Patents by Inventor Troy J. Goodnough

Troy J. Goodnough 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).

  • Narrow lateral waveguide laser
    Patent number: 6845116
    Abstract: As edge-emitting semiconductor laser incorporating a narrow waveguide design is disclosed. The narrow waveguide expands the lateral mode size, creates a large modal spot size, and insures higher-order modes are beyond cutoff. Separate current confinement allows the current injection region to match the mode size. The resulting device exhibits single-mode operation with a large spot-size to high output powers.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: January 18, 2005
    Assignees: Wisconsin Alumni Research Foundation, The Board of Trustees of the University of Illinois
    Inventors: Luke J. Mawst, Nelson Tansu, Michael P. Nesnidal, Steven Meassick, Eric W. Stiers, Darren M. Hansen, Troy J. Goodnough
  • Narrow lateral waveguide laser
    Publication number: 20040081214
    Abstract: An edge-emitting semiconductor laser incorporating a narrow waveguide design is disclosed. The narrow waveguide expands the lateral mode size, creates a large modal spot size, and insures higher-order modes are beyond cutoff. Separate current confinement allows the current injection region to match the mode size. The resulting device exhibits single-mode operation with a large spot-size to high output powers.
    Type: Application
    Filed: October 24, 2002
    Publication date: April 29, 2004
    Inventors: Luke J. Mawst, Nelson Tansu, Michael P. Nesnidal, Steven Meassick, Eric W. Stiers, Darren M. Hansen, Troy J. Goodnough