LIQUID CRYSTAL OPTICAL DEVICE WITH ARRAYED WAVEGUIDE GRATING
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United States of America Patent
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Issued Date -
Sep 11, 2008
app pub date -
Feb 15, 2008
filing date -
Mar 8, 2007
priority date (Note) -
Abandoned
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Abstract
An optical device that processes a wavelength divisional multiplexed (WDM) optical signal includes an arrayed waveguide grating (AWG) and a polarizing liquid crystal array. The AWG demultiplexes and/or multiplexes the wavelength channels of the WDM signal. The liquid crystal array modulates the polarization state of individual wavelength channels so that each wavelength channel may be routed along an optical path based on the polarization state of the light.
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