Patents Assigned to Stratalight Communication, Inc.
  • Optical FSK receiver having compensation for Kerr effect phase noise
    Patent number: 7133620
    Abstract: A method and apparatus for reducing nonlinear phase noise that is induced in an optical transmission system by the interaction of optical amplifier noise and Kerr effect. The apparatus includes an intensity-scaled non-linear phase noise compensator. The phase noise compensator provides a phase noise compensated representation of a differential frequency by combining a measured differential frequency with a scaled differential signal strength estimate. The scale factor is derived from the number of spans in the transmission system.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: November 7, 2006
    Assignee: Stratalight Communication, Inc.
    Inventors: Keangpo Ho, Joseph Mardell Kahn