Method and device for measuring and calibrating solid-state laser power

Abstract

Embodiments of the present application provide a solid-state laser power measurement and calibration method and device. The method includes: photoelectrically converting the optical signal emitted by the solid-state laser to obtain a voltage signal corresponding to the optical power; converting the voltage signal corresponding to the optical power into a digital signal corresponding to the level quantization of the optical power; quantizing the level of the optical power After performing anti-pulse interference processing on the digital signal, that is, the quantized value of the optical power level, the quantized average value of the optical power level is obtained after mean value filtering; the corresponding revised value of the quantized threshold value of the optical power level is obtained according to the preset threshold value; and Segmented calibration is performed according to the revision value of the optical power level quantization threshold value and the reference power value detected by the thermoelectric laser power sensor located outside the solid-state laser to obtain the level quantization calibration value of the optical power output. Implementing an embodiment, the measurement feedback value of the photodiode type laser power sensor can be corrected to make it close to the actual power value of the solid-state laser.

Description

technical field [0001] The embodiment of the present application relates to the technical field of laser power calibration before delivery, and provides a method and device for measuring and calibrating the power of a solid-state laser. Background technique [0002] It should be declared that the technical content involved in this article is made to improve the understanding of the application, and it does not mean that the content can necessarily be regarded as the prior art. [0003] At present, with the development of technology, the development of solid-state lasers has made amazing progress, which is known as the revival era of solid-state lasers. Solid-state lasers are widely used in military, processing, medical and scientific research fields. It is commonly used in ranging, tracking, guidance, drilling, cutting and welding, annealing of semiconductor materials, micromachining of electronic devices, atmospheric detection, spectral research, surgery and ophthalmic ope...

AI Technical Summary

Problems solved by technology

[0004] In actual work, there is a problem that the actual laser power of the generated laser does not match the required laser power, which may be caused by factors such as xenon lamp attenuation, crystal damage, resonant cavity damage, optical path pollution, or water path pollution.

When the actual laser power does not match the required laser power, it will affect the use of the laser device

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