A method and detection equipment for detecting the influence of self-return light on lasers

Abstract

The invention discloses a method and detection equipment for detecting the influence of self-return light on a laser. The method includes: receiving the input light input by the laser; An optical power meter and an adjustable reflector output the first detection light and the second detection light; receive part of the second detection light reflected by the adjustable reflector, and divide the part of the second detection light reflected by the adjustable reflector into The first return light and the second return light, and return the first return light and the second return light to the laser and the first optical power meter respectively; detect the power of the first detection light through the first optical power meter, and pass the second light The power meter detects the power of the second return light; calculates the power of the input light of the laser and the power of the first return light, and establishes a power correspondence between the power of the first return light and the power of the input light of the laser. Through the above method, the present invention can detect the corresponding relationship between the power of the returning light and the power of the input light of the laser.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a method and detection equipment for detecting the influence of self-reflected light on a laser. Background technique [0002] Semiconductor lasers are lasers that use semiconductor materials as the working substance. They have the advantages of small size, high efficiency, simple structure, long life, easy modulation and low price, and are widely used in the electronic field. [0003] However, when the semiconductor laser is working, part of the laser light emitted by itself will return to the inside of the laser chip along the original path, causing the laser power of the semiconductor laser to drop, affecting the quality of the laser beam of the semiconductor laser, and even burning out the laser chip in severe cases. , causing the laser to be scrapped. However, different chips and different packaging modes of semiconductor lasers have different effects of the returned light...

AI Technical Summary

Problems solved by technology

[0003] However, when the semiconductor laser is working, part of the laser light emitted by itself will return to the inside of the laser chip along the original path, causing the laser power of the semiconductor laser to drop, affecting the quality of the laser beam of the semiconductor laser, and even burning out the laser chip in severe cases. , causing the laser to be scrapped

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