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Proceedings Paper

Compensation of thermal effects in acousto-optic deflector
Author(s): Vladimir I. Balakshy; Vitaly B. Voloshinov; Vladimir A. Karasev; Vladimir Ya. Molchanov; Victor Semenkov
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Paper Abstract

Results on investigation of thermal effects which appear during operation of an acousto-optic deflector are presented in the paper. Influence of the effects on characteristics of the scanning device is evaluated. For a case of the tellurium dioxide deflector, it is proved that the most principal thermal effect consists in an undesirable spatial shift of a scanning optical beam. The shift leads to the optical beam positioning error which in a typical deflector may be of dozens of resolvable spots. A method of the thermal shifts compensation based on acoustic frequency tuning is proposed. For various regimes of the deflector operation, laws of the frequency tuning are found thus providing the compensation of the shifts with the required precision.

Paper Details

Date Published: 1 March 1996
PDF: 8 pages
Proc. SPIE 2713, Fifth International Conference on Industrial Lasers and Laser Applications '95, (1 March 1996); doi: 10.1117/12.234185
Show Author Affiliations
Vladimir I. Balakshy, Moscow State Univ. (Russia)
Vitaly B. Voloshinov, Moscow State Univ. (Russia)
Vladimir A. Karasev, Scientific Research Ctr. for Technological Lasers (Russia)
Vladimir Ya. Molchanov, Russian Institute of Computer Technology and Information (Russia)
Victor Semenkov, GNPP Pribor (Russia)

Published in SPIE Proceedings Vol. 2713:
Fifth International Conference on Industrial Lasers and Laser Applications '95
Vladislav Ya. Panchenko; Vladimir S. Golubev, Editor(s)

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