Patents by Inventor Andre Le Sauze

Andre Le Sauze 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 fiber for amplification or for laser emission
    Patent number: 7006751
    Abstract: The invention relates to the field of amplifying or emitting optical fibers. It comprises an amplifying optical fiber doped with a rare earth comprising a plurality of successive segments (1, 2, 3, 4, 5), presenting a monomode core and a multimode core, presenting at the periphery of the multimode core a peripheral segment (4) of low index so as to increase the numerical aperture of the optical fiber, outer cladding (5) being situated at the periphery of the low index peripheral segment (4), the multimode core being at least in part above the outer cladding (5), the peripheral segment (2) presenting a decreasing gradient shape.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: February 28, 2006
    Assignee: Draka Comteo
    Inventors: Lionel Provost, Gilles Melin, Andre Le Sauze, Anne Fleureau, Christian Simonneau, Xavier Rejeaunier
  • Optical fiber for amplification or for laser emission
    Publication number: 20050163449
    Abstract: The invention relates to the field of amplifying or emitting optical fibers. It comprises an amplifying optical fiber doped with a rare earth comprising a plurality of successive segments (1, 2, 3, 4, 5), presenting a monomode core and a multimode core, presenting at the periphery of the multimode core a peripheral segment (4) of low index so as to increase the numerical aperture of the optical fiber, outer cladding (5) being situated at the periphery of the low index peripheral segment (4), the multimode core being at least in part above the outer cladding (5), the peripheral segment (2) presenting a decreasing gradient shape.
    Type: Application
    Filed: May 26, 2004
    Publication date: July 28, 2005
    Inventors: Lionel Provost, Gilles Melin, Andre Le Sauze, Anne Fleureau, Christian Simonneau, Xavier Rejeaunier