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Radiation-resistant and high-low-temperature single-mode optical fiber

A high and low temperature resistant, single-mode fiber technology, applied in glass fiber, cladding fiber, optical waveguide light guide, etc., to achieve the effect of low induced loss

Inactive Publication Date: 2018-07-27
上海传输线研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are different grades of radiation-resistant optical fiber and high-temperature-resistant optical fiber products at home and abroad, but there are few optical fiber products with good radiation resistance and high-temperature and low-temperature resistance and related reports

Method used

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  • Radiation-resistant and high-low-temperature single-mode optical fiber
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  • Radiation-resistant and high-low-temperature single-mode optical fiber

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Experimental program
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Effect test

Embodiment 1

[0034] The composition of the quartz core of embodiment 1 is as follows:

[0035] Component element name

mole percent mol%

SiO 2

100

[0036] The composition of the fluorine-doped quartz glass cladding of embodiment 1 is as follows:

[0037] Component element name

mole percent mol%

SiO 2

42

CCl 2 f 2

58

[0038] The preparation method is as follows:

[0039] Step 11. Thin-walled quartz glass liner flame polishing

[0040] A thin-walled quartz glass tube with a single wall thickness of 3 mm is selected as the liner. The outer diameter of the liner is 25 mm, the inner diameter is 19 mm, and the length is 600 mm. Put it on the lathe, by passing SF into the liner 6 Gas and use a hydrogen-oxygen flame to perform high-temperature flame polishing at 2300 ° C to eliminate scratches, impurities, surface unevenness, and shrinkage bubbles on the inner and outer surfaces of the deposition tube. The high-temperat...

Embodiment 2

[0060] The composition of the quartz core of embodiment 2 is as follows:

[0061] Component element name

mole percent mol%

SiO 2

100

[0062] The composition of the fluorine-doped quartz glass cladding of embodiment 2 is as follows:

[0063] Component element name

mole percent mol%

SiO 2

49

CCl 2 f 2

51

[0064] The preparation method is as follows:

[0065] Step 21. Thin-walled quartz glass liner flame polishing

[0066] A thin-walled quartz glass tube with a single wall thickness of 3 mm is selected as the liner. The outer diameter of the liner is 25 mm, the inner diameter is 19 mm, and the length is 600 mm. Put it on the lathe, by passing SF into the liner 6 Gas and use a hydrogen-oxygen flame to perform high-temperature flame polishing at 2300 ° C to eliminate scratches, impurities, surface unevenness, and shrinkage bubbles on the inner and outer surfaces of the deposition tube. The high-temperat...

Embodiment 3

[0086] The composition of the quartz core of embodiment 3 is as follows:

[0087] Component element name

mole percent mol%

SiO 2

100

[0088] The composition of the fluorine-doped quartz glass cladding of embodiment 3 is as follows:

[0089] Component element name

mole percent mol%

SiO 2

59

CCl 2 f 2

41

[0090] The preparation method is as follows:

[0091] Step 31. Thin-walled quartz glass liner flame polishing

[0092] A thin-walled quartz glass tube with a single wall thickness of 3 mm is selected as the liner. The outer diameter of the liner is 25 mm, the inner diameter is 19 mm, and the length is 600 mm. Put it on the lathe, by passing SF into the liner 6 Gas and use a hydrogen-oxygen flame to perform high-temperature flame polishing at 2300 ° C to eliminate scratches, impurities, surface unevenness, and shrinkage bubbles on the inner and outer surfaces of the deposition tube. The high-temperat...

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Abstract

The invention provides a radiation-resistant and high-low-temperature single-mode optical fiber. The optical fiber sequentially comprises a fiber core, a cladding layer and a coating layer from insideto outside, wherein the fiber core is a pure quartz glass fiber core, and the mole percentage of silicon dioxide in the fiber core is 100%; the cladding layer is a fluorine-doped quartz glass cladding layer, and it is regulated that the cladding layer comprises, by mole, 40-60% of dichlorodifluoromethane and the balance silicon dioxide; the coating layer is made of silicon-based modified ultraviolet curing paint. The invention further provides a manufacturing method of the radiation-resistant and high-low-temperature single-mode optical fiber. According to the optical fiber, the induced lossafter radiation is low, the optical fiber is high in radiation-resistant dose and dose rate, optical signals can be stably transmitted in a wide work temperature range, the optical performance is compatible with common communication optical fibers, the large space radiation environment for high-low-temperature alternate conversion of the optical fiber is ensured, and the optical signal transmission communication reliability and environment adaptability in the ground nuclear power plant nuclear explosion test environment high in instantaneous dose rate are ensured.

Description

technical field [0001] The invention relates to the field of optical fibers, in particular to a radiation-resistant, high-temperature, and low-temperature resistant single-mode optical fiber and a manufacturing method thereof. Background technique [0002] When optical fibers are used in aviation, aerospace, nuclear fusion tests and other fields, they face different degrees of radiation threats. Among them, the radiation environment in aerospace and other space applications is characterized by a low dose rate. The total dose received is relatively high; while nuclear fusion and other terrestrial radiation environments are characterized by a short radiation time for optical fibers and a low total dose, but the instantaneous dose rate is relatively high. When the radiation dose rate or the total dose reaches a certain level, the loss, mechanical strength and other characteristics of unoptimized ordinary optical fibers that are not resistant to radiation will deteriorate. In o...

Claims

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Application Information

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IPC IPC(8): G02B6/02
CPCG02B6/02395
Inventor 戎亮杨林邱佳欣顾劭忆冀巍王泽宇
Owner 上海传输线研究所
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