Patents by Inventor Eric Mottay

Eric Mottay 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: 9362702
    Abstract: A system for the optical amplification of high-energy ultrashort light pulses, includes: an oscillator that can emit light pulses of sub-picosecond duration ?0, a pre-compensator, and a solid optical amplifier that can amplify the chirped light pulses. The pre-compensator has a negative group velocity dispersion, the pre-compensator being capable of generating negatively chirped light pulses, and the optical amplifier has a positive group velocity dispersion, the optical amplifier being disposed such as to receive and amplify the negatively chirped light pulses. The optical amplifier is configured such that the light pulses can induce a broadening of the spectral gain band ?? by self-phase modulation, such as to generate amplified, time-compressed light pulses of duration ?3, which is shorter than the duration ?=1/?? of the bandwidth limitation of the optical amplifier.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: June 7, 2016
    Assignee: AMPLITUDE SYSTÈMES
    Inventors: Martin Delaigue, Clemens Honninger, Eric Mottay
  • Publication number: 20150325972
    Abstract: A system for the optical amplification of high-energy ultrashort light pulses, includes: an oscillator that can emit light pulses of sub-picosecond duration ?0, a pre-compensator, and a solid optical amplifier that can amplify the chirped light pulses. The pre-compensator has a negative group velocity dispersion, the pre-compensator being capable of generating negatively chirped light pulses, and the optical amplifier has a positive group velocity dispersion, the optical amplifier being disposed such as to receive and amplify the negatively chirped light pulses. The optical amplifier is configured such that the light pulses can induce a broadening of the spectral gain band ?? by self-phase modulation, such as to generate amplified, time-compressed light pulses of duration ?3, which is shorter than the duration ?=1/?? of the bandwidth limitation of the optical amplifier.
    Type: Application
    Filed: April 12, 2013
    Publication date: November 12, 2015
    Inventors: Martin DELAIGUE, Clemens HONNINGER, Eric MOTTAY
  • Patent number: 8582200
    Abstract: A chirped pulse fiber amplifier with nonlinear compensation, includes elements for generating a light pulse having an initial peak-power P0 and an initial duration T, a stretcher including at least one optical diffraction network having a line density higher than 1200 lines/mm and suitable for time-stretching the pulse and of inserting a time asymmetry in the stretched pulse, an amplifying fiber including a doped optical fiber section coupled with an optical pumping element and suitable for amplifying the stretched pulse for producing a pulse having a power, a compressor with optical diffraction grating suitable for time-compressing the amplified pulse so that the stretcher and the compressor are mismatched, the mismatch between the stretcher and the compressor being suitable for simultaneously compensating the second- and third-order nonlinear dispersions in the amplifying fiber during the propagation of a pulse having an initial power P0 through the chirped pulse amplifier.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: November 12, 2013
    Assignee: Amplitude Systemes
    Inventors: Yoann Zaouter, Eric Mottay
  • Patent number: 8310749
    Abstract: An ultra-short high-power light pulse source including a first laser pump source (1), a mode-locked laser oscillator (2), a second laser pump source (4), a waveguide (6) capable of inserting spectral phases into the light pulses, and a compressor (8) capable of generating predetermined spectral phases into the light pulses. The waveguide (6) includes an element capable of compensating the predetermined spectral phases generated at least by the compressor (8), the second laser pump source (4) being capable of delivering a second pump light flow (5) having a power PL such that the spectral phases generated by the wave guide (6) are opposed or quasi opposed to the predetermined spectral phases generated by the compressor (8) in order to generate compressed ultra-short light pulses (9) at the output of the compressor (8) with a planar or quasi planar spectral phase.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: November 13, 2012
    Assignees: Amplitude Systemes, Institut d'Optique Graduate School, Centre National de la Recherche Scientifique
    Inventors: Eric Mottay, Patrick Georges, Yoann Zaouter, Marc Hanna, Dimitris Papadopoulos, Frederic Druon, Eric Cormier
  • Publication number: 20100309545
    Abstract: A chirped pulse fiber amplifier with nonlinear compensation, includes elements for generating a light pulse having an initial peak-power P0 and an initial duration T, a stretcher including at least one optical diffraction network having a line density higher than 1200 lines/mm and suitable for time-stretching the pulse and of inserting a time asymmetry in the stretched pulse, an amplifying fiber including a doped optical fiber section coupled with an optical pumping element and suitable for amplifying the stretched pulse for producing a pulse having a power, a compressor with optical diffraction grating suitable for time-compressing the amplified pulse so that the stretcher and the compressor are mismatched, the mismatch between the stretcher and the compressor being suitable for simultaneously compensating the second- and third-order nonlinear dispersions in the amplifying fiber during the propagation of a pulse having an initial power P0 through the chirped pulse amplifier.
    Type: Application
    Filed: January 15, 2009
    Publication date: December 9, 2010
    Applicant: AMPLITUDE SYSTEMES
    Inventors: Yoann Zaouter, Eric Mottay
  • Publication number: 20100188733
    Abstract: An ultra-short high-power light pulse source including a first laser pump source (1), a mode-locked laser oscillator (2), a second laser pump source (4), a waveguide (6) capable of inserting spectral phases into the light pulses, and a compressor (8) capable of generating predetermined spectral phases into the light pulses. The waveguide (6) includes an element capable of compensating the predetermined spectral phases generated at least by the compressor (8), the second laser pump source (4) being capable of delivering a second pump light flow (5) having a power PL such that the spectral phases generated by the wave guide (6) are opposed or quasi opposed to the predetermined spectral phases generated by the compressor (8) in order to generate compressed ultra-short light pulses (9) at the output of the compressor (8) with a planar or quasi planar spectral phase.
    Type: Application
    Filed: June 13, 2008
    Publication date: July 29, 2010
    Applicants: AMPLITUDE SYSTEMES, INSTITUT D'OPTIQUE GRADUATE SCHOOL,, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Eric Mottay, Patrick Georges, Yoann Zaouter, Marc Hanna, Dimitris Papadopoulos, Frederic Druon, Eric Cormier
  • Patent number: 7508847
    Abstract: A rare earth ion ultrashort laser source includes a resonant cavity having a first output face partially reflecting and a second reflecting face. The source also includes a first active material, which receives a pump luminous flux transmitted via a first solid laser pump source. The resonant cavity exhibits a length of optical path travelled by the pulses greater than 7.5 m so that the pulsed energy EL is greater than 100 nJ, the optical path including at least one passage in the active material and the ultrashort laser source includes elements for lengthening the resonant cavity thereby enabling to extend the length of the optical path travelled by the luminous pulses in the resonant cavity, the ABCD propagation matrix of the resonant cavity being close to the unit matrix so that the features of the luminous beam going back and forth in the resonant cavity remain unchanged.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: March 24, 2009
    Assignees: Amplitude Systemes, Centre National de la Recherche Scientifique (CNRS), Universite de Bordeaux 1
    Inventors: Clemens Honninger, Antoine Courjaud, Eric Mottay, François Salin
  • Publication number: 20080304525
    Abstract: The invention concerns a method for internal laser marking in transparent materials, for example for marking an identifier (5) for an object made of transparent material (6). The invention is characterized in that a diode-pumped femtosecond laser source (1) is used for non-aggressive high-contrast marking to generate laser pulses (13) which are successively focused on different points (23) of the marking (5) to be produced and enabling high-speed marking operations, typically faster than 0.1 mm2 per second to be performed.
    Type: Application
    Filed: September 22, 2006
    Publication date: December 11, 2008
    Inventors: Axel Kupisiewicz, Eric Mottay
  • Publication number: 20070160104
    Abstract: The invention relates to a rare earth ion ultrashort laser source including a resonant cavity (1) having a first output face (2) partially reflecting and a second reflecting face (3). Said source also comprises a first active material (4). Said first material (4) receives a pump luminous flux (6) transmitted via a first solid laser pump source (7). According to the invention, the resonant cavity (1) exhibits a length of optical path travelled by said pulses greater than 7.
    Type: Application
    Filed: January 25, 2005
    Publication date: July 12, 2007
    Applicants: AMPLITUDE SYSTEMS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), UNIVERSITE DE BORDEAUX 1
    Inventors: Clemens Honninger, Antoine Courjaud, Eric Mottay, Francois Salin
  • Patent number: 7110111
    Abstract: A wide-spectrum compact ultrabrief laser source includes a rare-earth ion primary laser. The source is pumped by a pump light flux centered on a wavelength ?D, the flux being emitted by a solid laser pump source. The primary source emits a primary light flux centered on a wavelength ?L of spectral width ??L. The latter is injected via an optical injection into a photonic crystal fiber having a length L, a cross-section d, and a set of cavities of diameter ?. A coupling optics collects the light flux at the output of the photonic crystal fiber. The light flux is centered on a wavelength ?F and has a spectral width ??F. The spectrum is subjected in the photonic crystal fiber to an enlargement which is due for more than 50% to phase self-modulation.
    Type: Grant
    Filed: July 27, 2002
    Date of Patent: September 19, 2006
    Assignee: Amplitude Systemes
    Inventor: Eric Mottay
  • Publication number: 20050024635
    Abstract: The invention concerns a wide spectrum ultrashort compact laser source including a laser primary source (6) with rare earth ions. This source (6) is pumped by a luminous pump flux (9) centred on a wavelength ?D, said flux (9) being emitted by a solid laser pump source (8). The primary source (6) emits a primary luminous flux (7) centred on a wavelength ?L of spectral width ??L. The latter is injected by means of injection optics (10) into a photonic crystal fibre (2) having a length L, a section d, and a set of cavities (4) of diameter ?. Coupling optics (15) collect the luminous flux (12) at the output of the fibre with phonic crystals (2). This luminous flux (12) is centred on a wavelength ?F and has a spectral width ??F. The spectrum is subjected inside the photonic crystal fibre (2) to a widening due for more than 50% of the phase self-modulation.
    Type: Application
    Filed: July 27, 2001
    Publication date: February 3, 2005
    Inventor: Eric Mottay
  • Patent number: 6061377
    Abstract: A light amplifier device comprises an amplifier medium plate consisting of an upper part comprising two lateral faces (11) and (12) and a lower part comprising two lateral faces (13) and (14), the lateral faces (11) and (13) being located on a first face of the amplifier medium, the lateral faces (12) and (14) being located on a second face of the amplifier medium opposite said first face, at least two light beams (2) and (2') amplified by the amplifier medium and optical pumping means of said amplifier medium, wherein the light beam (2) is introduced into the amplifier medium at a lateral face (11) or (12) and the light beam (2') is introduced into the amplifier medium at a lateral face (13) or (14). The faces (11) and (12) are antiparallel to each other, the faces (13) and (14) being also antiparallel to each other. Application to power lasers.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: May 9, 2000
    Assignee: Thomson-CSF
    Inventors: Gilles Brassart, Thierry Fayette, Eric Mottay, Jean-Pierre Treton