Optical thresholding with a liquid crystal light valve

I. Shariv; Asher A. Friesem

doi:10.1117/12.49064

1 April 1991 Optical thresholding with a liquid crystal light valve

I. Shariv, Asher A. Friesem

Proceedings Volume 1442, 7th Mtg in Israel on Optical Engineering; (1991) https://doi.org/10.1117/12.49064
Event: 7th Meeting of Optical Engineering in Israel, 1990, Tel-Aviv, Israel

Abstract

A technique for obtaining a sharp output-to--input response from optically addressed spatial light modulators is presented. In this technique, a portion of the output light is fed back into the input. By controlling the portion of light that is fed back it is possible to change the slope and the shape of the response curve of the modulator so as to improve the sensitivity to external inputs. Experimental results demonstrating sharp thresholding by exploiting both positive and negative feedbacks with a liquid crystal light valve SLM are illustrated.

Citation Download Citation

I. Shariv and Asher A. Friesem "Optical thresholding with a liquid crystal light valve", Proc. SPIE 1442, 7th Mtg in Israel on Optical Engineering, (1 April 1991); https://doi.org/10.1117/12.49064

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