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: 20230101792Abstract: A device for generating a plasma and detecting a light signal. The plasma being intended to be generated in the vicinity of a study area of a sample and the light signal originating in the study area. The device including a current generator, an analysis unit, and an electrical and optical waveguide including means for transmitting an electric current configured to generate a plasma at one end of the means for transmitting the electric current in the vicinity of the study zone, means for detecting and transmitting configured to detect and transmit the light signal from the study area to the analysis unit, and an optical cladding portion, the means for transmitting the electric current and the means for detecting and transmitting the light signal being accommodated in the optical cladding portion.Type: ApplicationFiled: August 24, 2021Publication date: March 30, 2023Inventors: Sylvain DANTO, Clément STRUTYNSKI, Frédéric DESEVEDAVY, Lionel TEULEGAY, Vincent COUDERC, Frédéric SMEKTALA, Thierry CARDINAL
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Patent number: 11258227Abstract: Some embodiments relate to a generation device that includes: a pulsed laser source generating primary photons having at least one wavelength within pulses having time dissymmetry, a forming device(s) controlling the primary photons so as to generate a selective-polarization, focused input beam, and an optical fiber wherein the primary photons induce secondary photons having different wavelengths resulting from a raman conversion cascade and forming a wide-spectrum output beam having substantially constant energy.Type: GrantFiled: January 20, 2017Date of Patent: February 22, 2022Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE LIMOGESInventors: Christophe Louot, Dominique Pagnoux, Katarzyna Krupa, Badr Shalaby, Alexis Labruyère, Alessandro Tonello, Vincent Couderc
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Publication number: 20210296841Abstract: A wave guide may have an index profile including at least one maximum. The maximum or maxima of the index profile may correspond respectively to at least one maximum intensity of the outlet radiation with a mode of desired order. The wave guide may also have at least one doping ion configured to absorb the pump radiation. The doping ion or ions may have a concentration profile of doping ions including at least one maximum.Type: ApplicationFiled: March 22, 2021Publication date: September 23, 2021Inventors: Guy MILLOT, Vincent COUDERC, Katarzyna KRUPA, Alessandro TONELLO, Stefan WABNITZ, Jean-Eucher MONTAGNE
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Patent number: 10718991Abstract: Some embodiments are directed to a generating device, including a pulse laser source providing primary photons having at least one wavelength, shaping device(s) acting on the primary photons to provide an input beam, a nonlinear crystal, and controller(s) generating, in the nonlinear crystal, at least one electric field that is synchronous with the input beam and suitable for inducing a phase mismatching in the nonlinear crystal through an electro-optical effect, in order to convert the primary photons of the input beam into secondary photons having wavelengths belonging to a supercontinuum.Type: GrantFiled: January 20, 2017Date of Patent: July 21, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE LIMOGESInventors: Katarzyna Krupa, Badr Shalaby, Alexis Labruyère, Alessandro Tonello, Vincent Couderc
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Patent number: 10608403Abstract: A generating device includes at least one pulsed laser source that delivers primary photons having at least one wavelength in a single spatial mode and in pulses having a high pump energy, forming means that act on the primary photons to deliver an input beam, and at least one optical fiber having at least ten modes between which the pump energy is initially distributed, and able to relocate the latter via a non-linear effect into a fundamental mode, before generating secondary photons of various wavelengths by wavelength conversions from the wavelength of the primary photons in the fundamental spatial mode.Type: GrantFiled: March 31, 2017Date of Patent: March 31, 2020Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LIMOGESInventors: Katarzyna Krupa, Badr Shalaby, Alessandro Tonello, Vincent Couderc
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Publication number: 20190123506Abstract: A generating device includes at least one pulsed laser source that delivers primary photons having at least one wavelength in a single spatial mode and in pulses having a high pump energy, forming means that act on the primary photons to deliver an input beam, and at least one optical fiber having at least ten modes between which the pump energy is initially distributed, and able to relocate the latter via a non-linear effect into a fundamental mode, before generating secondary photons of various wavelengths by wavelength conversions from the wavelength of the primary photons in the fundamental spatial mode.Type: ApplicationFiled: March 31, 2017Publication date: April 25, 2019Inventors: Katarzyna KRUPA, Badr SHALABY, Alessandro TONELLO, Vincent COUDERC
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Patent number: 10243316Abstract: The invention relates to a method for triggering a pulsed light source, wherein it comprises at least one iteration of the following steps: receiving a control signal; determining what is called a separation time between the reception of said control signal and at least one preceding control signal; adjusting at least one control parameter of said pulsed light source depending at least on said separation; generating at least one electrical signal for triggering the pulsed light source depending on said at least one control parameter adjusted during the preceding step; and triggering the pulsed light source depending on said at least one triggering electrical signal.Type: GrantFiled: March 30, 2016Date of Patent: March 26, 2019Assignees: HORIBA ABX SAS, UNIVERSITE DE LIMOGES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Vincent Couderc, Roland Grando, Alexis Labruyere, Nelly Rongeat, Denisa Subtirelu
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Publication number: 20190041721Abstract: Some embodiments are directed to a generating device, including a pulse laser source providing primary photons having at least one wavelength, shaping device(s) acting on the primary photons to provide an input beam, a nonlinear crystal, and controller(s) generating, in the nonlinear crystal, at least one electric field that is synchronous with the input beam and suitable for inducing a phase mismatching in the nonlinear crystal through an electro-optical effect, in order to convert the primary photons of the input beam into secondary photons having wavelengths belonging to a supercontinuum.Type: ApplicationFiled: January 20, 2017Publication date: February 7, 2019Inventors: Katarzyna KRUPA, Badr SHALABY, Alexis LABRUYÈRE, Alessandro TONELLO, Vincent COUDERC
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Publication number: 20190027890Abstract: Some embodiments relate to a generation device that includes: a pulsed laser source generating primary photons having at least one wavelength within pulses having time dissymmetry, a forming device(s) controlling the primary photons so as to generate a selective-polarization, focused input beam, and an optical fiber wherein the primary photons induce secondary photons having different wavelengths resulting from a raman conversion cascade and forming a wide-spectrum output beam having substantially constant energy.Type: ApplicationFiled: January 20, 2017Publication date: January 24, 2019Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITÉ DE LIMOGESInventors: Christophe LOUOT, Dominique PAGNOUX, Katarzyna KRUPA, Badr SHALABY, Alexis LABRUYÈRE, Alessandro TONELLO, Vincent COUDERC
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Publication number: 20180090906Abstract: The invention relates to a method for triggering a pulsed light source, wherein it comprises at least one iteration of the following steps: receiving a control signal; determining what is called a separation time between the reception of said control signal and at least one preceding control signal; adjusting at least one control parameter of said pulsed light source depending at least on said separation; generating at least one electrical signal for triggering the pulsed light source depending on said at least one control parameter adjusted during the preceding step; and triggering the pulsed light source depending on said at least one triggering electrical signal.Type: ApplicationFiled: March 30, 2016Publication date: March 29, 2018Inventors: Vincent COUDERC, Roland GRANDO, Alexis LABRUYERE, Nelly RONGEAT, Denisa SUBTIRELU
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Patent number: 9270075Abstract: A supercontinuum source capable of emitting waves between the infrared range and the ultraviolet range, includes a pulsed laser source (12) capable of generating a laser beam and a non-linear microstructured optical fiber (14) capable of receiving the laser beam, in such a way that the supercontinuum source is capable of generating a beam (F?) over a pulse duration (T?), characterized in that the supercontinuum source includes elements for varying the pulse duration.Type: GrantFiled: April 8, 2011Date of Patent: February 23, 2016Assignees: UNIVERSITE DE LIMOGES, LEUKOS, MULTITELInventors: Philippe Leproux, Vincent Couderc, Yves Hernandez, Anthony Bertrand, Marco Andreana, Stephane Hilaire, Philippe Roy
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Patent number: 8867576Abstract: 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: GrantFiled: June 17, 2010Date of Patent: October 21, 2014Assignees: Centre National de la Recherche Scientifique-CNRS, Compagnie Industrielle des Lasers Cilas (CILAS)Inventors: Vincent Couderc, Philippe Paul Leproux, Florent Doutre, Dominique Pagnoux
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Patent number: 8716904Abstract: 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: GrantFiled: April 10, 2009Date of Patent: May 6, 2014Assignees: Universite de Limoges, Centre National de la Recherche Scientifique-CNRS, Institut Franco-Allemand de Recherches de Saint-LouisInventors: Vincent Couderc, Bertrand Vergne, Philippe Leveque
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Patent number: 8699833Abstract: 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: GrantFiled: August 12, 2010Date of Patent: April 15, 2014Assignee: Draka Comteq B.V.Inventors: Gilles Melin, Simon Lempereur, Anne Fleureau, Vincent Couderc, Philippe Laproux, Alexandre Kudlinski
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Patent number: 8630327Abstract: 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: GrantFiled: June 17, 2010Date of Patent: January 14, 2014Assignees: Centre National de la Recherche Scientifique-CNRS, Compagnie Industrielle des Lasers Cilas (CILAS)Inventors: Vincent Couderc, Philippe Paul Leproux, Florent Doutre, Dominique Pagnoux
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Publication number: 20130271765Abstract: According to one aspect, the invention relates to a laser emission device for the spectroscopic analysis of a sample, comprising: a primary laser source (401) emitting a pump beam (I5) and an excitation beam (I2), said two beams being pulsed and having a nanosecond or subnanosecond pulse time; a non-linear optical fibre (406) into which the excitation beam is injected in order to form a probe beam (I4) having a wide spectral band; a device (405) for controlling the time profile of either the pump beam or the excitation beam, allowing compensation of the time spreading of the probe beam generated by the non-linear optical fibre, in order to obtain pump and probe beams having similar pulse times; and means (409) for spatially overlaying of the pump and probe beams for the spectroscopic analysis of the sample.Type: ApplicationFiled: October 18, 2011Publication date: October 17, 2013Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRSInventors: Vincent Couderc, Philippe Leproux, Guillaume Huss, Annalisa De Angelis
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Patent number: 8520203Abstract: 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: GrantFiled: October 10, 2008Date of Patent: August 27, 2013Assignees: C.N.R.S. Centre National de la Recherche Scientifique, University de LimogesInventors: Vincent Couderc, Philippe LeProux, Laurent LeFort, David Bouyge, Christelle Lesvigne-Buy, Aurelian Crunteanu Stanescu
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Publication number: 20130058366Abstract: A supercontinuum source capable of emitting waves between the infrared range and the ultraviolet range, includes a pulsed laser source (12) capable of generating a laser beam and a non-linear microstructured optical fibre (14) capable of receiving the laser beam, in such a way that the supercontinuum source is capable of generating a beam (F?) over a pulse duration (T?), characterized in that the supercontinuum source includes elements for varying the pulse duration.Type: ApplicationFiled: April 8, 2011Publication date: March 7, 2013Applicants: UNIVERSITE DE LIMOGES, MULTITEL, LEUKOSInventors: Philippe Leproux, Vincent Couderc, Yves Hernandez, Anthony Bertrand, Marco Andreana, Stephane Hilaire, Philippe Roy
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Patent number: 8340142Abstract: 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), characterized 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: GrantFiled: May 14, 2008Date of Patent: December 25, 2012Assignees: 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: 8233509Abstract: The invention relates to a device (1) for generating short pulses, said device being characterized in that it comprises: a polarized pulse laser (10, 2, 3) having a polarization direction; a bi-refringent optical fiber (6) having bi-refringence axes, wherein said polarization direction is not co-linear with said bi-refringence axes; an output polarizer (9) provided at the output of said fiber, said polarizer being capable of selecting a polarization at the output of said fiber; wherein said pulse laser in a longitudinally quasi-single mode laser.Type: GrantFiled: November 21, 2007Date of Patent: July 31, 2012Assignee: Centre National de la Recherche Scientifique—CNRSInventors: Paul-Henri Pioger, Bertrand Vergne, Vincent Couderc, Alain Barthelemy