Patents by Inventor Martine Tessier

Martine Tessier 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).

  • Fibre grating optical waveguide device
    Patent number: 6766079
    Abstract: The present invention relates to a fiber grating filter optical waveguide device, comprising an optical fiber consisting essentially of silica, whereby said optical fiber has an area with a diffractive grating region and wherein said area with a diffractive grating region is covered with a material having a negative thermal expansion coefficient &agr; satisfying the following equation: &agr;=−(dneff/dT)/neff wherein dneff/dT is the thermo-optic coefficient of the fiber material and neff is the effective refractive index. Furthermore, the present invention provides a method of manufacturing such a device.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: July 20, 2004
    Assignee: Avanex Corporation
    Inventors: Valérie Girardon, Isabelle Riant, Alain Fradet, Martine Tessier
  • Fibre grating optical waveguide device
    Publication number: 20020090174
    Abstract: The present invention relates to a fiber grating filter optical waveguide device, comprising an optical fiber consisting essentially of silica, whereby said optical fiber has an area with a diffractive grating region and wherein said area with a diffractive grating region is covered with a material having a negative thermal expansion coefficient &agr; satisfying the following equation:
    Type: Application
    Filed: January 2, 2002
    Publication date: July 11, 2002
    Applicant: ALCATEL
    Inventors: Valerie Girardon, Isabelle Riant, Alain Fradet, Martine Tessier