Patents by Inventor Corin B E Gawith

Corin B E Gawith 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).

  • Optical waveguide and fabrication method
    Patent number: 6834151
    Abstract: An optical waveguide with at least a guiding lamina (10) of optical material bonded by direct interfacial bonding to a superstructure lamina (20) of optical material, in which regions of the guiding lamina have modified optical properties so as to define a light guiding path along the guiding lamina. In a particular example, a periodically poled LiNbO3 planar waveguide is buried in LiTaO3 by direct interfacial bonding and precision polishing techniques and used in an optical frequency doubling system.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: December 21, 2004
    Assignee: QinetiQ Limited
    Inventors: Peter G R Smith, Graeme W Ross, David C Hanna, David P Shepherd, Corin B E Gawith