Patents by Inventor Julie A. Shimer

Julie A. Shimer 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).

  • Self-aligned rib-waveguide high power laser
    Patent number: 4615032
    Abstract: The specification describes an improved form of heterostructure laser, termed a "Rib-Loc" laser. It is an easily fabricated device with desirable electrical and optical properties. The Rib-Loc is simple to fabricate because a single, self-aligned rib provides ohmic contact, current confinement and lateral waveguiding. A deeply etched P-cladding layer outside the rib provides the positive index change needed for an index-guided laser. The large optical cavity increases the maximum power output and reduces the aspect ratio of the beam.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: September 30, 1986
    Assignee: AT&T Bell Laboratories
    Inventors: Walter R. Holbrook, Claude L. Reynolds, Jr., Julie A. Shimer, Henryk Temkin