Patents by Inventor Henry Postolek

Henry Postolek 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).

  • Fiber bragg grating dispersion compensator
    Patent number: 6807340
    Abstract: A dispersion compensator has a linearly chirped fiber Bragg grating mounted at two ends of an elongated, channel-shaped heat distributor. The distributor has two thermo-electric coolers at two ends, a heating strip for uniform heating of the distributor, a temperature sensor mounted on the distributor in the middle of the grating region, and longitudinally variable heating means attached to the distributor and extending along its length for effecting a longitudinally varying heating of the grating region. The provision of the heating strip helps maintain linearity of the thermal gradient of the distributor while the longitudinally variable heaters facilitate relatively fast dithering of the temperature of the grating region.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: October 19, 2004
    Assignee: JDS Uniphase Inc.
    Inventors: Henry Postolek, Graham Ian Duck, Nenad Duricic, Gonzalo de la Puente, Tinko Eftimov, Dan Grobnic, David William Charles Markin, Martin Matthews, Evgueni A. Ponomarev, Serguei Roupassov, Dariusz Sieniawski
  • Fiber bragg grating dispersion compensator
    Publication number: 20030142911
    Abstract: A dispersion compensator has a linearly chirped fiber Bragg grating mounted at two ends of an elongated, channel-shaped heat distributor. The distributor has two thermo-electric coolers at two ends, a heating strip for uniform heating of the distributor, a temperature sensor mounted on the distributor in the middle of the grating region, and longitudinally variable heating means attached to the distributor and extending along its length for effecting a longitudinally varying heating of the grating region. The provision of the heating strip helps maintain linearity of the thermal gradient of the distributor while the longitudinally variable heaters facilitate relatively fast dithering of the temperature of the grating region.
    Type: Application
    Filed: August 28, 2002
    Publication date: July 31, 2003
    Inventors: Henry Postolek, Graham Ian Duck, Nenad Duricic, Gonzalo de la Puente, Tinko Eftimov, Dan Grobnic, David William Charles Markin, Martin Matthews, Evgueni A. Ponomarev, Serguei Roupassov, Dariusz Sieniawski