Patents by Inventor Stéphane DENET

Stéphane DENET 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).

  • Vertical external cavity surface emitting laser devices allowing high coherence, high power and large tunability
    Patent number: 9774165
    Abstract: A laser device is provided for generating an optical wave at a laser frequency, including (i) a semiconductor element having a gain region with quantum wells, the gain region being located between a first mirror and an exit region defining an optical microcavity, (ii) a second mirror distinct from the semiconductor element and arranged so as to form with the first mirror an external optical cavity including the gain region, (iii) a pump for pumping the gain region so as to generate the optical wave, wherein the optical microcavity with the gain region and the external optical cavity are arranged so that a spectral ratio between the Half Width Half Maximum (HWHM) spectral bandwidth of the modal gain and a free spectral range of the external cavity in the range of 2 to 50.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: September 26, 2017
    Assignees: UNIVERSITE DE MONTPELLIER, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, INNOPTICS
    Inventors: Arnaud Garnache-Creuillot, Mikhaël Myara, Isabelle Sagnes, Grégoire Beaudoin, Laurence Ferrieres, Vincent Lecocq, Stéphane Denet
  • VERTICAL EXTERNAL CAVITY SURFACE EMITTING LASER DEVICES ALLOWING HIGH COHERENCE, HIGH POWER AND LARGE TUNABILITY
    Publication number: 20170117684
    Abstract: A laser device is provided for generating an optical wave at a laser frequency, including (i) a semiconductor element having a gain region with quantum wells, the gain region being located between a first mirror and an exit region defining an optical microcavity, (ii) a second mirror distinct from the semiconductor element and arranged so as to form with the first mirror an external optical cavity including the gain region, (iii) a pump for pumping the gain region so as to generate the optical wave, wherein the optical microcavity with the gain region and the external optical cavity are arranged so that a spectral ratio between the Half Width Half Maximum (HWHM) spectral bandwidth of the modal gain and a free spectral range of the external cavity in the range of 2 to 50.
    Type: Application
    Filed: May 21, 2015
    Publication date: April 27, 2017
    Inventors: Arnaud GARNACHE-CREUILLOT, Mikhaël MYARA, Isabelle SAGNES, Grégoire BEAUDOUIN, Laurence FERRIERES, Vincent LECOCQ, Stéphane DENET
  • DEVICE FOR WELDING THERMOPLASTIC MEMBRANES
    Publication number: 20130025793
    Abstract: The invention relates to a device (21) for welding a first thermoplastic membrane (12) to a second thermoplastic membrane (13), in which at least the first thermoplastic membrane (12) or the second thermoplastic membrane (13) is absorbent. The invention is characterised in that the welding device (21) comprises at least one die (1) including a plurality of laser diodes (2) for emitting a laser beam (F) forming direct, simultaneous and uniform illumination on the illumination surface (23) of the first thermoplastic membrane (12).
    Type: Application
    Filed: March 9, 2011
    Publication date: January 31, 2013
    Applicants: INNOPTICS, PLASTICELL
    Inventors: Marc Le Monnier, Stephane Denet, Vincent Lecocq