Patents by Inventor Yannic Bourdin

Yannic Bourdin 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 made solid state material laser applying this waveguide
    Patent number: 4901321
    Abstract: The invention concerns an optical guiding structure comprising, between two optical confinement layers, an optical guiding layer and an optical guiding element separated from each other by a layer for stopping chemical attack, to obtain by epitaxy methods and by chemical attack, a guiding element of which it is possible to precisely calibrate the thickness obtain surfaces of excellent quality and perform cutting out with sharpness, the invention being applicable to producing lasers and optical phase modulators.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: February 13, 1990
    Assignee: Thomson-CSF
    Inventors: Robert Blondeau, Yannic Bourdin, Beaudoin de Cremoux, Michel Papuchon, Michel Krakowsky, Alain Bensoussan, Manijeh Razeghi, Francoise Lozes