Patents Represented by Attorney Gavsilovich, Dodd & Lindsey, LLP

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  • High speed optical phase modulator
    Patent number: 7542630
    Abstract: An optical device includes a phase modulator having a waveguide on a substrate. The phase modulator also includes an n-type region having a proximity to a p-type region that causes formation of a depletion region when a bias is not applied to the modulator. The depletion region is at least partially positioned in the light signal carrying region of the waveguide. The phase modulator is tuned by applying a reverse bias to the phase modulator. The reverse bias changes the size of the depletion region.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 2, 2009
    Assignee: Kotura, Inc.
    Inventors: Dawei Zheng, Dazeng Feng, Anthony Kewitsch, George Rakuljic