Patents by Inventor Paul Thomas Epp

Paul Thomas Epp 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).

  • High efficiency, high power cryogenic laser system
    Patent number: 7466731
    Abstract: A fiber laser system and a related method for its use, in which one or more fiber laser amplifiers are cryogenically cooled and optimized to operate at a desirably high efficiency. Versions of the laser system using either thulium or erbium doped fibers are disclosed. In a high power version of the system, the outputs of multiple fiber lasers are coherently combined. Cooling by a selected liquefied gas, such as nitrogen, is applied to the fiber laser amplifiers and, optionally, to pump diodes and to optical elements used to combine the outputs of the fiber laser amplifiers.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: December 16, 2008
    Assignee: Northrop Grumman Corporation
    Inventors: Joshua Elliott Rothenberg, Stephen John Brosnan, Paul Thomas Epp