Patents by Inventor James Kirby Goulet

James Kirby Goulet 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 for correcting for dark current variation in TEC cooled photodiodes
    Patent number: 9541449
    Abstract: An optical power meter including a photodiode having a surface for receiving a beam of light, a thermo-electric cooler for maintaining the photodiode at a predetermined temperature, and a current monitor for measuring a drive current passing through the thermo-electric cooler allows dark current drift arising from a varying thermal gradient across the active region of the photodiode to be corrected, thus improving stability of the optical power meter. More specifically, by monitoring the TEC drive current, and applying a correction factor to the optical power readings, the stability of optical power readings is improved by an order of magnitude.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: January 10, 2017
    Assignee: VIAVI SOLUTIONS INC.
    Inventors: Chris Wagner, James Kirby Goulet
  • METHOD FOR CORRECTING FOR DARK CURRENT VARIATION IN TEC COOLED PHOTODIODES
    Publication number: 20140240698
    Abstract: An optical power meter including a photodiode having a surface for receiving a beam of light, a thermo-electric cooler for maintaining the photodiode at a predetermined temperature, and a current monitor for measuring a drive current passing through the thermo-electric cooler allows dark current drift arising from a varying thermal gradient across the active region of the photodiode to be corrected, thus improving stability of the optical power meter. More specifically, by monitoring the TEC drive current, and applying a correction factor to the optical power readings, the stability of optical power readings is improved by an order of magnitude.
    Type: Application
    Filed: February 21, 2014
    Publication date: August 28, 2014
    Inventors: Chris Wagner, James Kirby Goulet