Patents by Inventor Noël Dimarcq

Noël Dimarcq 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).

  • Patent number: 9690165
    Abstract: According to a first aspect, the invention relates to a generator of at least three coherent laser beams at least one beam of which is in the infrared domain and at least one beam of which is in the visible domain, comprising: an elementary source for emitting a first continuous-wave laser beam, at a first given infrared wavelength; a nonlinear crystal frequency doubler, allowing, from a first beam sampled from the first laser beam at the first wavelength, a second laser beam to be generated at a second wavelength; and a nonlinear crystal sum frequency generator, allowing, from a second beam sampled from the first laser beam at the first wavelength and from the second laser beam at the second wavelength, a third laser beam to be generated at a third wavelength.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: June 27, 2017
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, Observatoire De Paris
    Inventors: Mohand Ouali Acef, Frédéric Du Burck, Noël Dimarcq
  • Publication number: 20160124286
    Abstract: According to a first aspect, the invention relates to a generator of at least three coherent laser beams at least one beam of which is in the infrared domain and at least one beam of which is in the visible domain, comprising: an elementary source for emitting a first continuous-wave laser beam, at a first given infrared wavelength; a nonlinear crystal frequency doubler, allowing, from a first beam sampled from the first laser beam at the first wavelength, a second laser beam to be generated at a second wavelength; and a nonlinear crystal sum frequency generator, allowing, from a second beam sampled from the first laser beam at the first wavelength and from the second laser beam at the second wavelength, a third laser beam to be generated at a third wavelength.
    Type: Application
    Filed: April 15, 2014
    Publication date: May 5, 2016
    Applicants: Observatoire De Paris, Centre Nationale de la Recherche Scientifique - CNRS
    Inventors: Mohand Ouali Acef, Frédéric Du Burck, Noël Dimarcq
  • Patent number: 8385376
    Abstract: The invention relates to a laser source with an external cavity generating a useful laser beam (Fu), that comprises at least one laser diode DL (10) mounted in an extended optical cavity (30, 82) defined between two reflecting surfaces (92, 48) forming an optical path for a laser beam Fd generated by the laser diode DL, a mode selection filter (44, 86) in the optical path of the cavity for selecting a resonance mode from a range of resonance modes of the laser beam in the cavity.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: February 26, 2013
    Assignees: Thales and Centre National d'Etudes Spatiales, Observatoire de Paris
    Inventors: David Holleville, Noel Dimarcq
  • Publication number: 20110038389
    Abstract: The invention relates to a laser source with an external cavity generating a useful laser beam (Fu), that comprises at least one laser diode DL (10) mounted in an extended optical cavity (30, 82) defined between two reflecting surfaces (92, 48) forming an optical path for a laser beam Fd generated by the laser diode DL, a mode selection filter (44, 86) in the optical path of the cavity for selecting a resonance mode from a range of resonance modes of the laser beam in the cavity.
    Type: Application
    Filed: April 24, 2008
    Publication date: February 17, 2011
    Applicant: THALES
    Inventors: David Holleville, Stephanie Perrin, Noel Dimarcq, Francois-Xavier Esnault
  • Patent number: 7501906
    Abstract: Method for modulating an atomic clock signal and a corresponding atomic clock. The laser beams (L1, L2) are pulse-modulated in amplitude to illuminate (A) an interactive medium. A detection (B) of the current pulse (Sr) and of the pulses (Sr?1 to Sr?p) preceding said current impulsion is performed. The pulses are superimposed (C) by linear combination to generate a compensated atomic clock signal (SHC) whereof the spectral width is minimized. The invention is applicable to atomic clocks with pulsed interrogation whereof the interactive medium consists of thermal or laser-cooled atoms.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: March 10, 2009
    Assignee: Centre National de la Recherche Scientifique- C.N.R.S
    Inventors: Noël Dimarcq, Stéphane Guerandel, Thomas Zanon, David Holleville
  • Publication number: 20070200643
    Abstract: Method for modulating an atomic clock signal and a corresponding atomic clock. The laser beams (L1, L2) are pulse-modulated in amplitude to illuminate (A) an interactive medium. A detection (B) of the current pulse (Sr) and of the pulses (Sr?1 to Sr?p) preceding said current impulsion is performed. The pulses are superimposed (C) by linear combination to generate a compensated atomic clock signal (SHC) whereof the spectral width is minimized. The invention is applicable to atomic clocks with pulsed interrogation whereof the interactive medium consists of thermal or laser-cooled atoms.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 30, 2007
    Inventors: Noel Dimarcq, Stephane Guerandel, Thomas Zanon, David Holleville