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Proceedings Paper

Panoramic rf spectrum analysis with high productivity using acousto-optic components
Author(s): Boris S. Gurevich; Oleg V. Aveltsev; Sergei V. Andreyev; Andrey V. Belyaev; Alexei A. Rodiontsev; Valentine V. Vorobiev; Salmor A. Alymkulov
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Paper Abstract

One of the most important applications of acousto-optic spectrum analyzers (AOSA) is providing of the radio air panoramic observation. It is necessary to provide simultaneously wide operation frequency band and good frequency resolving power on a level with high operation rate for this purpose. These demands are contradictory. Their conjugation is possible if the composition of different kinds of AOSA is used in the total device. Application of AOSA with space and time integration has been analyzed. The optimal values of the frequency subbandwidth and integration time have been determined proceeding from the condition of maximum resolving power (both spatial and temporal) and operation rate. The totally observed frequency bandwidth in the optimized device can attain value of 1..2 GHz and observation time - several seconds. On a level with that the frequency resolving power can be less than 1 kHz. The experimental studies of some AOSA compositions have been reported. We have made the devices on the basis of acousto-optic Bragg cells using tellurium dioxide single crystals in which the slow shear acoustic mode was excited. The experimental study of these devices has demonstrated that the parallel connection of AOSA with space and time integration provides more profitable conditions from the point of view of maximum information transmission capability than earlier proposed AOSA with combined space and time integration.

Paper Details

Date Published: 6 November 2001
PDF: 7 pages
Proc. SPIE 4453, Materials and Devices for Photonic Circuits II, (6 November 2001); doi: 10.1117/12.447656
Show Author Affiliations
Boris S. Gurevich, ELAN Co. (Russia)
Oleg V. Aveltsev, ELAN Co. (Russia)
Sergei V. Andreyev, ELAN Co. (Russia)
Andrey V. Belyaev, ELAN Co. (Russia)
Alexei A. Rodiontsev, ELAN Co. (Russia)
Valentine V. Vorobiev, ELAN Co. (Russia)
Salmor A. Alymkulov, Institute of Physics (Kirgizstan)


Published in SPIE Proceedings Vol. 4453:
Materials and Devices for Photonic Circuits II
Mario Nicola Armenise, Editor(s)

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