Patents by Inventor Rudolf F. Kzarinov

Rudolf F. Kzarinov 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).

  • Article comprising a semiconductor laser with carrier stopper layer
    Patent number: 5539762
    Abstract: A novel InP-based semiconductor laser comprises an unpatterned active region that is essentially co-extensive with the substrate of the laser, an electron stopper layer, and a separate confinement heterostructure (SCH) layer that has a portion of thickness greater than the thickness of the remainder of the SCH layer. The difference in thickness serves to provide lateral guiding of the laser mode. A patterned current blocking layer is disposed on the SCH layer, with a window in the blocking layer defining the region of increased thickness of the SCH layer. The inventive laser is readily manufacturable and can have improved properties.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 23, 1996
    Assignee: AT&T Corp.
    Inventors: Gregory Belenky, Rudolf F. Kzarinov, Keisuke Kojima, Claude L. Reynolds, Jr.