Enhanced fiber

A reinforced fiber optic technology, applied in cladding optical fiber, light guide, optics, etc., can solve the problems of weather resistance, poor heat resistance, easy deterioration and yellowing of coating materials, and achieve good yellowing resistance and transmission The effect of low loss and strong fracture resistance

Inactive Publication Date: 2016-06-01
WUXI NANLIGONG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As the material used in the primary coating layer and the secondary coating layer, ultraviolet curable resin is often used; as the ultraviolet curable resin used in the coating material of optical fiber, urethane acrylate is known, but the existing coated optical fiber is exposed to heat. , light, its covering material is easy to deteriorate, if it is placed outdoors or under the conditions of light such as fluorescent lamps or high heat for a long time, it will cause color development or discoloration such as yellowing, and the so-called weather resistance and heat resistance are not good

Method used

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  • Enhanced fiber

Examples

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Embodiment 1

[0014] Embodiment 1: as figure 1 As shown, the reinforced optical fiber includes a core 4 and a cladding, the core 4 is composed of two doped cores 4 with different refractive indices, and the cladding surrounds the core 4 at the periphery of the core 4 , the cladding includes a primary coating layer 2 and a secondary coating layer 1 formed of an ultraviolet curable resin, the ultraviolet curable resin contains urethane acrylate and a photoinitiator and the polyisocyanate component in the urethane acrylate is aromatic Polyisocyanate-like; a reinforcing core layer 3 is arranged between the primary coating layer 2 and the fiber core 4, and the periphery of the reinforcing core layer is twisted and wrapped in the fiber core 4 in the primary coating layer 2; the The reinforcing core layer 3 is provided with a number of mutually independent reinforcing ribs 301 at intervals along the radial direction; the reinforcing ribs 301 are cross-shaped when viewed from the cross section, and...

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PUM

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Abstract

The present invention relates to an enhanced fiber. The enhanced fiber comprises a fiber core and a cladding; the fiber core is composed of two fiber cores with different refractive indexes through doping, and the cladding winds the outer periphery of the fiber core; the cladding includes a one-time coated layer and a twice coated layer which are formed by ultraviolet ray curing type resin, and the ultraviolet ray curing type resin includes urethane acrylate and a photoinitiator, wherein the polyisocyanate component in the urethane acrylate is aromatic polyisocyanate; an enhanced core layer is arranged between the one-time coated layer and the fiber core, the periphery of the enhanced core layer is combined and wrapped in the fiber core of the one-time coated layer; the twice coated layer has a plurality of holes extending along the central shaft of the fiber, the residual stress in the internal areas at the inner sides of the circumcircles of the holes are compression press, and the compression press is larger than 20MPa; and the enhanced layer has good yellowing resistance, small transmission loss and high breaking ability.

Description

technical field [0001] The invention relates to optical fiber technology for optical communication, in particular to a reinforced optical fiber. Background technique [0002] The general structure of optical fiber is to form a soft primary coating layer on the outer peripheral surface of the original glass fiber, and then form a hard secondary coating layer on its outer periphery. As the material used in the primary coating layer and the secondary coating layer, ultraviolet curable resin is often used; as the ultraviolet curable resin used in the coating material of optical fiber, urethane acrylate is known, but the existing coated optical fiber is exposed to heat. , Light, its coating material is easy to deteriorate, if it is placed outdoors or under the conditions of light such as fluorescent lamps or high heat for a long time, it will cause color development or discoloration such as yellowing, and the so-called weather resistance and heat resistance are not good. This is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036G02B6/02
CPCG02B6/036G02B6/02033G02B6/02347
Inventor 许建中张铁男周鹏陈泉
Owner WUXI NANLIGONG TECH DEV
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