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Chemical stripping method for optical fiber coating layer

A coating layer and optical fiber technology, which is applied in the field of chemical stripping of optical fiber coating layer, can solve the problems affecting the strength and service life of optical fiber, damage to the quartz surface of optical fiber, etc., and achieve the effect of improving surface quality, removing impurities, and enhancing strength

Inactive Publication Date: 2010-02-10
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a chemical stripping method for the optical fiber coating for the defects in the existing optical fiber coating mechanical stripping method. The problem of service life

Method used

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  • Chemical stripping method for optical fiber coating layer
  • Chemical stripping method for optical fiber coating layer
  • Chemical stripping method for optical fiber coating layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: (use chloroform and acetone to carry out soaking according to the solvent that 1:5 mixes)

[0022] In this embodiment, chloroform and acetone are used for soaking in a solvent mixed with a molar ratio of 1:5. The soaking method is as follows: figure 1 As shown; the immersion time is 30 minutes, and the soaked optical fiber together with the rubber tube is placed in an alcohol solvent for ultrasonic oscillation, and the oscillation cleaning time is 30 minutes; the cleaned optical fiber is dried with high-purity nitrogen.

[0023] Use the static fatigue parameter test method to test the strength of the stripped optical fiber, using such as image 3 The test principle of ordinary single-mode fiber is tested, and the test result schematic diagram is as follows figure 2 shown.

Embodiment 2

[0024] Embodiment 2: (the solvent that adopts dichloromethane and methyl ethyl ketone to mix according to 1: 2 carries out immersion)

[0025] In this embodiment, the solvent mixed with dichloromethane and methyl ethyl ketone according to the soaking ratio of 1:2 is used for soaking, and the soaking method is as follows: figure 1 As shown; the immersion time is 30 minutes, and the soaked optical fiber together with the rubber tube is placed in an alcohol solvent for ultrasonic oscillation, and the oscillation cleaning time is 30 minutes; the cleaned optical fiber is dried with high-purity nitrogen.

[0026] Adopt the stripping method that similar embodiment carries out, carry out the design and manufacture of other 6 embodiments again, the stripping process and time control of the optical fiber of 1-8 embodiment are as shown in table 1, the intensity of the optical fiber after stripping The test values ​​are shown in Table 2.

[0027] Example

Soaking Solvent Comb...

Embodiment 9

[0032] Embodiment 9: (the solvent that chloroform and octanone are mixed according to molar ratio 1: 5 is soaked)

[0033] Adopt the solvent that chloroform and octanone are mixed according to the molar ratio of 1:5 to soak, and the soaking method is as follows: figure 1 As shown; the immersion time is 30 minutes, and the soaked optical fiber together with the rubber tube is placed in an alcohol solvent for ultrasonic oscillation, and the oscillation cleaning time is 30 minutes; the cleaned optical fiber is dried with high-purity nitrogen. Other steps are the same as in Example 1. Example 10: (1,4-dichlorobutane and pentanone are soaked in a mixed solvent according to a molar ratio of 1:1)

[0034] Use 1,4-dichlorobutane and pentanone to mix the solvent according to the molar ratio of 1:1 for soaking, the soaking method is as follows figure 1 As shown; the immersion time is 90 minutes, and the soaked optical fiber together with the rubber tube is placed in an alcohol solvent...

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Abstract

The invention discloses a chemical stripping method for an optical fiber coating layer. In the invention, a resin coating layer of optical fiber is soaked and dissolved by a mixed solvent containing enpara and ketone, the optical fiber is placed in an ultrasonic oscillation trough filled with alcohol for clearing after soaking and dissolving, and then the optical fiber after being cleaned clearlyis dried by high-pure nitrogen. The invention solves the problem that the prior method is easy to damage the surface of optical fiber quartz to affect the strength and the service life of the opticalfiber. The invention greatly improves the surface quality of the stripped optical fiber, and strengthens the strength of optical fiber grating devices after inscription.

Description

technical field [0001] The invention relates to an optical fiber processing method in the field of industrial application and optical fiber sensing, in particular to a chemical stripping method for an optical fiber coating layer in the field of optical fiber grating use. Background technique [0002] With the wide application of optical fiber sensing, especially the extensive use of fiber gratings in optical fiber sensing, processed optical fiber products will be widely used in sensing and industrial fields. For example: power temperature measurement system, oil drilling platform pressure and temperature monitoring system, tunnel fire alarm system and other important environments. Among them, the fiber grating sensor uses the fiber grating as the basic sensing unit, which can increase the accuracy and reliability of the fiber sensor. [0003] At present, the general manufacturing method of fiber gratings is: strip off a small part of the coating layer of the purchased optic...

Claims

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Application Information

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IPC IPC(8): C03C25/66
Inventor 涂峰郭江涛韩庆荣
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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