Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2007-04-18
2009-02-17
Healy, Brian (Department: 2883)
Optical waveguides
With optical coupler
Switch
C385S011000, C385S015000, C385S017000, C385S018000, C385S024000, C385S031000, C359S246000, C359S484010, C359S487030, C359S488010, C359S489040, C359S490020, C359S494010, C359S490020, C359S490020, C398S065000, C398S066000, C398S081000, C349S193000, C349S194000, C349S201000, C349S202000
Reexamination Certificate
active
07492986
ABSTRACT:
An optical switching apparatus includes at least one optical waveguide to deliver at least one input optical beam. A dispersion device spatially separates the at least one input optical beam into individual wavelength channels. An optical power device aligns the individual wavelength channels. An optical switch has at least one transflective polarizing element, at least one birefringent wedge and at least two polarization switches. The individual wavelength channels are directed to independently addressable regions of the polarization switches for wavelength selective switching. A second optical power device aligns the individual wavelength channels from the optical switch. A second dispersion device spatially combines individual wavelength channels from the second optical power device. At least one output optical waveguide receives at least one of the individual wavelength channels from the second dispersion device.
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Coadna Photonics, Inc.
Cooley Godward Kronish LLP
Healy Brian
Lam Hung
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