New ways to expand operation bandwidth of acousto-optic spectrum analyzers

Boris S. Gurevich; Sergei V. Andreyev; Andrey V. Belyaev; Pavel A. Burov; Alexei A. Rodiontsev; Valery N. Sokolov

doi:10.1117/12.323135

2 October 1998 New ways to expand operation bandwidth of acousto-optic spectrum analyzers

Boris S. Gurevich, Sergei V. Andreyev, Andrey V. Belyaev, Pavel A. Burov, Alexei A. Rodiontsev, Valery N. Sokolov

Proceedings Volume 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications; (1998) https://doi.org/10.1117/12.323135
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

If an acousto-optic spectrum analyzer (AOSA) operates in a low-frequency range, the lowest frequencies of the spectrum to be analyzed may produce higher orders of diffraction. This creates the frequency bandwidth limitation of one octave for such a device. The present paper is devoted to some methods allowing to avoid this limitations. Such methods as data decoding using the inverse part of the device transmission function, higher order suppression by means of employing the Bragg cell with specific form of its frequency characteristic, and prolongation of Bragg diffraction frequency area to the lower frequencies using some peculiarities of anisotropic Bragg diffraction. Some experimental results illustrating the discussed method have been demonstrated.

Citation Download Citation

Boris S. Gurevich, Sergei V. Andreyev, Andrey V. Belyaev, Pavel A. Burov, Alexei A. Rodiontsev, and Valery N. Sokolov "New ways to expand operation bandwidth of acousto-optic spectrum analyzers", Proc. SPIE 3464, Optical Devices and Methods for Microwave/Millimeter-Wave and Frontier Applications, (2 October 1998); https://doi.org/10.1117/12.323135

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