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Device and method for preparing high-brightness optical fiber

An optical fiber and high-brightness technology, applied in the direction of bundles of optical fibers, can solve problems such as low product quality, low production capacity, and insufficient fiber brightness to meet requirements, and achieve the effect of large quantities and high brightness

Inactive Publication Date: 2019-05-31
南京威斯顿光纤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of low production stability and low production capacity during the synthesis of optical fiber bundles, resulting in low product quality and insufficient optical fiber brightness. The present invention provides a device for preparing high-brightness optical fibers, including pumping Vacuum equipment, heat melting furnace, optical fiber silicone tube, glass tube; the optical fiber is located in the optical fiber silicone tube, and one end of the optical fiber extends out of the optical fiber silicone tube by 100-140mm; the optical fiber extending out of the optical fiber silicone tube is placed in the glass tube, pre- Leave 4-8mm of optical fiber exposed outside the glass tube; wherein the vacuuming equipment includes a vacuuming interface, a vacuuming power device, and a vacuuming tooling, and the vacuuming tooling is provided with a cavity structure along the central axis , the cavity structure is used to accommodate the optical fiber and optical fiber silicone tube; a vacuum interface is provided on the outer wall of the vacuum tooling, and one end of the vacuum interface is connected to a vacuum power device

Method used

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  • Device and method for preparing high-brightness optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The optical fiber 2 to be contracted is inserted into the optical fiber silicone tube 5, and one end extends out of the optical fiber silicone tube 5 with a length of 130 mm. The front end of the extended optical fiber 2 penetrates into the glass tube 3 and the reserved 5 mm optical fiber 2 is exposed to the glass tube 3 outside; place the optical fiber silicone tube 5, glass tube 3, and optical fiber 2 in the cavity structure of the vacuuming tool 43, and the glass tube 3 is set outside the cavity structure; use the fiber silicone 5 and the vacuuming tool 43 at the connection point Tape sealing;

[0019] Connect the vacuuming interface 41 and the vacuuming power device 42, set the end of the optical fiber 2 close to the hot melting furnace 6 at 3-6 cm, and then set the temperature of the hot melting furnace 1 to 800°C, calculate the time based on the diameter of the fiber, and then shrink it. Until the finished product is obtained, the wire at the front end of the glass t...

Embodiment 2

[0021] The optical fiber 2 to be contracted is inserted into the optical fiber silicone tube 5, and one end extends out of the optical fiber silicone tube 5 with a length of 100 mm. The front end of the extended optical fiber 2 penetrates into the glass tube 3 and the reserved 4 mm optical fiber 2 is exposed to the glass tube 3 outside; place the optical fiber silicone tube 5, glass tube 3, and optical fiber 2 in the cavity structure of the vacuuming tool 43, and the glass tube 3 is set outside the cavity structure; use the fiber silicone 5 and the vacuuming tool 43 at the connection point Tape sealing;

[0022] Connect the vacuuming interface 41 and the vacuuming power unit 42, set the end of the optical fiber 2 close to the hot melting furnace 6 at 3-6 cm, and then set the temperature of the hot melting furnace 1 to 600°C, calculate the time based on the diameter of the fiber, and then shrink it. Until the finished product is obtained, the wire at the front end of the glass tub...

Embodiment 3

[0024] The optical fiber 2 to be contracted is inserted into the optical fiber silicone tube 5, one end extends out of the optical fiber silicone tube 5, and the length is 140mm. The front end of the extended optical fiber 2 penetrates into the glass tube 3 and the reserved 8mm optical fiber 2 is exposed to the glass tube 3 outside; place the optical fiber silicone tube 5, glass tube 3, and optical fiber 2 in the cavity structure of the vacuuming tool 43, and the glass tube 3 is set outside the cavity structure; use the fiber silicone 5 and the vacuuming tool 43 at the connection point Tape sealing;

[0025] Connect the vacuuming interface 41 and the vacuuming power device 42, set the end of the optical fiber 2 close to the hot melting furnace 6 at 3-6 cm, and then set the temperature of the hot melting furnace 1 to 900°C, calculate the time based on the diameter of the fiber, and then shrink it. Until the finished product is obtained, the wire at the front end of the glass tube ...

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Abstract

The invention provides a device for preparing a high-brightness optical fiber. The device comprises a vacuumizing device, a hot melting furnace, an optical fiber silicone tube and a glass tube; the optical fiber is located in the optical fiber silicone tube; one end of the optical fiber extends out of the optical fiber silicone tube by 100-140 mm; the optical fiber which extend out of the opticalfiber silicone tube is arranged in the glass tube, with an optical fiber section of 4-8 mm reserved for being exposed outside the glass tube; and the vacuumizing device includes a vacuumizing interface, a vacuumizing power device, and a vacuumizing tool. The invention also provides a method for preparing the high-brightness optical fiber. According to the method, high-temperature and vacuumizing technologies are adopted; corresponding heating temperature, time and post-processing technical parameters are set, so that a prepared optical fiber bundle can be used under a temperature of 500 degrees Celsius; and the optical fiber bundle has excellent high temperature resistance and high brightness.

Description

Technical field [0001] The invention relates to the field of optical fibers, in particular to a device and method for preparing high-brightness optical fibers. Background technique [0002] Deep fiber laser has the advantages of high conversion efficiency, good beam quality, compact structure, easy heat dissipation, and good working stability. It has been widely used in industry and national defense. However, limited by mechanisms such as fiber nonlinear effects and optical thermal damage, the output power of a single fiber laser cannot be increased indefinitely. In order to obtain a larger fiber laser output, combining multiple medium-power fiber lasers is an effective method, and the key component required is a fiber combiner. Compared with the beam combining scheme of the space structure, the fiber combiner of the all-fiber structure has the advantages of simple and compact structure, flexible use, etc., can avoid the adjustment of the spatial optical path, and its power incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/04
Inventor 洪时胜
Owner 南京威斯顿光纤科技有限公司