Patents by Inventor Hervé Lefebvre

Hervé Lefebvre 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 device comprising an optical component and an optical medium with different refractive indices
    Patent number: 7613378
    Abstract: The present invention consists in an optical device comprising an optical component and an optical medium with different refractive indices, said optical component being at least partly immersed in said optical medium, which device is characterized in that said optical medium contains a salt that is in the liquid state in the range of temperatures at which said optical component is used and stored, i.e. in a range of temperatures generally from ?40° C. to +200° C. The optical component may in particular be a Bragg long-period grating (LPG) or a photonic crystal fiber.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: November 3, 2009
    Assignee: ALCATEL
    Inventors: Valérie Girardon, Isabelle Riant, Xavier Bonnet, Alain Fradet, Hervé Lefebvre