Fast laser-beam deflector based on electro-optical arrays

M. Ivanenko; A. Krasnaberski; A. Mikhailov; Y. Miklyaev; Y. Kolotushkin; V. Grimm; K. Bagschik; V. Lissotschenko

doi:10.1117/12.808202

19 February 2009 Fast laser-beam deflector based on electro-optical arrays

M. Ivanenko, A. Krasnaberski, A. Mikhailov, Y. Miklyaev, Y. Kolotushkin, V. Grimm, K. Bagschik, V. Lissotschenko

Proceedings Volume 7194, Laser Resonators and Beam Control XI; 719406 (2009) https://doi.org/10.1117/12.808202
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

A new type of electro-optical (E-O) deflector which combines microoptical laser beam manipulations and electro-optical light wave phase control is presented. It consists of two stages, which include E-O arrays of LiNbO₃ as key components. The first stage forms a moveable "comb" of interference beamlets at the entrance to the second one. The second stage recombines the beamlets, reconstructs a plane wavefront and converts the translational movement of the comb to an angular deflection of the unified beam. Advantages of the concept as compared to other deflector types will be discussed. The laboratory results with He-Ne lasers are presented. The demonstrator is designed to provide a 63 mrad deflection with a diffraction limited resolution of 0.025 mrad. The technique is applicable for material processing with highrepetition- rate lasers, for laser projection, lidars and in other fields where high speeds and robustness are necessary or sources of vibration need to be avoided.

Citation Download Citation

M. Ivanenko, A. Krasnaberski, A. Mikhailov, Y. Miklyaev, Y. Kolotushkin, V. Grimm, K. Bagschik, and V. Lissotschenko "Fast laser-beam deflector based on electro-optical arrays", Proc. SPIE 7194, Laser Resonators and Beam Control XI, 719406 (19 February 2009); https://doi.org/10.1117/12.808202

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