Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2008-04-01
2008-04-01
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
11372454
ABSTRACT:
A method for manufacturing a complex multi-channel optical grating using a phase mask is presented. A plurality of sub-gratings is designed, each having an individual spectral response designed to produce one of the channels of the multi-channel grating. The target profile of the grating is determined based on the combination of the index profiles of the individual sub-gratings, the target index profile defining a target spectral response of the multi-channel grating. A modified index profile having a smooth apodization profile but providing the same spectral response as the target index profile, at least within a spectral region of interest, is determined and encoded into the phase mask. The phase mask is then used to photoinduce the grating in a photosensitive medium.
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Morin Michel
Painchaud Yves
Poulin Michel
Connelly-Cushwa Michelle
Darby & Darby P.C.
Smith Chad H
Teraxion Inc.
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