Patents by Inventor Vincent Couderc
Vincent Couderc 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).
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Publication number: 20120177070Abstract: A system for emitting a polychromatic light, has a laser cavity device used to optically pump the laser cavity emit radiation according to at least one excitation wavelength and light guiding mechanism arranged in such a way as to supply a polychromatic light to an outlet in the event of excitation by the radiation in a non-linear interaction regime. In the system, the guiding mechanism is arranged inside a cavity formed by at least two sub-cavities, a first sub-cavity forming the laser cavity and a second sub-cavity comprising the guiding mechanism, the first and second sub-cavities being coupled.Type: ApplicationFiled: June 17, 2010Publication date: July 12, 2012Applicants: COMPAGNIE INDUSTRIELLE DES LASERS CILAS (CILAS), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRSInventors: Vincent Couderc, Philippe Paul Leproux, Florent Doutre, Dominique Pagnoux
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Publication number: 20120170606Abstract: A laser system having a cavity formed by at least two sub-cavities and a mechanism for optically pumping a first of the at least two sub-cavities. In the system, the optical pumping mechanism is arranged in such away to not reach a laser emission threshold of the first sub-cavity, the first sub-cavity (2) comprising a device for generating a short pulse, a second sub-cavity (3) comprising an external triggering device. The first and second sub-cavities are coupled such that the triggering of the second sub-cavity has at least two such laser systems, to a light emission system with a wide spectral band, comprising such a laser system and a mechanism for generating non-linear optical effects inserted into the second sub-cavity, and to a light generator with a wide spectral band, comprising such a laser generator having at least one laser system provided with a mechanism for generating non-linear optical effects inserted into the second sub-cavity.Type: ApplicationFiled: June 17, 2010Publication date: July 5, 2012Applicants: COMPAGNIE INDUSTRIELLE DES LASERS CILAS (CILAS), CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE- CNRSInventors: Vincent Couderc, Philippe Paul Leproux, Florent Doutre, Dominique Pagnoux
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Publication number: 20120038916Abstract: A method and device is provided for characterizing microscopic elements. A source signal may be chopped by means of microsystems of opto-electromechanical elements (MOEMS), which gives rise to temporal modulation of the excitation signals. The method of characterizing microscopic elements involves propagating a dispersed light source signal, spatially chopping the spectrum of the source signal into at least two excitation signals having predetermined wavelengths ?i, coding the excitation signals, focusing the excitation signals in order to generate a sensor signal propagated towards a measurement zone, and analyzing an interaction signal issuing from the interaction of the sensor signal with the microscopic elements situated in the measuring space. The spatial chopping of the spectrum of the source light signal is performed by a microsystem of opto-electromechanical elements (MOEMS).Type: ApplicationFiled: April 1, 2011Publication date: February 16, 2012Applicants: C.N.R.S. Centre National de la Recherche Scientifique, Universite de LimogesInventors: Vincent Couderc, Philippe LeProux, Laurent LeFort, David Bouyge, Christelle Lesvigne-Buy, Aurelian Crunteanu Stanescu
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Publication number: 20110291492Abstract: The present disclosure relates to a high-voltage pulse generator including a “frozen-wave” generation system for generating high-voltage pulses and a trigger system for triggering the pulses, the generation system including a first and a second photoconductor element, wherein the triggering system includes means for generating a laser light beam and means for splitting the laser beam into two laser beam fractions, each laser beam fraction being directed onto a photoconductor element of the generation system, the splitting means being capable of controlling the distribution of the respective powers of the two laser beam fractions as a function of the orientation of the polarization of the laser beam. The present disclosure also relates to a facility comprising multiple high-voltage pulse generators and electrooptic pump-probe equipment operating such a high-voltage pulse generator.Type: ApplicationFiled: April 10, 2009Publication date: December 1, 2011Applicants: UNIVERSITE DE LIMOGES, INSTITUT FRANCO-ALLEMAND DE RECHERCHES DE SAINT-LOUIS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRSInventors: Vincent Couderc, Bertrand Vergne, Philippe Leveque
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Publication number: 20110206314Abstract: The disclosure relates to an optical waveguide serving to propagate an original light signal, the optical waveguide including a non-linear waveguide first core that is suitable for generating leaky modes from the original light signal, the waveguide including at least a second core, the first core being included in the second core, the second core being arranged relative to the first core in such a manner as to confine at least the leaky modes generated by the first core from the original light signal outside the first core. By the above-described waveguide, in particular by the non-linearities of the first core of the waveguide, a light continuum can be generated inside the fiber by collinear phase matching. In addition, by Cerenkov effect, other wavelengths are generated by the wavelengths of the continuum by non-collinear phase matching.Type: ApplicationFiled: March 1, 2007Publication date: August 25, 2011Applicant: Centre National De La Recherche Scientifique -CNRSInventors: Vincent Couderc, Paul-Henri Pioger, Alain Barthelemy, Philippe Paul Leproux, Dominique Pagnoux, Guillaume Huss
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Publication number: 20110199609Abstract: A method and device is provided for characterizing microscopic elements. A source signal may be chopped by means of microsystems of opto-electromechanical elements (MOEMS), which gives rise to temporal modulation of the excitation signals. The method of characterizing microscopic elements involves propagating a dispersed light source signal, spatially chopping the spectrum of the source signal into at least two excitation signals having predetermined wavelengths ?i, coding the excitation signals, focusing the excitation signals in order to generate a sensor signal propagated towards a measurement zone, and analyzing an interaction signal issuing from the interaction of the sensor signal with the microscopic elements situated in the measuring space. The spatial chopping of the spectrum of the source light signal is performed by a microsystem of opto-electromechanical elements (MOEMS).Type: ApplicationFiled: October 10, 2008Publication date: August 18, 2011Applicant: UNIVERSITE DE LIMOGESInventors: Vincent Couderc, Philippe LeProux, Laurent LeFort, David Bouyge, Christelle Lesvigne-Buy, Aurelian Crunteanu Stanescu
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Publication number: 20110194812Abstract: A microstructured optical fiber for generating broadband white light having a core doped with germanium and silica cladding surrounding the core, the cladding including a plurality of holes arranged in the form of a regular mesh, wherein the diameter F of a hole in the cladding, the pitch L between the respective centers of two neighboring holes in the cladding, and the refractive index difference Dn between the germanium-doped fiber core and the silica of the cladding are such that the fiber can generate white light on the fundamental mode over a wavelength band having a width of at least 1000 nm.Type: ApplicationFiled: August 12, 2010Publication date: August 11, 2011Inventors: Gilles Melin, Simon Lempereur, Anne Fleureau, Vincent Couderc, Philippe Laproux, Alexandre Kudlinski
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Publication number: 20100309936Abstract: The invention relates to a passively triggered microchip laser (1) formed by a cavity closed by an input mirror (4) and an output mirror (5), characterised in that the cavity includes deflection means (9, 10, 11, 12, 13) designed to deflect a light beam (14) between the input mirror (4) and the output mirror (5).Type: ApplicationFiled: May 14, 2008Publication date: December 9, 2010Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, UNIVERSITE DE LIMOGES, HORUS LASERInventors: Laurent Lefort, Paul-Henri Pioger, Vincent Couderc
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Patent number: 7800817Abstract: A device for producing a polychromatic light including an optical pump that delivers a first radiation at a first wavelength; a light guide; and a selective injector that injects the radiation into the guide, the guide being arranged to generate a harmonic corresponding to the selected injector and provide a polychromatic light at an outlet, by non-linear excitation of the first radiation and the harmonic.Type: GrantFiled: April 14, 2006Date of Patent: September 21, 2010Assignees: Centre National de la Recherche Scientifique-CNRS, Universite de LimogesInventors: Vincent Couderc, Philippe Leproux, Vincent Tombelaine, Pierre-Alain Champert, Sébastien Février, Alain Barthélémy, Jean-Louis Auguste, Jean-Marc Blondy
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Patent number: 7768691Abstract: A dedicated polychromatic light generating device including optical pumping devices used to deliver radiation with at least two different excitation wavelengths and a light-guiding device used to deliver polychromatic light at an output when excited by the radiation in a non-linear interaction regime.Type: GrantFiled: March 8, 2005Date of Patent: August 3, 2010Assignees: Horiba ABX SAS, Universite de Limoges, Centre National de la Recherche Scientifique CNRSInventors: Philippe Nerin, Pierre-Alain Champert, Sébastien Fevrier, Philippe Roy, Vincent Couderc, Philippe Leproux, Ludovic Grossard
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Publication number: 20100158054Abstract: The invention relates to a device (1) for generating short pulses, said device being characterised in that it comprises: a polarised pulse laser (10, 2, 3) having a polarisation direction; a bi-refringent optical fibre (6) having bi-refringence axes, wherein said polarisation direction is not co-linear with said bi-refringence axes; an output polariser (9) provided at the output of said fibre, said polariser being capable of selecting a polarisation at the output of said fibre; wherein said pulse laser in a longitudinally quasi-single mode laser.Type: ApplicationFiled: November 21, 2007Publication date: June 24, 2010Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRSInventors: Paul-Henri Pioger, Bertrand Vergne, Vincent Couderc, Alain Barthelemy
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Publication number: 20100080523Abstract: The invention relates to a micro-structured optical fibre (1) including at least one core (7, 7A, 7B, 7C, 7D1 7E, 7F) with a core space symmetry, characterised in that said core contains at least one doping material distributed in said core according to a dissymmetrical implantation relative to said at least one symmetry axis.Type: ApplicationFiled: December 12, 2007Publication date: April 1, 2010Inventors: Christelle Lesvigne, Vincent Couderc, Philippe Leproux, Jean-Louis Auguste, Guillaume Huss
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Patent number: 7605632Abstract: A high power electric pulse generator includes a charge storage device, a high voltage source for charging the charge storage device, a first photoconductor element connected to the reference potential and to the storage device, a second photoconductor element connected to the storage device and to a useful load, a first light source for delivering a pulse of light to the first photoconductor, a second light source for delivering a pulse of light to the second photoconductor and a synchronization device for synchronizing the emission delay between the first light source and the second light source. The first photoconductor and the second photoconductor are passive semiconductor elements with a linear regime forming photosensitive switches, with the first and second photoconductors being doped silicon photoconductors.Type: GrantFiled: June 30, 2008Date of Patent: October 20, 2009Assignees: CNRS (Centre National de la Recherche Scientifique), Universite de LimogesInventors: Vincent Couderc, Bertrand Vergne, Alain Barthelemy, Dominique Gontier, Patrick Brunel
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Publication number: 20090213614Abstract: A device for producing a polychromatic light including an optical pump that delivers a first radiation at a first wavelength; a light guide; and a selective injector that injects the radiation into the guide, the guide being arranged to generate a harmonic corresponding to the selected injector and provide a polychromatic light at an outlet, by non-linear excitation of the first radiation and the harmonic.Type: ApplicationFiled: April 14, 2006Publication date: August 27, 2009Applicants: Centre National De La Recherche Scientifique-CNRS, Universite De LimogesInventors: Vincent Couderc, Philippe Leproux, Vincent Tombelaine, Pierre-Alain Champert, Sebastien Fevrier, Alain Barthelemy, Jean-Louis Auguste, Jean-Marc Blondy
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Publication number: 20090009227Abstract: A high power electric pulse generator includes a charge storage device, a high voltage source for charging the charge storage device, a first photoconductor element connected to the reference potential and to the storage device, a second photoconductor element connected to the storage device and to a useful load, a first light source for delivering a pulse of light to the first photoconductor, a second light source for delivering a pulse of light to the second photoconductor and a synchronization device for synchronizing the emission delay between the first light source and the second light source. The first photoconductor and the second photoconductor are passive semiconductor elements with a linear regime forming photosensitive switches, with the first and second photoconductors being doped silicon photoconductors.Type: ApplicationFiled: June 30, 2008Publication date: January 8, 2009Inventors: Vincent Couderc, Bertrand Vergne, Alain Barthelemy, Dominique Gontier, Patrick Brunel
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Publication number: 20070216989Abstract: A dedicated polychromatic light generating device including optical pumping devices used to deliver radiation with at least two different excitation wavelengths and a light-guiding device used to deliver polychromatic light at an output when excited by the radiation in a non-linear interaction regime.Type: ApplicationFiled: March 8, 2005Publication date: September 20, 2007Applicants: HORIBA ABX SAS, Universite De Limoges, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRSInventors: Philippe Nerin, Pierre-Alain Champert, Sebastien Fevrier, Philippe Roy, Vincent Couderc, Philippe Leproux, Ludovic Grossard