rus
Issue #7/2025
A. L. Rukosuev, A. G. Aleksandrov, A. N. Nikitin, A. A. Soloviev, K. F. Burdonov, Yu. V. Sheldakova, A. V. Kudryashov
Stabilization of the Direction of Propagation of a Wide-Aperture Light Beam Using Quadrant Photodiodes
Stabilization of the Direction of Propagation of a Wide-Aperture Light Beam Using Quadrant Photodiodes
DOI: 10.22184/1993-7296.FRos.2025.19.7.564.576
This article addresses the problem of stabilizing the propagation direction of wide-aperture laser beams when the beam size significantly exceeds the dimensions of standard quadrant photodetectors. Two fundamental stabilization schemes are analyzed: with dependent and independent control loops. It is shown that the former has a fundamental limitation due to the highly dependent nature of the influence matrix. As a solution, a system with two independent loops is proposed, which does not require matrix calculations and demonstrates high beam positioning accuracy sufficient for practical application in laser long-distance communication and focusing systems.
Tags: laser beam stabilization system laser long-distance communication quadrant photodetectors tilt corrector wavefront tilt correction квадрантные фотодиоды корректор наклонов коррекция наклонов волнового фронта лазерные системы дальней связи система стабилизации лазерного пучка
Subscribe to the journal Photonics Russia to read the full article.
This article addresses the problem of stabilizing the propagation direction of wide-aperture laser beams when the beam size significantly exceeds the dimensions of standard quadrant photodetectors. Two fundamental stabilization schemes are analyzed: with dependent and independent control loops. It is shown that the former has a fundamental limitation due to the highly dependent nature of the influence matrix. As a solution, a system with two independent loops is proposed, which does not require matrix calculations and demonstrates high beam positioning accuracy sufficient for practical application in laser long-distance communication and focusing systems.
Tags: laser beam stabilization system laser long-distance communication quadrant photodetectors tilt corrector wavefront tilt correction квадрантные фотодиоды корректор наклонов коррекция наклонов волнового фронта лазерные системы дальней связи система стабилизации лазерного пучка
Subscribe to the journal Photonics Russia to read the full article.
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