Optical switching with ferroelectric liquid crystal SLMs

Details Optical switching with ferroelectric liquid crystal SLMs Optical switching with ferroelectric liquid crystal SLMs

2005-12-13

2005-12-13

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Switch

C359S015000, C359S559000

Reexamination Certificate

active

06975786

ABSTRACT:
An optical switch uses two ferroelectric liquid crystal spatial light modulators (10, 11) with an interconnect region in between. The switch uses bulk lenses (2, 8) to focus light from an input fibre array (1) to a first spatial light modulator (10), and from the second spatial light modulator (11) to an output array (9). Each spatial light modulator displays a respective hologram selected from a previously calculated set, to cause a desired switching of light from the input fibre array to the output array.

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Mears, Robert J., et al., “Telecommunications Applications of Ferroelectric Liquid-Crystal Smart Pixels”, IEEE Journal of Selected Topics in Quantum Electronics, vol. 2, No. 1, Apr. 1996, pp. 35-46.

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