an optical fiber
An optical fiber, fiber core technology, applied in glass fiber, cladding fiber, optical waveguide light guide, etc., can solve the problems of high micro-bending loss of optical fiber and poor air tightness of the coating layer, achieve small thickness, improve performance, Uniform carbonization effect
Active Publication Date: 2019-04-23
中国化学纤维工业协会 +1
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Problems solved by technology
[0005] The embodiment of the present application solves the problems of high microbending loss and poor airtightness of the coating layer in the prior art by providing an optical fiber
Method used
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[0024] The embodiment of the present application provides an optical fiber, which solves the problems of high microbending loss and poor airtightness of the coating layer in the prior art.
[0025] The technical solution of the embodiment of the present application is to solve the above-mentioned technical problems, and the general idea is as follows:
[0026] An optical fiber, the optical fiber comprising: a core; a cladding surrounding the core; a double coating layer, the double coating layer comprising a first coating layer and a second coating layer, The first coating layer is an inner coating surrounding the cladding; the second coating layer is an outer coating coated on the inner coating; the double coating is heated After treatment, it is modified into a carbonized state.
[0027] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings ...
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Abstract
The invention belongs to the technical field of optical fiber communication, and discloses an optical fiber. The optical fiber comprises a fiber core, a cladding layer and double coating layers, wherein the cladding layer clads around the fiber core; the double coating layers comprise a first coating layer and a second coating layer; the first coating layer is an inner coating layer which coats around the cladding layer; the second coating layer is an outer coating layer which coats the inner coating layer; the double coating layers are modified into carbonization states after heat treatment. The optical fiber disclosed by the invention has the following technical effects that the adhesivity between the coating layers and the fiber core of the optical fiber can be effectively enhanced by carbonizing the coating layers, and hermetic sealing openings are provided by the carbonized coating layers, so that enough mechanical strength can be maintained by the optical fiber, and transmission loss of the optical fiber caused by micro bending can be prevented from happening; in addition, the evaporation of organics in an acrylic polymer and the exhausting under a heating or decompression condition can be reduced by a carbonized modification optical fiber, and the performance of the optical fiber can be increased.
Description
technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to an optical fiber. Background technique [0002] Widely used for their ability to carry large amounts of information over long distances, optical fibers are gaining in importance in communications. Optical fiber surfaces are highly susceptible to abrasion and other external environmental contaminants. At the same time, in order to facilitate its long-distance transmission, it is usually necessary to coat the optical fiber with a protective coating to protect it. Optical fibers generally comprise a core, a cladding and at least two coatings, namely a first coating (inner coating) and a second coating (outer coating). The inner coating is applied directly to the cladding and forms a soft, elastic material when cured. The inner coating acts as a buffer to cushion and protect the core when the optical fiber is bent, bundled or spooled. Stress applied to the opti...
Claims
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IPC IPC(8): G02B6/02
CPCG02B6/02395
Inventor 端小平万蕾郭建伟林世东刘少轩李增俊张凌清吕佳滨李德利白濛白洁邓军杨涛靳高岭
Owner 中国化学纤维工业协会