WO2011132610A1 - Cœur de ruban de fibres optiques, câble de fibres optiques, et configuration de fils - Google Patents

Cœur de ruban de fibres optiques, câble de fibres optiques, et configuration de fils Download PDF

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Publication number
WO2011132610A1
WO2011132610A1 PCT/JP2011/059389 JP2011059389W WO2011132610A1 WO 2011132610 A1 WO2011132610 A1 WO 2011132610A1 JP 2011059389 W JP2011059389 W JP 2011059389W WO 2011132610 A1 WO2011132610 A1 WO 2011132610A1
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WO
WIPO (PCT)
Prior art keywords
optical fiber
optical fibers
optical
ribbon
color
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Application number
PCT/JP2011/059389
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English (en)
Japanese (ja)
Inventor
隆志 松澤
由紀子 武
瑞基 伊佐地
健 大里
直樹 岡田
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株式会社フジクラ
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Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Publication of WO2011132610A1 publication Critical patent/WO2011132610A1/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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G02B6/4482—Code or colour marking
    • 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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/441—Optical cables built up from sub-bundles
    • G02B6/4411—Matrix structure

Definitions

  • the present invention relates to an optical fiber ribbon in which a plurality of optical fibers are connected in parallel, an optical fiber cable configured using the optical fiber ribbon, and a wiring form.
  • an optical fiber ribbon in which a plurality of optical fibers are connected in parallel has been proposed.
  • Such an optical fiber ribbon is formed by coating a plurality of parallel optical fibers with a taped material (coating material).
  • This optical fiber is generally configured by coating a bare optical fiber composed of a core and a clad with an ultraviolet curable resin, and is also referred to as an optical fiber.
  • each optical fiber constituting the optical fiber ribbon in order to identify each optical fiber constituting the optical fiber ribbon, the surface is colored in a different color for each optical fiber.
  • each optical fiber which comprises an optical fiber tape core wire can also be identified by providing a different marking in each optical fiber.
  • each optical fiber can be identified by coloring or marking the surface of the coating material covering each optical fiber.
  • Patent Document 2 describes a configuration in which the surface of the optical fiber is colored by covering the surface of the optical fiber with a transparent coloring layer.
  • the marking When the marking is provided on the surface of the taped material, the marking deteriorates over time due to the influence of temperature, humidity, etc., and the discriminability is lowered. In this case, when the taped material is peeled off and the optical fiber is used alone, the marking is lost together with the taped material.
  • the marking positions are dispersed in the longitudinal direction, it is difficult to identify the combination of markings, and the discriminability is lowered.
  • An object of the present invention is to provide a tape core, an optical fiber cable configured using the optical fiber tape, and a wiring form.
  • a first aspect of the present invention is an optical fiber ribbon comprising: a plurality of optical fibers arranged in parallel; and a taped material that covers the plurality of optical fibers to form a tape.
  • the optical fiber is coated with a translucent colored layer of the same color for identifying the optical fiber ribbon, and the taped material is formed of a colorless and transparent material.
  • the surface of each optical fiber except for a predetermined one or all the optical fibers is provided with markings different from those of other optical fibers for each predetermined distance in the longitudinal direction. .
  • a second aspect of the present invention is an optical fiber cable, comprising a plurality of optical fiber ribbons, wherein each of the optical fiber ribbons includes a plurality of parallel optical fibers and the plurality of optical fibers.
  • the taped material is formed of a colorless and transparent material, and in each of the plurality of optical fibers, the surface of each optical fiber or all the optical fibers except a predetermined one is provided for each predetermined distance in the longitudinal direction.
  • markings different from those of other optical fibers are provided, and the color of the colored layer is different for each optical fiber ribbon.
  • a third aspect of the present invention is a wiring configuration of a plurality of optical fiber ribbons, comprising a plurality of optical fiber ribbons, wherein each of the optical fiber ribbons is a plurality of parallel optical fibers.
  • a plurality of optical fibers and a taped material that covers the plurality of optical fibers to form a tape, and the plurality of optical fibers are translucently colored in the same color for identifying the optical fiber ribbon.
  • the taped material is formed of a colorless and transparent material, and in the plurality of optical fibers, the surface of each optical fiber except for a predetermined one or all optical fibers,
  • the gist is that markings different from those of other optical fibers are provided for each predetermined distance in the longitudinal direction, and the color of the colored layer is different for each optical fiber ribbon.
  • identification between optical fiber ribbons becomes easy. Further, by changing the color, arrangement, shape, and the like depending on the combination of the colored layer and the marking provided on the optical fiber, it is possible to increase the types and the number of optical fibers while maintaining the distinguishability. Furthermore, since there is a marking under the colored layer, the distinctiveness due to aging is not impaired. Since the marking visibility and discrimination are good, the color of the optical fiber itself (color of the colored layer) can be easily identified. Furthermore, since the marking and the colored layer remain even after the taped material is peeled off, the optical fiber can be easily identified.
  • optical fiber which comprises the optical fiber tape cable core which concerns on one Embodiment of this invention. It is a top view of an example of the optical fiber which comprises the optical fiber tape cable core which concerns on one Embodiment of this invention. It is a top view which shows the structure of the optical fiber tape cable core which concerns on one Embodiment of this invention. It is sectional drawing of the other example of the optical fiber which comprises the optical fiber tape cable core which concerns on one Embodiment of this invention. It is sectional drawing which shows the structure of the optical fiber cable which concerns on one Embodiment of this invention. It is a top view which shows the structure of the Example of the optical fiber tape cable core which concerns on one Embodiment of this invention. It is a top view which shows the structure of the comparative example of an optical fiber tape core wire. It is a top view which shows an example of the kind of marking in an Example and a comparative example.
  • optical fiber ribbon is an optical fiber ribbon in which a plurality of optical fibers arranged in parallel are connected to each other to form a tape.
  • FIG. 1 is a cross-sectional view of an example of an optical fiber constituting the optical fiber ribbon according to this embodiment.
  • the optical fiber 1 constituting the optical fiber ribbon according to the present embodiment is configured by covering a bare optical fiber 2 made of a quartz glass core and cladding with a fiber coating 3. .
  • the material of the fiber coating 3 is, for example, an ultraviolet curable resin.
  • An optical fiber constituted by the bare optical fiber 2 and the fiber coating 3 is also referred to as an optical fiber.
  • the fiber coating 3 may have a multilayer structure in order to constitute a so-called optical fiber core.
  • the outer periphery of the ultraviolet curable resin is further coated with a thermoplastic resin, another ultraviolet curable resin, or the like.
  • a predetermined marking 4 is provided on the outer peripheral surface of the fiber coating 3 and is further covered with a translucent colored layer 5.
  • FIG. 2 is a plan view of an example of an optical fiber constituting the optical fiber ribbon according to the present embodiment.
  • the marking 4 is provided for each predetermined distance in the longitudinal direction of the optical fiber.
  • the marking 4 is colored with an opaque color such as white having a good light reflectance, and is visible from the outside through the colored layer 5.
  • the colored layer 5 is colored in the same color in each optical fiber 1 constituting an optical fiber ribbon to be described later, and the color is changed according to each optical fiber ribbon.
  • the marking 4 may be colored with a translucent color. In this case, the marking 4 is darker than the color of the colored layer 5 so as to be visible from the outside through the colored layer 5 ( It is colored dark.
  • FIG. 3 is a plan view showing the configuration of the optical fiber ribbon according to this embodiment.
  • a plurality of optical fibers 1 are arranged in parallel, and these are covered with a tape forming material 6 to be taped.
  • the tape forming material 6 is made of a colorless and transparent material.
  • each optical fiber can be identified by the type of marking 4 (for example, the number or color thereof). Moreover, while coloring the colored layer 5 of each optical fiber 1 with the same color and changing the color for every optical fiber tape core wire, it can distinguish from another optical fiber tape core wire.
  • FIG. 4 is a cross-sectional view of another example of an optical fiber constituting the optical fiber ribbon according to this embodiment.
  • the marking 4 may be provided only on a part of the outer peripheral surface of the optical fiber 1.
  • the optical fiber ribbon according to the present embodiment has a marking 4 that is different for each optical fiber 1 for each predetermined distance in the longitudinal direction, except for a predetermined one of the plurality of optical fibers 1. And may be configured to be covered with a translucent colored layer 5 of the same color for identifying the optical fiber ribbon. In this case, one predetermined optical fiber 1 may be configured to be covered with a translucent colored layer 5 having a color distinguishable from the color of the colored layer 5 of the other optical fiber 1. This distinguishable color is preferably the same color as the marking 4.
  • optical fiber cable configured by covering a plurality of the above-described optical fiber ribbons with a jacket made of a synthetic resin material.
  • FIG. 5 is a cross-sectional view showing the configuration of the optical fiber cable according to the present embodiment.
  • the optical fiber cable 10 is, for example, a center tube type optical fiber cable.
  • the plurality of optical fiber ribbons 11 are gathered in a bundle state to form a cable core.
  • the optical fiber cable 10 is formed by extruding a thermoplastic resin 8 into a tube shape on the outer periphery of a plurality of optical fiber ribbons 11 assembled in a bundle, and the outer periphery of the tube is sheathed with a jacket 9 such as polyethylene. It is configured.
  • a plurality of optical fiber ribbons 11 except for a predetermined one of the optical fibers 1 constituting the optical fiber ribbon 11 or all of the optical fiber ribbons 11 are optical fibers.
  • the optical fiber tape 11 is covered with a translucent colored layer of the same color for identifying the fiber tape core wire 11, and the color of the colored layer is different in different optical fiber tape core wires 11. Identification between the cores 11 is possible.
  • FIG. 6 is a plan view showing a configuration of an example of the optical fiber ribbon according to the present embodiment.
  • an optical fiber ribbon was formed using the optical fiber 1 having an outer diameter of the fiber coating 3 of 250 microns.
  • the marking 4 was provided intermittently in the longitudinal direction with a marking length of 2 mm and a marking pitch of 50 mm.
  • a colored layer 5 of the same color for identifying the optical fiber ribbon was coated.
  • the optical fiber 1 constituting another optical fiber ribbon was coated with another colored layer 5 of the same color.
  • each optical fiber 1 was coated with a taped material 6 to form a tape.
  • a material for the tape forming material 6 an ultraviolet curable resin was used.
  • FIG. 7 is a plan view showing a configuration of a comparative example of the optical fiber ribbon.
  • each optical fiber 1 constituting the optical fiber ribbon was coated with a colored layer 5 of a different color.
  • FIG. 8 is a plan view showing types of markings in Examples and Comparative Examples.
  • the marking 4 is of four types as shown in (a) to (d) of FIG. That is, 4 (1) without marking (a), 1 with 2 mm marking (b), 2 with 2 mm marking (c), and 3 with 2 mm marking (d) It is a kind.
  • the state without marking is also considered as a kind of marking.
  • optical fiber tape cores of these examples and comparative examples when the discrimination characteristics of the optical fiber tape cores are compared, in the optical fiber tape cores of the examples in which the colored layers 5 of all the optical fibers 1 are the same color Compared to the optical fiber ribbon of the comparative example, it was confirmed that the discrimination of the optical fiber ribbon was significantly improved and the discrimination of the marking 4 was also improved.
  • each optical fiber 1 can be seen well even if each optical fiber 1 is separated into single optical fibers.
  • the optical fiber 1 divided into single cores could be easily identified by the combination of the marking 4 and the color of the colored layer 5.
  • the marking 4 As shown in FIG. 4 described above, even when the marking is provided only on a part of the outer peripheral surface of the optical fiber 1, the marking 4 is extremely distinguishable compared to the optical fiber ribbon of the comparative example. It was confirmed that there was an improvement.
  • the colored layer 5 may have various colors such as clear, purple, light blue, white, brown, gray, pink, and orange.
  • the color of the predetermined one colored layer 5 of the optical fibers 1 constituting the optical fiber ribbon may be the same as the color of the markings 4 of the other optical fibers 1. In this case, the predetermined one optical fiber is the same as the marking 4 provided on the whole in terms of visibility.
  • optical fibers is not limited to four as shown in the embodiment, and may be any number.
  • optical fiber cable cores may be used as subunits, and a plurality of optical fiber cable cores may be connected to form a separate type optical fiber cable core.
  • the optical fiber cable core wire serving as the subunit has the colored layer 5 of the same color so that each subunit can be identified by the color of the colored layer 5.
  • An SZ type optical fiber cable includes a core having a slot groove formed by repeatedly reversing left and right on an outer peripheral surface, an optical fiber tape core housed in the slot groove of the core, a core and an optical fiber tape core Consists of a sheath covering the wire.
  • a core in which five slot grooves are formed is used, and five four-core tape core wires are accommodated in each slot groove.
  • the optical fiber ribbon the four-fiber ribbons shown in FIGS. 6 and 7 were used.
  • the color of the colored layer was different from each other according to the number of each optical fiber ribbon.
  • the tracer method is an identification method in which the color of an optical fiber used as a tracer is different from other optical fiber ribbons, and is generally used for identifying optical fiber ribbons.
  • the optical fiber used as a tracer is typically a four-fiber optical fiber ribbon in which white, brown, and ash optical fibers are lined up.
  • the fiber ribbon is distinguished from blue, yellow, green, red, and purple.
  • White, brown, and ash are the same for all optical fiber ribbons, and each optical fiber ribbon is identified only by the tracer color, so check the color of the tracer, not the entire optical fiber ribbon. There is a need. That is, it is necessary to identify one color which is a tracer among the four thin optical fibers arranged side by side.
  • the optical fiber according to the present embodiment shown in FIG. When using the fiber tape core wire, the visibility was overwhelmingly better than when using the optical fiber tape core wire in which the color of the colored layer 5 shown in FIG.
  • the optical fiber ribbon shown in FIG. 6 has better discrimination.
  • the tracer type optical fiber ribbon it is necessary to specify the color of the optical fiber to be a tracer, so it is necessary to check the color of one optical fiber, but the optical fiber tape shown in FIG.
  • the identification can be performed in units of the optical fiber tape core wire, and the identification is easier than the tracer type.
  • the center tube type optical fiber cable is a cable in which a space for storing an optical fiber ribbon or an interposition member is formed on the central axis of the cable and the periphery is covered with a sheath. With such a cable, several to more than a dozen or more than 20 optical fibers and optical fiber ribbons are stored in the storage space. This embodiment is effective in discriminating an arbitrary optical fiber ribbon from a large number of optical fiber ribbons in such a cable structure.
  • the manufactured center tube type optical fiber cable is a 48-core optical fiber cable in which 12 sheets of 4-fiber ribbons are accommodated in a storage space on the central axis.
  • the optical fiber ribbon As the optical fiber ribbon, the marking shown in Fig. 6 is provided, and the color of the optical fiber is blue, yellow, green, red, purple, white, brown, ash, peach, water, clear. 12 optical fiber ribbons made of orange were used.
  • an optical fiber cable using an optical fiber ribbon manufactured by a tracer method was manufactured, and the discriminability of the optical fiber ribbon was compared.
  • 12 tracer colors In the tracer method, in the same way as in the embodiment of the SZ type optical fiber cable, in addition to having to discriminate each tracer color, 12 tracer colors must be used, in order to use a large number of colors.
  • optical fiber ribbon is effective when it is desired to easily distinguish a plurality of optical fiber ribbons, such as various wirings, in addition to the optical fiber cable.
  • an optical fiber coupler for simultaneously connecting a plurality of optical fiber ribbons was manufactured using the optical fiber ribbon shown in FIG. Also in this case, as in the case of using the optical fiber cable, the optical fiber tape core wire has good discrimination and an improvement in workability is recognized.
  • a plurality of such optical fiber couplers are used in closures, optical termination boxes, termination racks, and the like. Even when this optical fiber coupler is housed in a closure using a termination box or a splitter unit, the optical fiber tape core wire has good discrimination and improved workability.
  • the optical fiber ribbon, the optical fiber cable, and the wiring form according to the present embodiment it is easy to distinguish between many types of optical fiber ribbons. Further, by changing the color, arrangement, shape, and the like depending on the combination of the colored layer and the marking provided on the optical fiber, it is possible to increase the types and the number of optical fibers while maintaining the distinguishability. Furthermore, since there is a marking under the colored layer, the distinctiveness due to aging is not impaired. Since the marking visibility and discrimination are good, the color of the optical fiber itself (color of the colored layer) can be easily identified. Furthermore, since the marking and the colored layer remain even after the taped material is peeled off, the optical fiber can be easily identified.
  • the present invention is applied to an optical fiber ribbon in which a plurality of optical fibers are connected in parallel and an optical fiber cable configured using the optical fiber ribbon.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

L'invention concerne un coeur de ruban de fibres optiques qui est équipé : d'une pluralité de fibres optiques (1) en juxtaposition, et d'un matériau de formation de ruban (6) qui recouvre ladite pluralité de fibres optiques (1) et lui donne la forme d'un ruban. Ladite pluralité de fibres optiques (1) est recouverte d'une couche colorée (5) semi-transparente de même couleur destinée à identifier ce coeur de ruban de fibres optiques. Ledit matériau de formation de ruban (6) est formé à partir d'une matière transparente incolore. À l'exception d'une fibre optique prédéfinie, sur chaque fibre optique ou sur la surface de l'ensemble des fibres optiques de ladite pluralité de fibres optiques (1), est agencé à une distance prédéfinie dans la direction longitudinale de celles-ci, un marquage (4) différent de celui des autres fibres optiques.
PCT/JP2011/059389 2010-04-20 2011-04-15 Cœur de ruban de fibres optiques, câble de fibres optiques, et configuration de fils WO2011132610A1 (fr)

Applications Claiming Priority (2)

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JP2010-097118 2010-04-20
JP2010097118A JP2011227298A (ja) 2010-04-20 2010-04-20 光ファイバテープ心線、光ファイバケーブル及び配線形態

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107346046A (zh) * 2017-06-30 2017-11-14 南京吉隆光纤通信股份有限公司 具有侧面识别标记的非圆对称光纤
CN107533204A (zh) * 2015-06-22 2018-01-02 株式会社藤仓 光纤带、光缆以及光纤芯线
US10185110B2 (en) 2014-11-20 2019-01-22 Fujikura Ltd. Optical fiber ribbon, optical fiber cable, and method for producing optical fiber ribbon
JPWO2021049626A1 (fr) * 2019-09-11 2021-03-18

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6248798B2 (ja) * 2014-05-16 2017-12-20 住友電気工業株式会社 テープ心線、および光ケーブル
EP3845942A4 (fr) * 2018-08-27 2022-05-25 Sumitomo Electric Industries, Ltd. Noyau de fibre optique ayant des marques d'identification et méthode de production pour noyau de fibre optique ayant des marques d'identification
JP7552621B2 (ja) 2020-02-03 2024-09-18 住友電気工業株式会社 光ファイバケーブル

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Publication number Priority date Publication date Assignee Title
JP2005326781A (ja) * 2004-05-17 2005-11-24 Fujikura Ltd 光ファイバ心線及び光ファイバケーブル
JP2005331823A (ja) * 2004-05-21 2005-12-02 Fujikura Ltd 光ファイバ着色心線、光ファイバ着色テープ心線、光ファイバケーブル、及び光ファイバドロップケーブル

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005326781A (ja) * 2004-05-17 2005-11-24 Fujikura Ltd 光ファイバ心線及び光ファイバケーブル
JP2005331823A (ja) * 2004-05-21 2005-12-02 Fujikura Ltd 光ファイバ着色心線、光ファイバ着色テープ心線、光ファイバケーブル、及び光ファイバドロップケーブル

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10185110B2 (en) 2014-11-20 2019-01-22 Fujikura Ltd. Optical fiber ribbon, optical fiber cable, and method for producing optical fiber ribbon
CN107533204A (zh) * 2015-06-22 2018-01-02 株式会社藤仓 光纤带、光缆以及光纤芯线
EP3312649A4 (fr) * 2015-06-22 2019-03-06 Fujikura Ltd. Ruban de fibres optiques, câble de fibres optiques et fil de fibres optiques
US10393983B2 (en) 2015-06-22 2019-08-27 Fujikura Ltd. Optical fiber ribbon, optical fiber cable, and optical fiber
CN107533204B (zh) * 2015-06-22 2019-11-01 株式会社藤仓 光纤带、光缆以及光纤芯线
CN107346046A (zh) * 2017-06-30 2017-11-14 南京吉隆光纤通信股份有限公司 具有侧面识别标记的非圆对称光纤
JPWO2021049626A1 (fr) * 2019-09-11 2021-03-18

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TW201207458A (en) 2012-02-16

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