Optical EngineeringPolarization effects in acousto-optic interaction
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Results of the theoretical investigation of light polarization changes during Bragg acousto-optic interaction are presented. It is shown that a linearly polarized light wave, entering an acoustic field, becomes elliptically polarized because of an additional phase shift effect. The polarization state can be controlled by varying power or frequency of the ultrasound. An effect of polarization nonreciprocity for two optical waves passing through the acoustic field in opposite directions is also studied.