Multiplicative time and space integrating acousto-optic architectures for real time spectrum processing

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Multiplicative time and space integrating acousto-optic architectures for real time spectrum processing

Riza, Nabeel A.; Psaltis, Demetri
Date: 1987-11-25
Copyright: © 1987 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Citation: Riza, N. A. and Psaltis, D. (1987) 'Multiplicative Time And Space Integrating Acousto-Optic Architectures For Real Time Spectrum Processing', Proceedings of SPIE, 0827, Real-Time Signal Processing X, 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States, 25 November, doi: 10.1117/12.942069
Published Version: 10.1117/12.942069

Abstract:

Multiplicative acousto-optic architectures using time and space dimensions for spectrally resolving long 1-D signals and images are described. The Discrete Fourier Transform algorithm is implemented optically to provide fine frequency resolving power. Experimental results are presented for 1-D and 2-D input signals. Bias removal techniques are discussed, including an approach using a photorefractive crystal as a time integrating bias-free detector.

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