Information characteristics of acousto-optic deflection unit of a laser large-screen projection system

Boris S. Gurevich; Sergei V. Andreyev; Salmor A. Alymkulov; Andrey V. Belyaev; Alexander I. Kantsyrev; Alexei A. Rodiontsev

doi:10.1117/12.351647

2 July 1999 Information characteristics of acousto-optic deflection unit of a laser large-screen projection system

Boris S. Gurevich, Sergei V. Andreyev, Salmor A. Alymkulov, Andrey V. Belyaev, Alexander I. Kantsyrev, Alexei A. Rodiontsev

Author Affiliations +

Proceedings Volume 3787, Optical Scanning: Design and Application; (1999) https://doi.org/10.1117/12.351647
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Light beam deflection and modulation unit (LDMU) is an inherent part of any laser projection system. The acousto- optic devices are known as the most flexible and convenient ones among such units. As amount of information to be displayed in the projection system screen is one of the most important characteristics of LDMU, it is necessary to assign this characteristic to acousto-optic deflector-modulator and to estimate if for different versions of the devices. The way of information transmission through the acousto-optic modulation and deflection system has been observed in the present paper. The specific information characteristics of acousto-optic LDMU such as information transmission capability and information capacity, has been defined. Their dependence on such physical and technical parameters as resolving power, dynamic range, diffraction efficiency, and frequency bandwidth, has been established and studied. The experimental studies of 2D acousto-optic LDMU based on tellurium dioxide single crystals have shown that even broadcasting TV mode can be provided by a projection which using such kind of LDMU. It has also been shown that the maximum screen size depends only on the power of lasers, and is practically independent on the acousto-optic LDMU parameters.

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Boris S. Gurevich, Sergei V. Andreyev, Salmor A. Alymkulov, Andrey V. Belyaev, Alexander I. Kantsyrev, and Alexei A. Rodiontsev "Information characteristics of acousto-optic deflection unit of a laser large-screen projection system", Proc. SPIE 3787, Optical Scanning: Design and Application, (2 July 1999); https://doi.org/10.1117/12.351647

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