Dynamically tunable waveguide chip for optical transforms
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United States of America Patent
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Issued Date -
Jan 24, 2008
app pub date -
Mar 5, 2007
filing date -
Mar 3, 2006
priority date (Note) -
Abandoned
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Abstract
A tunable optical waveguide chip for optical transforms. Roughly described, the chip includes a planar waveguide having a lens region and a plurality of individually addressable energy applicators distributed transversely across an optical path through the lens region. By individually controlling the energy applied to each of the energy applicators, a desired index of refraction profile can be induced in the lens region transversely across the optical path for performing any of a variety of optical transforms. The device may include an upstream AWG which focus a wavelength de-multiplexed signal on a focal plane within the lens region. The applicators may be thermo-optic or electro-optic, for example.
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