Patents by Inventor Patrick Pilot

Patrick Pilot has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and system for automatic Raman gain control
    Patent number: 6734954
    Abstract: The present invention provides a closed loop control strategy using system wavelength profile information to provide accurate derivation of Raman gain in a fiber optic span. The present invention overcomes prior art limitations in which a desired Raman gain is estimated on the basis of a modeled solution, without taking into account the dynamic nature of the system span profiles. The method and system according to the present invention provide an improved method of calculating Raman gain which permits dynamic adjustments to system parameters, thus correcting gain inaccuracies induced by the application of known models and permitting an accurate derivation of the Raman gain. Cost-effective optical spectrum analyzers are used to monitor wavelength profiles, which permits the mapping of transmit and receive profiles within a span. This mapping information is then collected in a central location, such that the Raman gain within the span may be derived.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: May 11, 2004
    Assignee: Nortel Networks Limited
    Inventors: Paul M. Reepschlager, Patrick Pilot
  • Method and system for automatic raman gain control
    Publication number: 20020163635
    Abstract: The present invention provides a closed loop control strategy using system wavelength profile information to provide accurate derivation of Raman gain in a fiber optic span. The present invention overcomes prior art limitations in which a desired Raman gain is estimated on the basis of a modeled solution, without taking into account the dynamic nature of the system span profiles. The method and system according to the present invention provide an improved method of calculating Raman gain which permits dynamic adjustments to system parameters, thus correcting gain inaccuracies induced by the application of known models and permitting an accurate derivation of the Raman gain. Cost-effective optical spectrum analyzers are used to monitor wavelength profiles, which permits the mapping of transmit and receive profiles within a span. This mapping information is then collected in a central location, such that the Raman gain within the span may be derived.
    Type: Application
    Filed: April 4, 2001
    Publication date: November 7, 2002
    Inventors: Paul M. Reepschlager, Patrick Pilot