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Proceedings Paper

Real-time optical correlator using computer-generated holographic filter on a liquid crystal light valve
Author(s): Tien-Hsin Chao; Jeffrey W. Yu
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Paper Abstract

Limitations associated with the binary phase-only filter often used in optical correlators are presently circumvented in the writing of complex-valued data on a gray-scale spatial light modulator through the use of a computer-generated hologram (CGH) algorithm. The CGH encodes complex-valued data into nonnegative real CGH data in such a way that it may be encoded in any of the available gray-scale spatial light modulators. A CdS liquid-crystal light valve is used for the complex-valued CGH encoding; computer simulations and experimental results are compared, and the use of such a CGH filter as the synapse hologram in a holographic optical neural net is discussed.

Paper Details

Date Published: 27 December 1990
PDF: 10 pages
Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); doi: 10.1117/12.23410
Show Author Affiliations
Tien-Hsin Chao, Jet Propulsion Lab. (United States)
Jeffrey W. Yu, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 1347:
Optical Information Processing Systems and Architectures II
Bahram Javidi, Editor(s)

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