Pressive bending resistance optical cable and manufacturing method thereof

A technology of anti-bending and optical cables, which is applied in the manufacturing field of pressure-resistant and anti-bending optical cables. Effect of interruption, good temperature performance

Inactive Publication Date: 2010-07-28
SHENZHEN SDGI OPTICAL NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor bending and extrusion ability of optical cables in the prior art, it is necessary to provide a pressure-resistant and bending-resistant optical cable

Method used

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  • Pressive bending resistance optical cable and manufacturing method thereof
  • Pressive bending resistance optical cable and manufacturing method thereof
  • Pressive bending resistance optical cable and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The pressure-resistant and bending-resistant optical cable of the present invention will be described in detail below with reference to the figures.

[0023] see figure 1 , is a schematic cross-sectional structure diagram of a preferred embodiment of the pressure-resistant and bending-resistant optical cable of the present invention. like figure 1 As shown, the pressure-resistant and bending-resistant optical cable 100 has a circular cross-section, including an optical fiber 101 , a first tight cladding 102 , a second tight cladding 103 , an aramid yarn 104 and a sheath 105 arranged sequentially from inside to outside. The first tight envelope 102 and the second tight envelope 103 constitute a tight envelope. The optical fiber 101 , the first tight cladding 102 and the second tight cladding 103 together form a tight-buffered fiber 106 . Wherein, the sheath 105 can be made of flame retardant materials such as PVC (Polyvinylchlorid, polyvinyl chloride), LSZH (Low Smoke...

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PUM

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Abstract

The invention discloses a pressive bending resistance optical cable, which comprises an optical fiber, a first cladding layer, a second cladding layer, an aramid yarn and a sheath arranged front inside to outside in turn. The first cladding layer has flexible texture and the second cladding layer has hard texture. For the pressive bending resistance optical cable, the optical fiber capable of being bent in small radius and the cladding layers made of a special pressive bending resistance (PBR) material are adopted, and the pressive bending resistance optical cable allows small-radius bending and rigorous side pressure and has wider working temperature range than similar optical fibers. The pressive bending resistance optical cable can be arranged in small radius and even at a right angle, and is fearless of vehicle running and foot treading after the arrangement, can completely replace a copper wire to be arranged indoors on a national scale, is particularly suitable for an occasion that a great number of cables are arranged in a small space and in the small radius, such as right-angle bending arrangement, winding in a miniature cabinet, and arrangement and winding in a crowded pipe hole or a cabinet. The invention also discloses a method for manufacturing the pressive bending resistance optical cable.

Description

technical field [0001] The invention relates to an optical cable, in particular to a pressure-resistant and bending-resistant optical cable using a new type of PBR (Pressive Bending Resistance) tight-packing material, which has the characteristics of strong pressure resistance, good bending resistance, and wide temperature range. The present invention also relates to a manufacturing method of the above-mentioned pressure-resistant and bending-resistant optical cable. Background technique [0002] Under the background of "light in and copper out" and energy saving and emission reduction, it has become a trend to use optical cables instead of copper cables to enter buildings. With the rapid development of fiber-to-the-home (FTTH, Fiber To The Home) network construction, optical cables are required to have higher pressure resistance and bending resistance. [0003] The FTTH network can integrate video, Internet, telephone and other services based on different lines and equipme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 郭建民吴金良梁振宇张朝魏杰
Owner SHENZHEN SDGI OPTICAL NETWORK TECH
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