Snakelike optical cable

An optical cable and serpentine technology, which is applied in the field of serpentine optical cables, can solve the problems of easy breakage of optical fibers and cables, which have not been well solved, and achieve the effect of novel overall structure design.

Inactive Publication Date: 2016-10-12
NANJING WASIN FUJIKURA OPTICAL COMM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Optical cables are mainly composed of optical fibers (glass filaments as thin as hair), plastic protective sleeves and plastic sheaths. Due to different environments, the optical cables used in different environments are also very different. However, the shortcoming of fiber optic cables that are easy to break restricts the use of optical signals to transmit information in these occasions.
Those skilled in the art have tried new solutions for many times, but this problem has not been well resolved. Therefore, there is an urgent need for a new solution to solve this technical problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1 : as shown 1- picture 3 , a serpentine optical cable comprising an outer sheath 1 , the outer sheath is equipped with a multi-core sub-unit 2 , the outer sheath 1 Set as PPT Serpentine tube sheath, the optical cable is a serpentine optical cable, using bend-insensitive optical fiber, to ensure that the additional attenuation is small enough when used in bending situations. The outer sheath is configured as a cavity structure, which is convenient for the subunit to move in the cavity.

Embodiment 2

[0014] Example 2 : as shown 1- picture 3 , as an improvement of the present invention, the multi-core sub-units sequentially include sheath layers from outside to inside 3 , Aramid layer 5 and colored fiber optics set inside 4 , the outer sheath is set as a cavity structure, the sheath layer 3 It is a cylindrical structure, and the number of colored fibers is 2-12 core. The sub-unit adopts a low-friction sheath and cooperates with the structure of the cavity to ensure that the sub-unit has enough room for movement in the cavity and will not be excessively bent when the optical cable is bent; PPT The serpentine tube sheath ensures that the optical cable will not continue to bend after bending to the designed minimum bending radius, so as to achieve super bending resistance.

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PUM

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Abstract

The invention relates to a snakelike optical cable, which is characterized by comprising an outer sheath, wherein a multi-core subunit is arranged in the outer sheath, the outer sheath is configured to be a PPT snakelike pipe sheath, and the multi-core subunit comprises a sheath layer, an aramid fiber layer and internally-arranged colored optical fibers from outside to inside in sequence. The optical cable provide by the invention is in a snakelike shape, adopts bend-insensitive optical fibers, and ensures that the additional attenuation is small enough when used in a bending occasion; meanwhile, the subunit adopts the low-friction sheath cooperated with the structure of an empty cavity, so as to ensure that the subunit has enough movement space in the empty cavity without overbending when the optical fiber is bent; and the snakelike optical cable adopts the PPT snakelike pipe sheath, and ensures that the optical fiber does not bend continuously after bending to the designed minimum bending radius, thereby achieving the super bending resistance capability.

Description

technical field [0001] The invention relates to an optical cable, in particular to a serpentine optical cable. Background technique [0002] Optical cables are manufactured to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly that uses one or more optical fibers placed in a sheath as a transmission medium and can be used individually or in groups. Optical cables are mainly composed of optical fibers (glass filaments as thin as hair), plastic protective sleeves and plastic sheaths. Due to different environments, the optical cables used in different environments are also very different. However, the shortcoming of fiber optic cables that are easy to break restricts the use of optical signals to transmit information in these occasions. Those skilled in the art have tried new solutions for many times, but this problem has not been well solved. Therefore, a new solution to solve this technical problem is urgently needed. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443
Inventor 吉松松
Owner NANJING WASIN FUJIKURA OPTICAL COMM LTD
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