Acousto-Optic Diffraction in Paratellurite by a Slow Acoustic Mode. Increase of Diffraction Efficiency of Divergent Light
- Russian Academy of Sciences, Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch (Russian Federation)
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.
- OSTI ID:
- 22783822
- Journal Information:
- Technical Physics, Vol. 63, Issue 6; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7842
- Country of Publication:
- United States
- Language:
- English
Similar Records
Acousto-optic diffraction of multicolour Ar-laser radiation in crystalline quartz
Wide-aperture diffraction of unpolarised radiation in a system of two acousto-optic filters