Optical switch including two integrated multiphase SLM's and...

Details Optical switch including two integrated multiphase SLM's and... Optical switch including two integrated multiphase SLM's and...

2005-10-11

2005-10-11

Chowdhury, Tarifur R. (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Beam dividing switch formed from liquid crystal cell

C349S193000, C349S197000, C349S201000, C359S237000

Reexamination Certificate

active

06954252

ABSTRACT:
An optical switch uses a polarization insensitive spatial light modulator operating by a double pass through a liquid crystal cell. The switch includes two such modulators in a cross bar arrangement. Different embodiments employing techniques for reducing cross talk are described.

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patent: 6373549 (2002-04-01), Tombling et al.
patent: 0878729 (1998-11-01), None
Love, Gordon D, Liquid-crystal Phase Modulator for Unpolarized Light, Applied Optics, vol. 32, pp. 2222-2223, May 1, 1993.

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