Patents by Inventor Philippe Leproux
Philippe Leproux 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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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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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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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: 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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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: 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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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: 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