WO2005101080A1 - 光ファイバテープユニット及び光ファイバケーブル - Google Patents
光ファイバテープユニット及び光ファイバケーブル Download PDFInfo
- Publication number
- WO2005101080A1 WO2005101080A1 PCT/JP2005/007094 JP2005007094W WO2005101080A1 WO 2005101080 A1 WO2005101080 A1 WO 2005101080A1 JP 2005007094 W JP2005007094 W JP 2005007094W WO 2005101080 A1 WO2005101080 A1 WO 2005101080A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical fiber
- tape unit
- connecting member
- overcoat layer
- fiber tape
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G02B6/4403—Optical cables with ribbon structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
-
- 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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
-
- 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
Definitions
- Japanese Patent Application Laid-Open No. 2001-343571 discloses this type of optical fiber cable.
- the support wire portion 19 is formed by forming a sheath 25 on the outer periphery of a strength member in which six steel wires are twisted around one copper wire.
- An object of the present invention is to easily and manually separate a tape-type optical fiber core consisting of a plurality of strands (single core) into strands (single core).
- An object of the present invention is to provide an optical fiber tape unit and an optical fiber cable having excellent single-core separation performance that can minimize the occurrence of a cutting accident in which an optical fiber can be easily identified at the time of and after the separation.
- the overcoat layer has a Young's modulus El and a cross-sectional area A1, and the connecting member has a Young's modulus.
- the overcoat layer and the connecting member may be made of a thermosetting resin or a thermoplastic resin.
- the connecting member may be colored by mixing a coloring agent.
- the connecting member may be formed on both sides corresponding to long sides of a substantially rectangular cross section formed by arranging a plurality of the optical fiber cores in parallel.
- the optical fiber core wire can be easily identified.
- the fiber tape unit can be easily identified.
- FIG. 6 is a schematic sectional view showing an optical fiber cable in an example according to the present invention.
- FIG. 7 is a schematic sectional view showing a conventional optical fiber cable.
- an optical fiber core 10 used in the present invention comprises an optical fiber 17 composed of a core and a cladding force, a primary coating layer 16, a secondary coating layer 15, and a coloring layer 14. And an overcoat layer 13 having an outer diameter of 0.4 mm or more.
- the secondary coating layer may be colored by mixing a coloring agent.
- FIG. 2 is a schematic sectional view showing the optical fiber tape unit in the first embodiment according to the present invention.
- FIG. 3 is a schematic sectional view showing an optical fiber tape unit in a second embodiment according to the present invention.
- the optical fiber tape unit 12 of the present embodiment a plurality of optical fiber cores 10 are arranged in parallel, and the connecting member 11 is provided only in the concave portion between the optical fiber cores on the outer periphery. Provided and connected.
- FIG. 4 is a schematic sectional view showing an optical fiber tape unit in a third embodiment according to the present invention.
- FIG. 5 is a schematic sectional view showing an optical fiber tape unit in a fourth embodiment according to the present invention.
- the optical fiber tape unit of the present invention is not limited to the above embodiment.
- the overcoat layer has a Young's modulus El and a cross-sectional area A1
- the connecting member has a Young's modulus E2 and a cross-sectional area A2
- E1 ⁇ E2 and ⁇ ⁇ 1 ⁇ ⁇ 1 ⁇ ⁇ ⁇ ⁇ ⁇ 2 ⁇ ⁇ 2 should be satisfied.
- FIG. 6 is a schematic sectional view showing an optical fiber cable in an embodiment according to the present invention.
- Example 2 Multiple prototypes of four-fiber optical fiber tape units were manufactured, and single-fiber separation work was performed on each optical fiber tape unit by hand without using a tool, and the single-fiber separation evaluation was performed. The results are shown in Table 2.
- the single-core separation evaluation “X” indicates that part or all of the overcoat layer of the optical fiber was broken during single-core separation.
- Figure 8 shows the coating removal test method. Using an optical fiber core wire 10 with an outer diameter of 0.4 mm and 0.5 mm, a blade 28 for removing coating is placed 100 mm from the end of the optical fiber core so as not to scratch the optical fiber. Then, the coat layer 13 was cut in the circumferential direction, and the coat layer 13 was removed while being moved in a direction parallel to the optical fiber core wire 10. Then, the maximum removing force at that time was measured by a tension measuring machine. Tables 3 and 4 show the results.
- Average identification time 54 seconds 46 seconds 41 seconds 39 seconds 50 seconds
- the connecting member transparent and color-code the optical fiber dye line. Further, when the colors of the optical fibers are all the same, a coloring agent is mixed into the connecting member itself to be colored, whereby the discrimination of the optical fibers can be improved. Further, a stripe-shaped color band may be provided on the connecting member.
- Example 5 an optical fiber core wire used for an optical fiber tape unit was manufactured. The manufacturing method of this optical fiber is described below with reference to FIG.
- a primary coating layer 1 made of a UV-curable resin is used on the optical fiber 17 having an outer diameter of about 0.125 mm.
- an overcoat layer 13 made of an ultraviolet-curable resin was formed on the optical fiber to obtain an optical fiber 10 having an outer diameter of about 0.50 mm.
- the overcoat layer 13 has a Young's modulus of about 230 MPa and a cross-sectional area of about 0.145 mm 2 .
- a cylindrical overcoat layer having a lens effect is coated on the optical fiber. This lens effect is particularly effective when the outer diameter of the optical fiber is 0.7 mm or less (colored outer diameter Z outer diameter of overcoat layer ⁇ 37%).
- optical fiber is coated with a colored overcoat layer by mixing a coloring agent into a cylindrical shape.
- the optical fiber tape unit 12 has a major axis of about 2.55 mm and a minor axis of about 0.52 mm, and the four optical fiber cores 10 are connected by an ultraviolet curable resin.
- the connecting member 11 has a Young's modulus of about 320 MPa and a cross-sectional area of about 0.411 mm 2 .
- Cable section 18 has a jacket thickness of 2.Omm, outer diameter of 9.5 mm.
- a steel wire having a diameter of 0.7 mm is used as the tensile member 23, and a polyester fiber string having a diameter of 1. Omm is used as the sheath tearing cord 21.
- the supporting wire portion 19 a zinc-coated steel wire obtained by twisting seven steel wires each having a diameter of 1.4 mm is used, and a sheath 25 is formed on the outer periphery thereof. Then, a neck portion 24 having slits at regular intervals is formed between the cable portion 18 and the support wire portion 19 so that the slack rate of the cable portion 18 with respect to the support wire portion 19 becomes 0.2% or more.
- the sheath 20 of the cable portion 18, the sheath 25 of the support wire portion 19, and the neck portion 24 are simultaneously formed by extruding low-density polyethylene, which is a thermoplastic resin, and covering them at once.
- This fiber optic cable has an overall height of 17 mm.
- the optical fiber tape unit of the present invention uses an optical fiber core having an outer diameter of 0.4 mm or more provided with an overcoat layer, and arranging a plurality of the optical fiber cores in parallel to form an overcoat.
- the layer has a Young's modulus El and a cross-sectional area A1 and the connecting member has a Young's modulus El and a cross-sectional area E2
- the layers are connected by a connecting member that satisfies the relationship of E1 ⁇ E2 and EIEIAl ⁇ E2 ⁇ A2. Formed.
- the work of separating the optical fiber tape unit into the optical fiber core can be easily performed manually, and the overcoat layer of the optical fiber core is prevented from being broken during the separation. it can. Therefore, the optical fiber tape unit of the present invention can have good single-core separation performance.
- the optical fiber cable of the present invention is composed of the above optical fiber tape unit, so that it can be easily handled at the time of branching.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/578,048 US20080056653A1 (en) | 2004-04-14 | 2005-04-12 | Optical Fiber Tape Unit and Optical Fiber Cable |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-119186 | 2004-04-14 | ||
JP2004119186A JP4442296B2 (ja) | 2004-04-07 | 2004-04-14 | 光ファイバテープユニット及び光ファイバケーブル |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005101080A1 true WO2005101080A1 (ja) | 2005-10-27 |
Family
ID=35150140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007094 WO2005101080A1 (ja) | 2004-04-14 | 2005-04-12 | 光ファイバテープユニット及び光ファイバケーブル |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080056653A1 (ja) |
KR (1) | KR20070010148A (ja) |
CN (1) | CN1942798A (ja) |
WO (1) | WO2005101080A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4968754B1 (ja) * | 2011-03-30 | 2012-07-04 | 昭和電線ケーブルシステム株式会社 | 光ファイバテープ心線および光ケーブル |
JP5564026B2 (ja) * | 2011-10-18 | 2014-07-30 | 株式会社フジクラ | 光ファイバテープ心線及びその光ファイバテープ心線を収納した光ファイバケーブル |
JP5391296B2 (ja) * | 2012-03-02 | 2014-01-15 | 株式会社フジクラ | 光ファイバテープ心線及びその光ファイバテープ心線を収納した光ファイバケーブル |
EP2845043A4 (en) | 2012-05-02 | 2015-12-16 | Fujikura Ltd | SMALL DIAMETER AND ROUND OPTIC CABLES WITH STRUCTURE OF OPTICAL FIBERS OF RIBBON TYPE |
JP5852045B2 (ja) * | 2013-05-07 | 2016-02-03 | 株式会社フジクラ | 光ファイバテープ心線及び光ファイバケーブル |
JP6581767B2 (ja) * | 2014-10-06 | 2019-09-25 | 古河電気工業株式会社 | 光ファイバケーブルおよび光ファイバケーブル敷設方法 |
AU2016303210A1 (en) * | 2015-07-31 | 2018-03-08 | Corning Optical Communications LLC | Rollable optical fiber ribbon |
CN105487189A (zh) * | 2016-02-01 | 2016-04-13 | 烽火通信科技股份有限公司 | 一种用于室内布线的隐形带状光缆 |
MX2019001201A (es) * | 2016-07-27 | 2019-08-21 | Prysmian Spa | Cinta de fibra optica flexible. |
CN111650704A (zh) * | 2020-04-29 | 2020-09-11 | 成都亨通光通信有限公司 | 一种室内外四芯带蝶形光缆及其工艺流程 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01152405A (ja) * | 1987-12-09 | 1989-06-14 | Furukawa Electric Co Ltd:The | 光フアイバテープ心線 |
JPH06258557A (ja) * | 1993-03-04 | 1994-09-16 | Sumitomo Electric Ind Ltd | 被覆光ファイバユニット |
JPH10332996A (ja) * | 1997-06-03 | 1998-12-18 | Sumitomo Wiring Syst Ltd | プラスチック光ファイバコード |
JPH11109192A (ja) * | 1997-10-06 | 1999-04-23 | Furukawa Electric Co Ltd:The | 光海底ケーブル用光ファイバユニット |
EP0964280A2 (de) * | 1998-06-12 | 1999-12-15 | Alcatel | Optische Faser und Verfahren zum Kennzeichnen einer optischen Faser |
EP1139135A1 (en) * | 2000-03-29 | 2001-10-04 | Alcatel | Identification scheme for splittable ribbon products |
JP2002107590A (ja) * | 2000-09-29 | 2002-04-10 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線及びその製造方法 |
JP2002341208A (ja) * | 2001-05-16 | 2002-11-27 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線および光ファイバケーブル |
JP2003029048A (ja) * | 2001-07-19 | 2003-01-29 | Fujikura Ltd | 光ファイバ素線の被覆除去力の推算方法 |
JP2003262770A (ja) * | 2002-03-11 | 2003-09-19 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06211546A (ja) * | 1993-01-18 | 1994-08-02 | Furukawa Electric Co Ltd:The | 帯状体の偏心寸法測定方法と偏心寸法制御装置 |
US6134364A (en) * | 1998-09-18 | 2000-10-17 | Lucent Technologies Inc. | Optical fiber ribbon |
US6731844B2 (en) * | 2001-06-21 | 2004-05-04 | Corning Cable Systems Llc | Identification of optical ribbons |
JP3596511B2 (ja) * | 2001-10-18 | 2004-12-02 | 住友電気工業株式会社 | 光ファイバケーブル |
US7151879B2 (en) * | 2002-11-06 | 2006-12-19 | Sumitomo Electric Industries, Ltd. | Optical fiber ribbon that is easily branched into individual optical fibers and optical fiber cable using the same |
US7206482B2 (en) * | 2004-03-25 | 2007-04-17 | Corning Cable Systems, Llc. | Protective casings for optical fibers |
US7184634B2 (en) * | 2004-03-25 | 2007-02-27 | Corning Cable Systems, Llc. | Fiber optic drop cables suitable for outdoor fiber to the subscriber applications |
WO2005101081A1 (ja) * | 2004-04-14 | 2005-10-27 | Hitachi Cable, Ltd. | 光ファイバテープユニット及び光ファイバケーブル |
-
2005
- 2005-04-12 US US11/578,048 patent/US20080056653A1/en not_active Abandoned
- 2005-04-12 WO PCT/JP2005/007094 patent/WO2005101080A1/ja active Application Filing
- 2005-04-12 KR KR1020067021287A patent/KR20070010148A/ko not_active Application Discontinuation
- 2005-04-12 CN CNA200580011147XA patent/CN1942798A/zh active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01152405A (ja) * | 1987-12-09 | 1989-06-14 | Furukawa Electric Co Ltd:The | 光フアイバテープ心線 |
JPH06258557A (ja) * | 1993-03-04 | 1994-09-16 | Sumitomo Electric Ind Ltd | 被覆光ファイバユニット |
JPH10332996A (ja) * | 1997-06-03 | 1998-12-18 | Sumitomo Wiring Syst Ltd | プラスチック光ファイバコード |
JPH11109192A (ja) * | 1997-10-06 | 1999-04-23 | Furukawa Electric Co Ltd:The | 光海底ケーブル用光ファイバユニット |
EP0964280A2 (de) * | 1998-06-12 | 1999-12-15 | Alcatel | Optische Faser und Verfahren zum Kennzeichnen einer optischen Faser |
EP1139135A1 (en) * | 2000-03-29 | 2001-10-04 | Alcatel | Identification scheme for splittable ribbon products |
JP2002107590A (ja) * | 2000-09-29 | 2002-04-10 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線及びその製造方法 |
JP2002341208A (ja) * | 2001-05-16 | 2002-11-27 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線および光ファイバケーブル |
JP2003029048A (ja) * | 2001-07-19 | 2003-01-29 | Fujikura Ltd | 光ファイバ素線の被覆除去力の推算方法 |
JP2003262770A (ja) * | 2002-03-11 | 2003-09-19 | Sumitomo Electric Ind Ltd | 光ファイバテープ心線 |
Also Published As
Publication number | Publication date |
---|---|
US20080056653A1 (en) | 2008-03-06 |
CN1942798A (zh) | 2007-04-04 |
KR20070010148A (ko) | 2007-01-22 |
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