Patents by Inventor Adelbert Awyoung

Adelbert Awyoung 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).

  • Vertical-cavity surface-emitting laser device
    Patent number: 5903590
    Abstract: A vertical-cavity surface-emitting laser device. The vertical-cavity surface-emitting laser (VCSEL) device comprises one or more VCSELs with each VCSEL having a mode-control region thereabout, with the mode-control region forming an optical cavity with an effective cavity length different from the effective cavity length within each VCSEL. Embodiments of the present invention can be formed as single VCSELs and as one- or two-dimensional arrays of VCSELs, with either an index-guided mode of operation or an index anti-guided mode of operation being defined by a sign of the difference in the two effective cavity lengths.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: May 11, 1999
    Assignee: Sandia Corporation
    Inventors: G. Ronald Hadley, Kevin L. Lear, Adelbert Awyoung, Kent D. Choquette