively covered with the resin 25, and the plurality of optical fiber core wires 21 are covered with the resin for every several groups to form the collecting portion 24. May be. Further, the entire circumference of the optical fiber core wire 21 does not have to be covered with the resin, and only a part of the adjacent optical fiber core wires 21 may be bonded with the resin.
  • the optical fiber core wire 21 has a diameter of, for example, 0.25 mm, and is a single-core optical fiber core wire formed by covering the periphery of the optical fiber 21a with a resin 21b (for example, an ultraviolet curable resin). ..
  • the optical fiber core wire 21 has a diameter of 0.9 mm, and may be formed by covering the circumference of the optical fiber with a primary coating and a secondary coating.
  • the optical fiber is, for example, an all-quartz fiber having a core and a clad made of quartz glass, or a hard plastic clad fiber having a core made of quartz glass and a clad made of resin.
  • the reinforcing tube 22 accommodates the optical fiber core wire 21 and is attached to the optical connector 23 together with the optical fiber core wire 21.
  • the reinforcing tube 22 is, for example, a nylon (Ny) tube, and has an inner diameter of 0.5 mm and an outer diameter of 0.9 mm.
  • the optical connector 23 includes a ferrule 26, a spring 27, a housing 28, and a boot 29, as shown in FIG.
  • the housing 28 has a front housing 28a and a rear housing 28b.
  • the ferrule 26 has a main body portion 26a and a flange portion 26b.
  • the main body portion 26a is made of, for example, zirconia, and has an optical fiber insertion hole (not shown) in its central axis.
  • the optical fiber 21a exposed by removing a part of the coating resin 21b at the front end of the optical fiber 21 is inserted into the optical fiber insertion hole and positioned.
  • the flange portion 26b is made of, for example, metal, has an inner diameter larger than the optical fiber insertion hole of the main body portion 26a, and has a hole (not shown) communicating with the optical fiber insertion hole.
  • the front end portion of the reinforcing tube 22 and the optical fiber core wire 21 exposed from the reinforcing tube 22 is inserted into the hole of the flange portion 26b and fixed by resin or the like.
  • the spring 27 is made of, for example, a metal compression coil spring, and is arranged so as to come into contact with the flange portion 26b of the ferrule 26.
  • the spring 27 allows the ferrule 26 to move along the axial direction of the optical connector 23 while being elastically biased forward in the front housing 28a.
  • the housing 28 is a resin member.
  • the front housing 28a has a housing portion 61, a latch 62, and an engagement hole 63.
  • the housing portion 61 houses the ferrule 26 and the spring 27.
  • the latch 62 is arranged so as to project obliquely upward and rearward from the upper portion of the housing portion 61. By operating the latch 62, the optical connector 23 can be locked and unlocked with respect to the connected optical device.
  • the rear housing 28b has a housing portion 64 and an engagement portion 65.
  • the housing portion 64 houses the reinforcing tube 22 connected to the ferrule 26.
  • the front housing 28a is attached to the rear housing 28b by the engagement portion 65 of the rear housing 28b engaging with the engagement hole 63 of the front housing 28a.
  • the boot 29 protects the optical fiber core wire 21 extending rearward of the rear housing 28b so that the optical fiber core wire 21 does not suddenly bend.
  • the boot 29 is attached to the rear housing 28b by fitting or screwing the front end portion to the rear end portion of the rear housing 28b.
  • the optical fiber ribbons 3 have the same number of optical fiber ribbons 31 as the number of the optical fiber ribbons 21 of the terminal portion 2 arranged in parallel, and a resin 32 (for example, a resin 32) covering the periphery thereof. UV curable resin).
  • the optical fiber tape core wire 3 has a length of 2000 mm, for example.
  • the optical fiber ribbon core wire 3 is a 12-fiber optical fiber ribbon core wire including twelve optical fiber ribbon core wires 31.
  • the optical fiber core wire 31 is a single-core optical fiber core wire formed by covering the periphery of the optical fiber 31a with a resin 31b.
  • the configuration of the optical fiber core wire 31 is the same as the configuration of the optical fiber core wire 21 of the terminal portion 2, detailed description will be omitted.
  • the coating resin (resin 32 and resin 31b) at the tip portion is removed and the optical fiber 31a is exposed.
  • the other ends of the optical fiber ribbons 31 are arranged in contact with each other in the optical fiber ribbons 3, the invention is not limited to this.
  • the other ends of the optical fiber core wires 31 may be arranged in a state of being separated from each other and covered with a resin.
  • the protective member 5 includes a protective sleeve 51, a first heat-shrinkable tube 52, and a second heat-shrinkable tube 53.
  • the protective sleeve 51 covers at least the fusion splicing part 4 and the optical fibers 21a and 31a near the fusion splicing part 4, and reinforces the fusion splicing part 4 and the optical fibers 21a and 31a.
  • the protective sleeve 51 has, for example, heat shrinkability.
  • the first heat-shrinkable tube 52 covers the optical fiber core wire 21 and the collecting portion 24 exposed from the reinforcing tube 22, and reinforces the optical fiber core wire 21 and the collecting portion 24.
  • the second heat-shrinkable tube 53 covers the first heat-shrinkable tube 52 and the protective sleeve 51, and protects the first heat-shrinkable tube 52 and the protective sleeve 51.
  • the first heat-shrinkable tube 52 and the second heat-shrinkable tube 53 may be integrally molded.
  • FIG. 7 is a diagram showing a process flow of a conventional fan-out cord manufacturing method.
  • FIG. 8 is a diagram showing a process flow of the method for manufacturing the fan-out cord 1 according to the embodiment of the present disclosure.
  • FIG. 9 is a diagram showing a state in which the protective member is inserted into the optical fiber ribbon core wire in step S11 of FIG.
  • FIG. 10 is a diagram showing the terminal unit 2 in step S13 of FIG.
  • FIG. 11 is a diagram showing the optical fiber ribbon core wire 3 in step S13 of FIG. FIG.
  • FIG. 12 is a diagram showing a state before attaching the protection member 5 to the fusion splicing portion 4 in step S14 of FIG. 10 to 12, the illustration of the optical fiber 21a and the optical fiber 31a is simplified. A method of manufacturing a fan-out cord having 12 optical fiber core wires will be described.
  • step S1 a 12-fiber optical fiber ribbon is prepared.
  • step S2 the coating resin is removed from a part of the optical fiber ribbon to separate it into 12 optical fiber ribbons.
  • step S3 a reinforcing tube is inserted into each of the 12 separated optical fiber core wires.
  • step S4 the end portion of the optical fiber ribbon is inserted into the protective member.
  • step S5 the protective member is moved from the optical fiber ribbon to the portion separated from the optical fiber ribbon (hereinafter referred to as the separating portion) and fixed by heat.
  • step S6 the end of each optical fiber core wire is previously inserted into a predetermined component (boot, rear housing, spring) of the optical connector.
  • step S7 the coating resin on the tip of the optical fiber core wire exposed from the reinforcing tube is removed, and the exposed optical fiber is inserted into the ferrule. Then, the optical fiber, the tip of the optical fiber core, and the tip of the reinforcing tube are fixed to the ferrule.
  • step S8 the end face of the ferrule is polished and the end face is inspected.
  • the component of the optical connector which has been previously inserted through the end of the optical fiber core wire is moved to the ferrule.
  • the remaining optical connector components front housing are inserted from the tip of the ferrule to assemble the optical connector (step S9).
  • the optical fiber ribbon is separated into the optical fiber ribbons, and then each optical fiber ribbon is housed in the reinforcing tube. Further, the end face of the ferrule was polished while the separation portion and the optical fiber tape core wire were connected to the ferrule.
  • step S10 12 optical fiber ribbons 3 are prepared.
  • step S11 as shown in FIG. 9, the end portion of the optical fiber ribbon 3 is inserted into the protective member 5 (the protective sleeve 51, the first heat shrinkable tube 52, the second heat shrinkable tube 53) in advance.
  • steps S20 to S25 twelve optical fiber core wires 21 (see FIG. 3) housed in the reinforcing tube 22 and having the optical connector 23 attached to one end are prepared.
  • step S20 and step S21 the optical fiber core wire 21 is housed in the reinforcing tube 22.
  • step S22 the end portion of the reinforcing tube 22 is previously inserted into a predetermined component (boot 29, rear housing 28b, spring 27) of the optical connector 23.
  • step S23 the coating resin 21b at the tip of the optical fiber core wire 21 exposed from the reinforcing tube 22 is removed, and the exposed optical fiber 21a is inserted into the ferrule 26. Then, the exposed optical fiber 21 a, the tip of the optical fiber core wire 21, and the tip of the reinforcing tube 22 are fixed to the ferrule 26.
  • step S24 the end surface of the ferrule 26 is polished and the end surface is inspected.
  • the component of the optical connector 23 which has been inserted through the end of the optical fiber core wire 21 in advance is moved to the ferrule 26.
  • the remaining parts of the optical connector 23 front housing 28a are inserted from the tip of the ferrule 26 to assemble the optical connector 23 (step S25).
  • step S12 the other ends of the twelve optical fiber core wires 21 are arranged in parallel, and the periphery thereof is covered with the resin 25 to form the collecting portion 24 (hereinafter, also referred to as "ribonize").
  • step S13 the optical fibers included in the collecting portion 24 of the terminal portion 2 and the optical fibers included in the optical fiber ribbon 3 are fusion-spliced by the fusion splicer.
  • the coating resin 25 is removed from a part of the collecting portion 24 of the terminal portion 2.
  • the coating resin 21b is removed from the exposed optical fiber core wire 21 to expose 12 optical fibers 21a.
  • the coating resin 32 on the front end portion of the optical fiber ribbon 3 is removed.
  • the coating resin 31b is removed from the exposed optical fiber core wire 31 to expose 12 optical fibers 31a. Then, the twelve optical fibers 21a exposed from the rear end of the terminal portion 2 and the twelve optical fibers 31a exposed from the front end of the optical fiber ribbon 3 are butted against each other and fusion-bonded (see FIG. 12). .. Then, in step S14, the protective member 5 (the protective sleeve 51, the first heat-shrinkable tube 52, and the second heat-shrinkable tube 53) that has been inserted through the end of the optical fiber ribbon 3 is fusion-spliced to the portion. Move and fix. As a result, the fan-out cord 1 shown in FIG. 1 is manufactured.
  • the optical fibers included in the separately formed terminal portion 2 and the optical fibers included in the optical fiber ribbon 3 are fusion-spliced. To do. Since the optical fiber core wire 21 housed in the reinforcing tube 22 and attached with the optical connector 23 has high versatility, it is possible to manufacture and stock a large amount in advance. At the time of manufacturing the terminal unit 2, the required number of the reinforcing tubes 22 and the optical fiber core wires 21 with the optical connectors 23 can be taken out from the stock. Therefore, when manufacturing the fan-out cord 1, the manufacturing process of steps S20 to S25 can be omitted.
  • step S23 the polishing of the end surface of the ferrule 26 in step S23 is performed before the optical fiber core wire 21 is reborn.
  • the end faces of the plurality of ferrules 26 can be polished together. Therefore, it is possible to reduce the work time and work cost for polishing the end surface of the ferrule 26.
  • the fan-out cord is provided. It can be manufactured efficiently.
  • the terminal portion 2 has a plurality of optical fiber core wires 21 housed in the reinforcing tube 22 and to which the optical connector 23 is attached. Since the optical fiber core wire 21 with the reinforcing tube 22 and the optical connector 23 is highly versatile, it can be used for purposes other than the fan-out cord. Therefore, it is possible to manufacture and stock a large amount of optical fiber core wires 21 with the reinforcing tube 22 and the optical connector 23 in advance.
  • the required number of the reinforcing tubes 22 and the optical fiber core wires 21 with the optical connectors 23 can be taken out from the stock. Therefore, when manufacturing the fan-out cord, it is not necessary to pass the reinforcing tubes 22 one by one through the optical fiber core wire 21, and the work efficiency is improved.
  • the optical fiber core 21 is re-ribonized. Therefore, when polishing the end face of the optical connector 23, the optical connector 23 can be easily handled. Further, the end faces of the plurality of optical connectors 23 can be polished together. Therefore, it is possible to reduce the work time and work cost for polishing the end surface of the optical connector 23.
  • the terminal unit 2 has a reinforcing tube 22.
  • the optical fiber core wire 21 can be reinforced by the reinforcing tube 22.
  • the terminal portion 2 has the reinforcing tube 22 that accommodates the optical fiber core wire 21, but the reinforcing tube 22 may not be provided. Also in this case, as in the above embodiment, it is possible to manufacture a large amount of optical fiber core wires 21 with the optical connectors 23 in advance and stock them. Further, it is possible to reduce the work time and work cost for polishing the end surface of the connector 23.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

L'invention concerne un câble de sortance comprenant : une partie de borne qui a une pluralité de fils de coeur de fibre optique, une pluralité de connecteurs optiques fixés à une extrémité des fils de coeur de fibre optique respectifs, et une section d'assemblage qui est formée au niveau des autres extrémités des fils de coeur de fibre optique respectifs de façon à regrouper les fils de coeur de fibre optique en une seule pièce ; un fil central de bande de fibre optique ; une partie d'épissage par fusion dans laquelle des fibres optiques incluses dans la section d'assemblage de la partie de borne sont épissées par fusion avec des fibres optiques incluses dans le fil central de bande de fibre optique ; et un élément de protection qui renforce la partie d'épissage par fusion. La section d'assemblage comprend : les autres extrémités de la pluralité de fils de coeur de fibre optique qui sont disposés en réseau en parallèle ; et un matériau de revêtement qui recouvre au moins une partie de la zone environnante desdites autres extrémités de la pluralité de fils de coeur de fibre optique.
PCT/JP2019/044503 2019-01-10 2019-11-13 Câble de sortance et son procédé de production WO2020144935A1 (fr)

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JP2019002695 2019-01-10
JP2019-002695 2019-01-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002072005A (ja) * 2000-09-01 2002-03-12 Sumitomo Electric Ind Ltd 多心光ファイバの単心分岐部を有する光ファイバコードとその製造方法
JP2002189156A (ja) * 2000-12-20 2002-07-05 Fujikura Ltd 分岐コード
JP2005043405A (ja) * 2003-07-22 2005-02-17 Mitsubishi Cable Ind Ltd 分岐用光ファイバ
US20190004273A1 (en) * 2017-06-28 2019-01-03 Corning Research & Development Corporation High fiber count pre-terminated optical distribution assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002072005A (ja) * 2000-09-01 2002-03-12 Sumitomo Electric Ind Ltd 多心光ファイバの単心分岐部を有する光ファイバコードとその製造方法
JP2002189156A (ja) * 2000-12-20 2002-07-05 Fujikura Ltd 分岐コード
JP2005043405A (ja) * 2003-07-22 2005-02-17 Mitsubishi Cable Ind Ltd 分岐用光ファイバ
US20190004273A1 (en) * 2017-06-28 2019-01-03 Corning Research & Development Corporation High fiber count pre-terminated optical distribution assembly

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