Information properties of acousto-optic tunable filters

Boris S. Gurevich; Sergei V. Andreyev; Andrey V. Belyaev; Mikhail V. Kaupinen; Salmor A. Alymkulov; Imil A. Akkoziev

doi:10.1117/12.388443

14 June 2000 Information properties of acousto-optic tunable filters

Boris S. Gurevich, Sergei V. Andreyev, Andrey V. Belyaev, Mikhail V. Kaupinen, Salmor A. Alymkulov, Imil A. Akkoziev

Proceedings Volume 4148, Optoelectronic and Hybrid Optical/Digital Systems for Image and Signal Processing; (2000) https://doi.org/10.1117/12.388443
Event: International Workshop on Optoelectronic and Hybrid Optical/Digital Systems for Image/Signal Processing, 1999, Lviv, Ukraine

Abstract

Each acousto-optic device is intended generally for the purposes of information transmission and processing. Different kinds of such devices, however, transmit different kinds of information. Output information originating from acousto-optic tunable filters (AOTF) is contained in output light spectrum or wavelength. Amount of the transmitted information depends on different factors; the most important among them are AOTF resolving power by wavelength and the processing rate. The resolving power can be defined according to the following criterion: two adjacent wavelengths are considered to be resolved if their possibility to be non-recognized is less than the value given beforehand (usually determined by the customer of the device). This possibility can be measured if the valley between two peaks corresponding these wavelength is in the certain relationship with the value of noise. Hence, signal- to-noise ratio appears to be the most important factor describing information possibilities of AOTF. From the other hand, the processing rate depends on the temporal aperture of Bragg cell on the basis of which the device have been designed. The calculations of the possible amount of information to be transmitted by AOTF has been carried out both for collinear and noncollinear configurations of the device. The influence of features of slow shear acoustic wave propagation in tellurium dioxide single crystal in AOTF on information transmission through AOTF has been considered and discussed.

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Boris S. Gurevich, Sergei V. Andreyev, Andrey V. Belyaev, Mikhail V. Kaupinen, Salmor A. Alymkulov, and Imil A. Akkoziev "Information properties of acousto-optic tunable filters", Proc. SPIE 4148, Optoelectronic and Hybrid Optical/Digital Systems for Image and Signal Processing, (14 June 2000); https://doi.org/10.1117/12.388443

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