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Conferences > OAM > 1991 > ThT > ThT5

Pulse frequency modulated optically addressed liquid crystal spatial light modulator

David A. Jared and Kristina M. Johnson

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Abstract

The design, fabrication and performance of an optically addressed spatial light modulator (SLM) that receives an analog optical input and generates a pulse frequency modulation output is discussed. The SLM consists of a ferroelectric liquid crystal (FLC) modulator on a CMOS VLSI chip. Smectic C* FLCs essentially provide only binary modulation. Pulse frequency modulation enables smectic C* FLCs to linearly encode analog data over several orders of magnitude.

© 1991 Optical Society of America

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