Abstract
An original acousto-optic deflector is based on the anisotropic diffraction in the paratellurite crystal. The deflector is characterized by a relatively high diffraction efficiency for depolarized laser radiation. The deflector consists of two sequential acousto-optic cells. Each cell deflects one of the orthogonally polarized components of the originally depolarized radiation. The first and second cells scan the low- and highfrequency parts of the angular interval, respectively. The simultaneous and independent operation of the cells makes it possible to use the entire optical (laser) power. A frequency band of 32 MHz is almost reached for depolarized radiation with a wavelength of 1.06 µm and the absolute angular interval is 50 mrad at a total efficiency of no less than 70%.
References
L. N. Magdich and V. Ya. Molchanov, Acoustooptical Devices and Their Application (Gordon & Breach, New York, 1989).
S. N. Antonov, Tech. Phys. 49, 1329 (2004).
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Original Russian Text © S.N. Antonov, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 61, No. 1, pp. 136–139.
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Antonov, S.N. Acousto-optic deflector of depolarized laser radiation. Tech. Phys. 61, 134–137 (2016). https://doi.org/10.1134/S1063784216010047
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DOI: https://doi.org/10.1134/S1063784216010047