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Manufacturing method of optical fiber connector

A technology of optical fiber connector and manufacturing method, which is applied in the field of optical fiber communication, can solve the problems of low production efficiency, difficulty, and precision control below 1 μm, and achieve the effects of low production cost, simple manufacturing process, and high precision

Active Publication Date: 2006-06-28
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

The machining accuracy of the V-shaped groove is ±5μm. In order to ensure the accuracy of the V-shaped groove, it needs to be corrected by cutting and polishing. The process is cumbersome and the production efficiency is low.
In addition, with ZrO 2 For ceramics, the accuracy of the distance between the holes is ±2μm. Due to the stress during processing, the crystal structure changes from tetragonal to monoclinic during sintering, which causes the connector to expand and affects the dimensional accuracy.
The optical fiber connectors and optical fiber array connectors prepared by these methods can be reinforced with adhesives after the optical fibers are inserted, and the operation is relatively simple, but the accuracy of the distance between the through holes with more than two holes is affected by forming, sintering, Due to the influence of various factors in the processing process, it is very difficult to control the accuracy below 1 μm

Method used

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  • Manufacturing method of optical fiber connector
  • Manufacturing method of optical fiber connector
  • Manufacturing method of optical fiber connector

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A 5mW femtosecond laser with a pulse frequency of 10Hz and a wavelength of 800nm ​​was focused to 10μm above the surface of the polished substrate through a 100× lens, and scanned at 5μm / s to form 10 lines with an interval of 200μm. Then soak it in 4wt% hydrofluoric acid solution, apply ultrasonic wave for 1 hour, take it out and observe it under a microscope, it shows that V-shaped grooves are formed, and the dimensional accuracy between the grooves is 200±0.4μm. Put the optical fiber in the groove, and fix the optical fiber, the pressing plate and the substrate with the pressure plate and adhesive made of the same material as the substrate to form a connector for optical communication.

Embodiment 2

[0040] A 200mW femtosecond laser with a pulse frequency of 1kHz and a wavelength of 750nm was focused on the surface of the polished substrate through a 50× lens, and scanned at 100μm / s to form 10 lines with an interval of 200μm. Then soak it in 4wt% hydrofluoric acid solution, apply ultrasonic wave for 1 hour, take it out and observe it under a microscope, it shows that V-shaped grooves are formed, and the dimensional accuracy between the grooves is 200±0.4μm. Put the optical fiber in the groove, and fix it with the pressure plate and adhesive made of the same material as the substrate to form a connector for optical communication.

Embodiment 3

[0042] A 400mW femtosecond laser with a pulse frequency of 200kHz and a wavelength of 850nm was focused to 10 μm below the surface of the polished substrate through a 5× lens, and scanned at 5000 μm / s to form 10 lines with an interval of 200 μm. Then soak it in 4wt% hydrofluoric acid solution, apply ultrasonic wave for 1 hour, take it out and observe it under a microscope, it shows that U-shaped grooves are formed, and the dimensional accuracy between the grooves is 200±0.4 μm. Put the optical fiber in the groove, and fix it with the pressure plate and adhesive made of the same material as the substrate to form a connector for optical communication.

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Abstract

A method for preparing optical fiber connector includes applying process of femtosecond laser shining and chemical processing to treat base plate surface of quarts glass, borate glass and micro crystal glass to work out V form micro channel or U form micro channel, then placing optical fiber in micro channel and using adhesive to fix a press - plate cover over on base plate.

Description

technical field [0001] The invention relates to optical fiber communication, which is a method for manufacturing an optical fiber connector for optical communication combined with femtosecond pulse laser irradiation and chemical treatment. Background technique [0002] So far, the connectors and fiber array connectors used to fix optical fibers, connect optical fibers and optical communication components, and optical fibers are generally machined into V-shaped grooves on the surface of microcrystalline glass, silicon substrate, quartz glass, etc., or use ZrO 2 Ceramics are produced by using a metal mold as a blank, then sintered and finally machined to form the pores. The machining accuracy of the V-shaped groove is ±5μm. To ensure the accuracy of the V-shaped groove, it needs to be corrected by cutting and polishing. The process is cumbersome and the production efficiency is low. In addition, with ZrO 2 For ceramics, the accuracy of the distance between the holes is ±2μm....

Claims

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Application Information

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IPC IPC(8): G02B6/38
Inventor 姜雄伟邱建荣朱从善
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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