Patents by Inventor Robert F. Leheny

Robert F. Leheny 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).

  • Patent number: 4872744
    Abstract: High speed optoelectronic devices which are suitable for use in an optical integrated circuit design. The devices comprise a monolithic planar structure wherein exciton-resonant light propagates along a single mode waveguide containing a single quantum well as the absorbing media. Optical absorption is controlled by the bleaching effect induced by free carriers whose electrical conduction makes possible optical detection and monolithic high speed, gate-controlled transistor structures.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: October 10, 1989
    Assignee: Bell Communications Research, Inc.
    Inventors: Joseph H. Abeles, Alexander Kastalsky, Robert F. Leheny