CN201364407Y - 高性能光纤单元 - Google Patents

高性能光纤单元 Download PDF

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Publication number
CN201364407Y
CN201364407Y CNU200920079674XU CN200920079674U CN201364407Y CN 201364407 Y CN201364407 Y CN 201364407Y CN U200920079674X U CNU200920079674X U CN U200920079674XU CN 200920079674 U CN200920079674 U CN 200920079674U CN 201364407 Y CN201364407 Y CN 201364407Y
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China
Prior art keywords
optical fiber
fiber unit
resin layer
curing resin
performance optical
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Expired - Fee Related
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CNU200920079674XU
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English (en)
Inventor
王豫贵
赵秋香
王晗
罗毅
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HUIYUAN OPTICAL COMMUNICATION CO Ltd SICHUAN
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HUIYUAN OPTICAL COMMUNICATION CO Ltd SICHUAN
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479Manufacturing methods of optical cables
    • G02B6/4485Installing in protective tubing by fluid drag during manufacturing

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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

本实用新型提供了一种高性能光纤单元,包括至少一根光纤,包覆在光纤上的固化树脂层,位于固化树脂层外的护套,护套外表面分布有凹槽。本实用新型利于提高气吹距离,适用于室内吹敷设用。

Description

高性能光纤单元
技术领域:
本实用新型涉及一种光纤单元,特别与主要用于室内气吹敷设用的高性能光纤单元有关。
背景技术:
气吹敷设是近几年发展起来的最常用的光缆敷设方式之一,光缆在敷设时采用气吹机随气流徐徐送入微管道中,缆身受力均匀,外护层无损伤划破,缆芯结构没被破坏,保证了光纤传输性能不受影响,彻底解决了传统方法敷设光缆过程中容易将光缆拉伤、扭伤和刮伤的现象。现在这种方式也应用在室内光缆的布放中,现有的适合室内气吹布放的光纤单元通常是将一根或数根光纤(带)经过树脂涂覆、固化而形成的外径在0.4mm到3.0mm的光单元,在其表面还可能有为改善气吹距离而喷射上的小玻璃珠,其在实际气吹过程中与微管道内壁发生摩擦经常会出现固化层开裂,玻璃珠脱落等现象,由于室内布放的微管道尺寸一般为5.0mm/3.5mm,脱落的固化层或玻璃珠容易堵塞管道,出现气吹距离短,敷设后光纤单元传输性能受影响等情况。
实新型内容:
本实用新型的目的是为了克服以上不足,提供一种利于提高气吹距离,适用于室内吹敷设用的高性能光纤单元。
本实用新型的目的是这样来实现的:
本实用新型高性能光纤单元,包括至少一根光纤,包覆在光纤上的固化树脂层,位于固化树脂层外的护套,护套外表面分布有凹槽。
上述的固化树脂层与护套间有填充复合物层。
本实用新型光纤单元中护套表面上的凹槽可经挤出模具形成。本实用新型光缆在保证了一定的刚度前提下,其表面的凹槽有利于提高气吹距离,适用于室内气吹敷设用。本实用新型室内气吹敷设用高性能光纤单元外径在0.8mm到3.0mm,适用于气吹在3.5mm/5.0mm微管道中,气吹距离在700m以上。
附图说明:
图1为本实用新型结构示意图。
具体实施方式:
参见图1,本实施例高性能光纤单元,包括多根光纤1,包覆在光纤上的固化树脂层2,位于固化树脂层外的护套4,护套外表面分布有凹槽5。固化树脂层与护套间有填充复合物层3。

Claims (2)

1、高性能光纤单元,其特征是包括至少一根光纤,包覆在光纤上的固化树脂层,位于固化树脂层外的护套,护套外表面分布有凹槽。
2、如权利要求1所述的高性能光纤单元,其特征在于固化树脂层与护套间有填充复合物层。
CNU200920079674XU 2009-03-20 2009-03-20 高性能光纤单元 Expired - Fee Related CN201364407Y (zh)

Priority Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122049A (zh) * 2010-10-13 2011-07-13 成都亨通光通信有限公司 微型半紧套气吹光纤单元
WO2013174193A1 (zh) * 2012-05-24 2013-11-28 长飞光纤光缆有限公司 全干式中心管式气吹微型光缆
CN106125241A (zh) * 2016-08-30 2016-11-16 江苏中天科技股份有限公司 一种气吹用高强度微型色条光纤单元
US20210382255A1 (en) * 2019-12-11 2021-12-09 Fujikura Ltd. Optical fiber cable

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102122049A (zh) * 2010-10-13 2011-07-13 成都亨通光通信有限公司 微型半紧套气吹光纤单元
WO2013174193A1 (zh) * 2012-05-24 2013-11-28 长飞光纤光缆有限公司 全干式中心管式气吹微型光缆
CN106125241A (zh) * 2016-08-30 2016-11-16 江苏中天科技股份有限公司 一种气吹用高强度微型色条光纤单元
US20210382255A1 (en) * 2019-12-11 2021-12-09 Fujikura Ltd. Optical fiber cable
CN114258503A (zh) * 2019-12-11 2022-03-29 株式会社藤仓 光纤电缆
US11782228B2 (en) * 2019-12-11 2023-10-10 Fujikura Ltd. Optical fiber cable
CN114258503B (zh) * 2019-12-11 2023-12-08 株式会社藤仓 光纤电缆

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Assignee: Sichuan Huiyuan Ji Xun Digital Technology Co., Ltd.

Assignor: Huiyuan Optical Communication Co., Ltd., Sichuan

Contract record no.: 2010510000091

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