Low bending loss low water peak single mode fiber with stable diameter and production process of low water peak single mode fiber

A bending loss, single-mode optical fiber technology, applied in the direction of multi-layer core/clad optical fiber, clad optical fiber, manufacturing tools, etc., can solve the problems of complex refractive index control process, affecting normal use, and large peeling force value. Achieve superior bending resistance, improve work efficiency, and excellent coating peeling performance

Inactive Publication Date: 2013-03-20
ZHONGTIAN TECH FIBER OPTICS
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Problems solved by technology

[0002] In the production process of the existing optical fiber, the control process of the refractive index is relatively complicated, and the success rate is low; the related products of fiber-to-the-home currently in use have problems of large peeling force and residual coating, which affect the normal use

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  • Low bending loss low water peak single mode fiber with stable diameter and production process of low water peak single mode fiber
  • Low bending loss low water peak single mode fiber with stable diameter and production process of low water peak single mode fiber
  • Low bending loss low water peak single mode fiber with stable diameter and production process of low water peak single mode fiber

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[0015] A low water peak single-mode optical fiber with low bending loss and stable diameter. The cladding 1 of the optical fiber has a diameter of 124-125 μm, the inner coating 2 has a diameter of 190-195 μm, and the outer coating 3 has a diameter of 240-246 μm.

[0016] A production process of a low water peak single-mode optical fiber with low bending loss and stable diameter, comprising the following steps:

[0017] (1) Preform wire drawing: Assemble the preform on the drawing tower, start drawing, add F element in the core of the optical fiber, the refractive index profile of the preform is a depressed cladding structure, and the range of the depression is 0.05% to 0.14 %;

[0018] (2) Coating: Coat the semi-finished optical fiber after drawing, and the coating coating adopts UV-curable coating with a modulus controlled at 0.6-1.2MPa;

[0019] (3) Curing: Curing the coated optical fiber. The distance between coating and curing is 1-3 meters. The curing adopts ultraviolet ...

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Abstract

The invention discloses a low bending loss low water peak single mode fiber with a stable diameter. The cladding diameter of the optical fiber is 124-125 mu m, the inner coating diameter is 190-195 mu m, and the outer coating diameter is 240-246 mu m. A production process of the low bending loss low water peak single mode fiber includes the following steps that an F element is added to a core of the optical fiber, the refractive index section of a rod is prefabricated to be a recessed cladding structure, the recessed amplitude is 0.05%-0.14%, and simultaneously, a coating material is subjected to modified optimization. The low water peak single mode fiber is simple in structure, high in practicability, excellent in bending resistance and suitable for being widely used in the industry, simultaneously, stripping performances of coatings are superior to those of similar optical fibers, and the coating stripping time of a single optical fiber is shortened by two seconds.

Description

technical field [0001] The invention relates to a low water peak single-mode optical fiber and a production process thereof, in particular to a low water peak single-mode optical fiber with low bending loss and stable diameter and a production process thereof. Background technique [0002] In the existing optical fiber production process, the control process of the refractive index is relatively complicated, and the success rate is low; currently in use, fiber-to-the-home related products have problems of high peeling force and coating residue, which affect normal use. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to solve the deficiencies in the prior art, to provide a low water peak single-mode optical fiber with good stripping performance and bending resistance, suitable for fiber-to-the-home, low bending loss, stable diameter, and its production craft. [0004] Technical solution: A low water peak single-mode opti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036C03B37/01
Inventor 曹珊珊张家斌张海涛王晔薛驰刘志忠
Owner ZHONGTIAN TECH FIBER OPTICS
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