Patents by Inventor Alain M. Beguin

Alain M. Beguin 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).

  • Publication number: 20020034372
    Abstract: A method of fabricating an optical waveguide device that includes a waveguide and a trench, comprises providing a substrate material that includes a substrate layer, an underclad layer, a core layer, and an overclad layer. A waveguide and trench pattern is simultaneously defined in the substrate material and the substrate material is etched to form a waveguide circuit structure that includes the waveguide and trench pattern.
    Type: Application
    Filed: September 20, 2001
    Publication date: March 21, 2002
    Inventors: Guilhem J.M. Alibert, Alain M. Beguin, Philippe Lehuede, Christophe F.P. Renvaze, Jean-Marc M.G. Jouanno