Acousto-Optic Diffraction in Paratellurite by a Slow Acoustic Mode. Increase of Diffraction Efficiency of Divergent Light


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Peculiarities of anisotropic acousto-optic Bragg diffraction in paratellurite by a slow acoustic wave have been considered. The ranges of frequency-angular dependences have been found, in which effective diffraction occurs, and their practical relevance has been formulated. The numerical values for light radiation with a wavelength of 1.06 μm have been obtained. We have proposed the method of enhancement of a diffraction efficiency of divergent optical radiation, which in turn leads to the increase of the response time of an acousto-optical modulator. The method is based on a multifrequency electric control of the acousto-optical modulator. We have shown experimentally that, as distinct from the single-frequency control, a considerable intensity suppression of the zero diffraction order from 30 to 8% is achieved.

作者简介

S. Antonov

Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch

编辑信件的主要联系方式.
Email: olga-ant@yandex.ru
俄罗斯联邦, Fryazino, Moscow oblast, 141190

A. Filatov

Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch

Email: olga-ant@yandex.ru
俄罗斯联邦, Fryazino, Moscow oblast, 141190

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