Optical switch including two integrated multiphase SLM's and a wave-plate the wave-plate providing an optical retardance of (2n+1)λ/4
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United States of America Patent
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Oct 11, 2005
Grant Date -
N/A
app pub date -
Oct 4, 2000
filing date -
Oct 4, 1999
priority date (Note) -
Expired
status (Latency Note)
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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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