System for two-coordinate positioning of the laser resonator mirror

Authors: Terskov N.N., Gavrin V.R., Sabirov V.V.
Published in issue: #5(58)/2021
DOI: 10.18698/2541-8009-2021-5-701
Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Laser and opto-electronic systems
Keywords: alignment, laser, laser power, motor, microcontroller, positioning, least squares, approximation, Python, Gaussian function
Published: 17.06.2021

Authors developed a system for automatic two-coordinate positioning of the mirror, which can be used in the hardware-software complex for aligning and tuning the laser. The hardware part is built on the basis of electric motor drives, a microcontroller and a portable power meter with a thermal sensor. The software part is written in the Python programming language, the algorithm is based on the approximation of experimental data by the Gaussian function using the least squares method. A laboratory installation was created for the practical implementation of the system. The proposed system can be used as a faster and more accurate replacement for the manual alignment and adjustment of laser systems.

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