Patents by Inventor Constance Valentin

Constance Valentin 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).

  • Device for converting the transverse spatial profile of intensity of a light beam, preferably using a microstructured optical fibre
    Patent number: 9488780
    Abstract: A device for converting transverse spatial profile of intensity of a light beam, using a microstructured optical fiber. Transverse dimensions of the fiber vary longitudinally and both its ends have opto-geometrical parameters such that at the wavelength of the beam the fiber has a fundamental mode having two different profile shapes at its two ends. Thus by introducing the beam with one of the profiles through one of the two ends, the beam emerges through the other end with the other profile, whose shape is different from that of the profile of the introduced beam.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: November 8, 2016
    Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, UNIVERSITE LILLE 1 SCIENCES ET TECHNOLOGIES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Emmanuel Hugonnot, Arnaud Mussot, Yves Quiquempois, Geraud Bouwmans, Laurent Bigot, Constance Valentin
  • Microstructured optical fibre having a large core and a flattened fundamental mode, production method thereof and use of same in laser microfabrication
    Patent number: 9244219
    Abstract: The fiber comprises a core (2) having an index N and diameter of 10 ?m or more, surrounded by a ring (4) having an index N+?n and thickness ?R, and cladding (6) surrounding the ring and comprising for example air gaps (8). According to the invention: ?n?10?3 and ?R=?/(?n)? [1] where: 5×10?4 ?m???5×10?2 ?m and 0.5???1.5. The numbers ? and ? are dependent on the wavelength ? of the light guided by the fiber, the number of missing gaps therein, the diameter d of the gaps, the spacing ? thereof and N. To design the fiber, ?, the number of missing gaps, d/?, the core doping content, ? and ?n are chosen; and ?R is determined using equation [1] so as to obtain a flattened fundamental mode.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: January 26, 2016
    Assignees: Commissariat a L'Energie Atomique et aux Energies Alternatives, Universite Lille 1 Sciences et Technologies, Centre National de la Recherche Scientifique
    Inventors: Emmanuel Hugonnot, Laure Lago, Arnaud Mussot, Yves Quimquenpois, Géraud Bouwmans, Laurent Bigot, Constance Valentin
  • DEVICE FOR CONVERTING THE TRANSVERSE SPATIAL PROFILE OF INTENSITY OF A LIGHT BEAM, PREFERABLY USING A MICROSTRUCTURED OPTICAL FIBRE
    Publication number: 20150139595
    Abstract: A device for converting transverse spatial profile of intensity of a light beam, using a microstructured optical fiber. Transverse dimensions of the fiber vary longitudinally and both its ends have opto-geometrical parameters such that at the wavelength of the beam the fiber has a fundamental mode having two different profile shapes at its two ends. Thus by introducing the beam with one of the profiles through one of the two ends, the beam emerges through the other end with the other profile, whose shape is different from that of the profile of the introduced beam.
    Type: Application
    Filed: March 5, 2013
    Publication date: May 21, 2015
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE ALT, UNIVERSITE LILLE 1 SCIENCES ET TECHNOLOGIES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Emmanuel Hugonnot, Arnaud Mussot, Yves Quiquepois, Geraud Bouwmans, Laurent Bigot, Constance Valentin
  • Microstructured Optical Fibre Having A Large Core And A Flattened Fundamental Mode, Production Method Thereof And Use Of Same In Laser Microfabrication
    Publication number: 20140233900
    Abstract: The fibre comprises a core (2) having an index N and diameter of 10 ?m or more, surrounded by a ring (4) having an index N+?n and thickness ?R, and cladding (6) surrounding the ring and comprising for example air gaps (8). According to the invention: ?n?10?3 and ?R=?/(?n)? [1] where: 5×10?4 ?m???5×10?2 ?m and 0.5???1.5. The numbers ? and ? are dependent on the wavelength ? of the light guided by the fibre, the number of missing gaps therein, the diameter d of the gaps, the spacing ? thereof and N. To design the fibre, ?, the number of missing gaps, d/?, the core doping content, ?0 and ?n are chosen; and ?R is determined using equation [1] so as to obtain a flattened fundamental mode.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 21, 2014
    Applicants: Commissariat à I'énergie atomique et aux énergies alternatives, Universite Lille 1 Sciences Et Technologies, Centre National De La Recherche Scientifique
    Inventors: Emmanuel Hugonnot, Laure Lago, Arnaud Mussot, Yves Quiquempois, Géraud Bouwmans, Laurent Bigot, Constance Valentin