This article is cited in 18 papers

Special issue on optical processing of information

Multistability in an acousto-optical system with a frequency feedback

V. I. Balakshii, A. V. Kazar'yan, A. A. Lee

M. V. Lomonosov Moscow State University

Abstract: An investigation was made of an acousto-optical system with hybrid feedback used to control the frequency of ultrasonic waves excited in an acousto-optical cell. An amplitude transparency, placed in front of a photodetector, ensured a nonlinear dependence of the intensity of the diffracted radiation reaching the detector on the ultrasound frequency. Conditions were found under which this nonlinearity gave rise to multistable states differing in respect of the amplitude, frequency, and direction of propagation of the diffracted beam. An analysis was made of various uses of such a system as an optical channel switch and in stabilisation of the direction of propagation of a light beam.

PACS: 42.65.Pc, 42.79.Jq

Received: 30.06.1994

 English version: Quantum Electronics, 1995, 25:10, 940–944

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