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Preparation method of low-loss phosphate glass optical fiber

A phosphate glass, low-loss technology, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problem of not being able to completely deal with acid impurities, unable to reduce fiber loss, etc., to optimize the process and effect, improve the effect of impurity removal, promote The effect of migration

Pending Publication Date: 2022-05-13
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two deficiencies in this technical solution: first, the acid treatment cannot completely treat the acidic impurities on the surface of the preform; second, the secondary polishing after the acid treatment will introduce new impurities, making this method unable to reduce the The best effect of loss

Method used

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  • Preparation method of low-loss phosphate glass optical fiber
  • Preparation method of low-loss phosphate glass optical fiber
  • Preparation method of low-loss phosphate glass optical fiber

Examples

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Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the low-loss phosphate glass optical fiber of the present invention comprises the following steps:

[0036] 1) described mixed alkali comprises several kinds of alkalis, and its molar percentage is made up of:

[0037]

[0038] Mix the above-mentioned several kinds of alkalis with deionized water according to the molar ratio of 2:50 to form a mixed alkali solution.

[0039] 2) described mixed acid comprises several kinds of acid, and its molar percentage is composed of:

[0040]

[0041] Mix the above-mentioned several acids with deionized water according to the molar ratio of 5:60 to form a mixed acid solution.

[0042] 3) putting the phosphate glass optical fiber preform into the mixed alkali solution, and ultrasonically treating it for 5 minutes;

[0043] 4) Take out the optical fiber preform and put it into deionized water for ultrasonic cleaning for 10 minutes;

[0044] 5) Repeat the above mixed alkali treatment and deionized wate...

Embodiment 2

[0055] This embodiment includes the following steps:

[0056] 1) described mixed alkali comprises several kinds of alkalis, and its molar percentage is made up of:

[0057]

[0058] Mix the above-mentioned several kinds of alkalis with deionized water according to the molar ratio of 2:80 to form a mixed alkali solution;

[0059] 2) described mixed acid comprises several kinds of acid, and its molar percentage is composed of:

[0060]

[0061] Mix the above-mentioned several acids with deionized water according to a molar ratio of 5:100 to form a mixed acid solution;

[0062] 3) putting the phosphate glass optical fiber preform into the mixed alkali solution, and ultrasonically treating it for 60 minutes;

[0063] 4) Take out the optical fiber preform and put it into deionized water for ultrasonic cleaning for 20 minutes;

[0064] 5) Repeat the above steps 3), 4) three times, and take out the optical fiber preform;

[0065] 6) Put the optical fiber preform treated wit...

Embodiment 3

[0073] This embodiment includes the following steps:

[0074] 1) described mixed alkali comprises several kinds of alkalis, and its molar percentage is made up of:

[0075]

[0076] Mix the above-mentioned several kinds of alkalis with deionized water according to the molar ratio of 2:75 to form a mixed alkali solution;

[0077] 2) described mixed acid comprises several kinds of acid, and its molar percentage is composed of:

[0078]

[0079] Mix the above-mentioned several acids with deionized water according to a molar ratio of 5:95 to form a mixed acid solution;

[0080] 3) putting the phosphate glass optical fiber preform into the mixed alkali solution, and ultrasonically treating it for 250 minutes;

[0081] 4) Take out the optical fiber preform and put it into deionized water for ultrasonic cleaning for 20 minutes;

[0082] 5) Repeat the above steps 3), 4) three times, and take out the optical fiber preform;

[0083] 6) Put the optical fiber preform treated wit...

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Abstract

The invention relates to a preparation method of a low-loss phosphate glass optical fiber. The method comprises the following steps: carrying out mixed alkali treatment, mixed acid treatment and thermal polishing on a phosphate optical fiber preform. The impurity removal effect of the optical fiber preform is improved, the smoothness of the surface of the preform is improved, light scattering is reduced, the loss of the optical fiber is finally reduced, and the method has the advantages of being simple in process, low in cost and high in practicability and can be widely applied to the field of optical fiber manufacturing.

Description

technical field [0001] The invention relates to a laser optical fiber, in particular to a method for preparing a low-loss phosphate glass optical fiber. Background technique [0002] Phosphate glass fiber has important application value in the fields of ultrashort pulse fiber amplifier, single frequency fiber laser, high repetition frequency fiber laser and so on. However, the transmission loss of phosphate glass fiber is much higher than that of silica fiber. How to reduce the loss of phosphate glass optical fiber has become a research hotspot. Optical fiber losses include Rayleigh scattering of light by the matrix, impurity absorption in the core glass matrix, and interface losses between the core glass and cladding glass. The former cannot be avoided, and the latter two can be reduced through some treatment methods. In the prior art, the Chinese Invention Patent No. CN103663988 and the invention patent titled "Mixed Acid and Treatment Method for Optical Fiber Preform S...

Claims

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Application Information

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IPC IPC(8): C03B37/012C03C23/00C03B29/00
CPCC03B37/012C03C23/0075C03C23/007C03B29/00Y02P40/57
Inventor 孙焰王欣陈辉宇胡丽丽陈树彬王亚飞
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI