Automatic adjusting system and method of laser resonant cavity reflector

Abstract

The invention provides an automatic adjusting system of a laser resonant cavity reflector. The system comprises a remote angle adjusting device, a light beam monitoring device and a data processing module. The light beam monitoring device is configured to detect the centroid data of a laser output by a laser in real time, compare the centroid data with initial centroid data to determine whether the centroid data exceeds a centroid fluctuation range or not, and convert the centroid fluctuation quantity and the fluctuation direction into driving signals and send the driving signals to the remoteangle adjusting device if yes. The present invention further provides an automatic adjusting method of a laser resonant cavity reflector. The method can monitor the parameters of the laser output bythe laser in use in real time to determine whether a laser resonant cavity reflector is moved or not, can determine the movement data of the laser resonant cavity reflector according to the parameterchange trend and can feedback the movement data to the automatic adjusting system of the laser resonant cavity reflector to achieve rapid and automatic adjusting of the laser resonant cavity reflectorso as to improve the adjustment rate of the reflector and improve the use efficiency of the laser.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to an automatic adjustment system and method for a reflector of a laser resonator cavity. Background technique [0002] The position and angle of the mirror in the laser resonator affect the power and beam quality of the output laser. The precise adjustment of the laser resonator mirror has always been an important link in the debugging of the laser resonator. A typical laser resonator consists of a planar output mirror and a reflective mirror with curvature to form a plano-concave resonator. By adjusting the position and angle of the two mirrors, a predetermined laser output can be obtained. In this state, the output mirror and reflector The mirror is fastened to obtain a laser resonator that meets the design requirements. However, as the laser usage time increases, the laser resonator mirror will undergo slight deflection and other movements, which will affect the laser output po...

AI Technical Summary

Problems solved by technology

However, as the laser usage time increases, the laser resonator mirror will undergo slight deflection and other movements, which will affect the laser output power and beam quality. If you want to restore the predetermined laser output, you need to stop the laser, disassemble the laser and readjust the resonator, which will seriously affect Laser usage efficiency

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