Joint transform correlator using nonlinear ferroelectric liquid-crystal spatial light modulator

A. Kohler; B. Fracasso; Pierre Ambs; Jean-Louis M. de Bougrenet de la Tocnaye

doi:10.1117/12.49714

1 November 1991 Joint transform correlator using nonlinear ferroelectric liquid-crystal spatial light modulator

A. Kohler, B. Fracasso, Pierre Ambs, Jean-Louis M. de Bougrenet de la Tocnaye

Proceedings Volume 1564, Optical Information Processing Systems and Architectures III; (1991) https://doi.org/10.1117/12.49714
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

An all optical joint transform correlator using a nonlinear optically addressed ferroelectric liquid crystal spatial light modulator (OASLM) is presented. A modification of the nonlinearity characteristic is obtained by simply changing such driving parameters as the amplitude or duration of the voltage applied to the OASLM. The role of those parameters in implementing optically the nonlinear step of the correlator has been investigated here.

Citation Download Citation

A. Kohler, B. Fracasso, Pierre Ambs, and Jean-Louis M. de Bougrenet de la Tocnaye "Joint transform correlator using nonlinear ferroelectric liquid-crystal spatial light modulator", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49714

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