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Proceedings Paper

Acousto-optical interaction bandwidth of more than 2 GHz
Author(s): Vladimir V. Petrov
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Paper Abstract

The way of extension of acousto-optical interaction frequency bandwidth to more than one octave is suggested. The main principle used for this aim is to design the electro-acoustical multi-element transducer with variable, along its length, parameters. In such a case to each frequency point inside chosen band exists the region of the transducer's length where, from one hand, the condition for good excitation of sound waves is fulfilled and from the other hand the Bragg condition is also fulfilled because of closed coincidence of real and necessary frequency dependencies of Bragg angle and of the angle of sound wave front inclination. This window moves from one end of the transducer to the other when frequency changes from minimum to maximum one inside the band. The closer real angle frequency dependence follows to necessary one than larger the length of transducer can be done and than more higher the diffraction efficiency can be reached.

Paper Details

Date Published: 27 December 1996
PDF: 7 pages
Proc. SPIE 2969, Second International Conference on Optical Information Processing, (27 December 1996); doi: 10.1117/12.262602
Show Author Affiliations
Vladimir V. Petrov, Saratov State Univ. (Russia)

Published in SPIE Proceedings Vol. 2969:
Second International Conference on Optical Information Processing
Zhores I. Alferov; Yuri V. Gulyaev; Dennis R. Pape, Editor(s)

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