Patents by Inventor Marc Chenevier

Marc Chenevier 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).

  • Laser device coupled to a cavity by optical feedback for detecting gas traces
    Patent number: 7450240
    Abstract: A device of detection of gas in trace amounts by a semiconductor laser coupled to a resonant optical cavity containing a chemical species to be analyzed. The device comprises a resonant optical cavity containing a chemical species to be analyzed; a semiconductor laser, coupled by optical feedback to the optical cavity and capable of being frequency-scanned; a means for adjusting the laser-cavity coupling rate; a means for finely adjusting the optical feedback phase; and a means for measuring the light transmitted by the cavity.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: November 11, 2008
    Assignee: Universite Joseph Fourier
    Inventors: Jérôme Morville, Daniele Romanini, Marc Chenevier
  • Laser device coupled to a cavity by optical feedback for detecting gas traces
    Publication number: 20050073687
    Abstract: A device of detection of gas in trace amounts by a semiconductor laser coupled to a resonant optical cavity containing a chemical species to be analyzed. The device comprises a resonant optical cavity containing a chemical species to be analyzed; a semiconductor laser, coupled by optical feedback to the optical cavity and capable of being frequency-scanned; a means for adjusting the laser-cavity coupling rate; a means for finely adjusting the optical feedback phase; and a means for measuring the light transmitted by the cavity.
    Type: Application
    Filed: October 9, 2002
    Publication date: April 7, 2005
    Inventors: Jerome Morville, Daniele Romanini, Marc Chenevier