Patents by Inventor Sebastien Fevrier
Sebastien Fevrier 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).
-
Publication number: 20190173256Abstract: A femtosecond laser source includes an injection laser oscillator with an optical fiber doped with a given material, suitable for delivering, via an output optical fiber, a first picosecond pulse, at a first wavelength ?1; a power amplifier with an amplifying optical fiber for producing, from the first pulse, a second pulse at the first wavelength, with an energy that is amplified relative to the first pulse, the amplifying optical fiber being doped with the same material as the optical fiber of the injection oscillator and having a length less than or equal to the distance from the point of soliton compression and greater than the distance from which the amplifying optical fiber operates in non-linear mode; a fiber with a frequency shift suitable for receiving the second pulse and generating, by Raman self-shifting, a fundamental soliton at a second wavelength ?2 that is strictly greater than the first wavelength ?1.Type: ApplicationFiled: July 25, 2017Publication date: June 6, 2019Inventors: Sébastien FEVRIER, Leonid KOTOV, Ammar HIDEUR
-
Patent number: 9590381Abstract: The invention relates to a laser oscillator comprising an amplifying optical fiber (MA) inserted in a resonant cavity so as to act as an active medium, and pumping means (DL, CP) causing a population inversion in said amplifying optical fiber, characterized in that said amplifying optical fiber comprises at least two cores (C1, C2) optically coupled to each other in a common cladding (G), and in that the shapes, sizes, refractive indices and the relative arrangement of said cores are chosen so that super-modes are supported, at least one (SMI) of which super-modes has, in an emission spectral band of said laser oscillator, a normal chromatic dispersion.Type: GrantFiled: April 4, 2012Date of Patent: March 7, 2017Assignees: Centre National de la Recherche Scientifique, Universite de Rouen, Universite de LimogesInventors: Ammar Hideur, Caroline Lecaplain, Sébastien Fevrier, Philippe Roy
-
Publication number: 20160028205Abstract: The invention relates to a laser oscillator comprising an amplifying optical fibre (MA) inserted in a resonant cavity so as to act as an active medium, and pumping means (DL, CP) causing a population inversion in said amplifying optical fibre, characterized in that said amplifying optical fibre comprises at least two cores (C1, C2) optically coupled to each other in a common cladding (G), and in that the shapes, sizes, refractive indices and the relative arrangement of said cores are chosen so that super-modes are supported, at least one (SMI) of which super-modes has, in an emission spectral band of said laser oscillator, a normal chromatic dispersion.Type: ApplicationFiled: April 4, 2012Publication date: January 28, 2016Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LIMOGES, UNIVERSITE DE ROUENInventors: Ammar Hideur, Caroline Lecaplain, Sébastien Fevrier, Philippe Roy
-
Patent number: 8787721Abstract: Device for the emission or amplification of a signal, comprising an optical fiber (1) having a solid core (2) of refractive index nc, made of a silica glass doped with a rare earth, such as erbium, ytterbium or neodymium, said core being surrounded by an optical cladding (3, 4, 5, 6, 7, 8) comprising at least a pair of silica layers composed of a first, inner layer (3), having a refractive index greater than the refractive index nc of the core (2), covered by a second, outer layer (4). The optical fiber (1) comprises several pairs of silica layers (3, 4; 5, 6; 7, 8) around the core (2), each pair comprising an inner layer (3, 5, 7) of refractive index ni and an outer layer (4, 6, 8) of refractive index ne, the refractive index ne of the outer layer being lower that the refractive index ni of the inner layer of the same pair.Type: GrantFiled: November 7, 2008Date of Patent: July 22, 2014Assignee: Alcatel LucentInventors: Christian Simonneau, Ekaterina Burov, Sébastien Fevrier
-
Publication number: 20110033162Abstract: Device for the emission or amplification of a signal, comprising an optical fibre (1) having a solid core (2) of refractive index nc, made of a silica glass doped with a rare earth, such as erbium, ytterbium or neodymium, said core being surrounded by an optical cladding (3, 4, 5, 6, 7, 8) comprising at least a pair of silica layers composed of a first, inner layer (3), having a refractive index greater than the refractive index nc of the core (2), covered by a second, outer layer (4). The optical fibre (1) comprises several pairs of silica layers (3, 4; 5, 6; 7, 8) around the core (2), each pair comprising an inner layer (3, 5, 7) of refractive index ni and an outer layer (4, 6, 8) of refractive index ne, the refractive index ne of the outer layer being lower that the refractive index ni of the inner layer of the same pair.Type: ApplicationFiled: November 7, 2008Publication date: February 10, 2011Inventors: Christian Simonneau, Ekaterina Burov, Sébastien Fevrier
-
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
-
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
-
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
-
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
-
Patent number: 7197219Abstract: An optical module for chromatic dispersion compensation comprises an optical fiber wound so as to present a variable radius of curvature. The fiber has an index profile such that it has, for the main propagation mode, a negative dispersion value having a minimum at a given wavelength in a given spectral band. The value and the spectral position of the dispersion minimum vary with the radius of curvature of the fiber. The module allows the introduction of a large chromatic dispersion compensation value overall of a given spectral band, as well as compensation corrections for specific wavelengths inside the given spectral band.Type: GrantFiled: November 17, 2004Date of Patent: March 27, 2007Assignee: Draka Comteq B.V.Inventors: Lionel Provost, Pierre Sansonetti, Christine Moreau, Laurent Gasca, Jean-Marc Blondy, Jean-Louis Auguste, Sebastien Fevrier, Frederic Gerome
-
Publication number: 20050254762Abstract: An optical module for chromatic dispersion compensation comprises an optical fiber wound so as to present a variable radius of curvature. The fiber has an index profile such that it has, for the main propagation mode, a negative dispersion value having a minimum at a given wavelength in a given spectral band. The value and the spectral position of the dispersion minimum vary with the radius of curvature of the fiber. The module allows the introduction of a large chromatic dispersion compensation value overall of a given spectral band, as well as compensation corrections for specific wavelengths inside the given spectral band.Type: ApplicationFiled: November 17, 2004Publication date: November 17, 2005Inventors: Lionel Provost, Pierre Sansonetti, Christine Moreau, Laurent Gasca, Jean-Marc Blondy, Jean-Louis Auguste, Sebastien Fevrier, Frederic Gerome