Method for selective transfer of an audio signal, developed on the basis of features of Bragg acousto-optic interaction, is described. By that the audio signal modulates the high-frequency acoustic oscillation by frequency. This is accompanied by a change in the direction of propagation of the declined light.Located in a certain way the screen provides a corresponding change of the power of the light, incident on the surface of the photodetector.

p. 540-543

Author: A. R. HASANOV, R. A. HASANOV