Patents by Inventor Veronique Verdrager

Veronique Verdrager 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).

  • Bragg grating filter optical waveguide device
    Patent number: 6757462
    Abstract: The present invention relates to a Bragg grating filter optical waveguide device, comprising an optical fiber provided with a Bragg grating region which is externally strained to alter the range of chirping. The external strain is induced by a gradient-generating mechanical body bonded onto the length of the fiber grating.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: June 29, 2004
    Assignee: Avanex Corporation
    Inventors: Véronique Verdrager, Jean-Jacques Guerin, Isabelle Riant
  • Cromatic dispersion compensator
    Publication number: 20030035625
    Abstract: The present invention relates to a chromatic dispersion compensator comprising a Bragg grating with quadratically varying pitch, said Bragg grating having a group time response with a quadratic component Q1 and a linear component L1, and the compensator further comprising a Bragg grating with linearly varying pitch, said Bragg grating with linearly varying pitch having a group time response with a linear component L2, and said linear components L1 and L2 being opposite in sign.
    Type: Application
    Filed: July 11, 2002
    Publication date: February 20, 2003
    Applicant: ALCATEL
    Inventors: Isabelle Riant, Veronique Verdrager
  • Tunable wideband dispersion compensator
    Publication number: 20030026543
    Abstract: A system for compensating chromatic dispersion includes a long variable pitch Bragg grating written in an optical fiber in which wavelength division multiplexed transmission channels propagate. A system for generating a thermal gradient includes at least two heating systems distributed over the grating and controlled independently of each other to compensate simultaneously the chromatic dispersion on a plurality of transmission channels.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 6, 2003
    Applicant: ALCATEL
    Inventors: Veronique Verdrager, Jean-Jacques Guerin, Isabelle Riant
  • Bragg grating filter optical waveguide device
    Publication number: 20020168141
    Abstract: The present invention relates to a Bragg grating filter optical waveguide device, comprising an optical fiber provided with a Bragg grating region which is externally strained to alter the range of chirping. The external strain is induced by a gradient-generating mechanical body bonded onto the length of the fiber grating.
    Type: Application
    Filed: April 4, 2002
    Publication date: November 14, 2002
    Applicant: ALCATEL
    Inventors: Veronique Verdrager, Jean-Jacques Guerin, Isabelle Riant
  • Temperature compensating device for optical fibre gratings
    Publication number: 20020154862
    Abstract: The present invention relates to a temperature compensating device for a prestrained fiber grating of an optical fiber, wherein said device comprises a body with a substantially cylindrical form and wherein the fiber grating is wound up on said body, whereby the dimensions of said body vary according to a change in temperature. The temperature compensating devive according to the invention is athermal and allows a tunig of the wavelength of the fiber grating.
    Type: Application
    Filed: April 4, 2002
    Publication date: October 24, 2002
    Applicant: ALCATEL
    Inventors: Jean-Jacques Guerin, Isabelle Riant, Veronique Verdrager