Applications of photorefractors for signal processing

John H. Hong

doi:10.1117/12.178624

28 April 1994 Applications of photorefractors for signal processing

John H. Hong

Proceedings Volume 10270, Photorefractive Materials, Effects, and Applications: A Critical Review; 102700J (1994) https://doi.org/10.1117/12.178624
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

Abstract

Applications of photorefractive devices for radio frequency signal processing problems are reviewed. The problems of signal correlation, filtering and adaptive filtering are addressed using the time integrating property of grating formation in photorefractive crystals. The dynamic range of photorefractive crystals is sufficiently large for critical applications such as adaptive signal processing. New system architectures that use photorefractive two-beam coupling to substantially simplify overall complexity are shown and demonstrated for the problems of tunable notch filtering and adaptive notch filtering.

Citation Download Citation

John H. Hong "Applications of photorefractors for signal processing", Proc. SPIE 10270, Photorefractive Materials, Effects, and Applications: A Critical Review, 102700J (28 April 1994); https://doi.org/10.1117/12.178624

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