Patents by Inventor Philippe Bouyer
Philippe Bouyer 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: 11976924Abstract: Disclosed is a multi-axis atom interferometer system, including a source of cold atoms, a laser source generating a first light pulse configured in such a way as to spatially split the source of cold atoms into a first cloud of atoms propagating along a first trajectory along a first axis and a second cloud of atoms propagating along a second trajectory along a second axis, a second light pulse adapted to spatially deflect the first trajectory along the second axis and simultaneously the second trajectory along the first axis towards a first point and a last light pulse adapted to recombine the at least one part of the first cloud of atoms and the at least one part of the second cloud of atoms at the first point, and a detection system measuring an interferometric phase-shift accumulated between the first light pulse and the last light pulse.Type: GrantFiled: October 28, 2019Date of Patent: May 7, 2024Assignees: EXAIL, INSTITUT D'OPTIQUE GRADUATE SCHOOL, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: David Brynle Barrett, Pierrick Cheiney, Philippe Bouyer
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Patent number: 11328829Abstract: Disclosed is an atomic interferometer including a source of atoms, a laser source and a magnetic field generating device, a polarizer, a system for adjusting a detuning between two optical frequencies of the incident laser beam, a two-dimensional diffraction grating arranged in such a way as to receive the incident laser beam and to form by diffraction at least three diffracted beams, a controller configured to select a combination of an optical frequency detuning, a polarization state and a magnetic field, the combination being adapted to select a first pair of laser beams among the pairs of beams formed from the incident laser beam and the diffracted beams, the pair of laser beams being applied in such a way as to interact with the cloud of atoms by multi-photon transitions and to detect an acceleration of the cloud of atoms along a measurement direction.Type: GrantFiled: April 9, 2021Date of Patent: May 10, 2022Assignee: IXBLUEInventors: Pierrick Cheiney, Baptiste Gouraud, David Brynle Barrett, Baptiste Battelier, Philippe Bouyer
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Publication number: 20210389127Abstract: Disclosed is a multi-axis atom interferometer system, including a source of cold atoms, a laser source generating a first light pulse configured in such a way as to spatially split the source of cold atoms into a first cloud of atoms propagating along a first trajectory along a first axis and a second cloud of atoms propagating along a second trajectory along a second axis, a second light pulse adapted to spatially deflect the first trajectory along the second axis and simultaneously the second trajectory along the first axis towards a first point and a last light pulse adapted to recombine the at least one part of the first cloud of atoms and the at least one part of the second cloud of atoms at the first point, and a detection system measuring an interferometric phase-shift accumulated between the first light pulse and the last light pulse.Type: ApplicationFiled: October 28, 2019Publication date: December 16, 2021Inventors: David Brynle BARRETT, Pierrick CHEINEY, Philippe BOUYER
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Patent number: 11175139Abstract: Disclosed is a hybrid inertial measurement system including a cold atom interferometric inertial sensor having a laser source generating a sequence of laser pulses towards a cold atom burst and a conventional inertial sensor attached to the inertial reference frame of the interferometric inertial sensor. The hybrid system includes a signal processing system suitable for receiving an inertial measurement signal from the conventional inertial sensor and for generating in real time a non-linear frequency modulation signal, the feedback loop electronic system being configured to modulate in real time the central optical frequency of the laser according to the modulation signal, such that the cold atom interferometric inertial sensor generates a first hybrid inertial measurement signal by atomic interferometry corrected for the relative movements of the inertial reference frame.Type: GrantFiled: February 23, 2018Date of Patent: November 16, 2021Assignees: IXBLUE, INSTITUT D'OPTIQUE GRADUATE SCHOOL, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Brynle Barrett, Baptiste Battelier, Philippe Bouyer, Fabien Napolitano
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Publication number: 20210319925Abstract: Disclosed is an atomic interferometer including a source of atoms, a laser source and a magnetic field generating device, a polarizer, a system for adjusting a detuning between two optical frequencies of the incident laser beam, a two-dimensional diffraction grating arranged in such a way as to receive the incident laser beam and to form by diffraction at least three diffracted beams, a controller configured to select a combination of an optical frequency detuning, a polarization state and a magnetic field, the combination being adapted to select a first pair of laser beams among the pairs of beams formed from the incident laser beam and the diffracted beams, the pair of laser beams being applied in such a way as to interact with the cloud of atoms by multi-photon transitions and to detect an acceleration of the cloud of atoms along a measurement direction.Type: ApplicationFiled: April 9, 2021Publication date: October 14, 2021Inventors: Pierrick CHEINEY, Baptiste GOURAUD, David Brynle BARRETT, Baptiste BATTELIER, Philippe BOUYER
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Publication number: 20190376790Abstract: Disclosed is a hybrid inertial measurement system including a cold atom interferometric inertial sensor having a laser source generating a sequence of laser pulses towards a cold atom burst and a conventional inertial sensor attached to the inertial reference frame of the interferometric inertial sensor. The hybrid system includes a signal processing system suitable for receiving an inertial measurement signal from the conventional inertial sensor and for generating in real time a non-linear frequency modulation signal, the feedback loop electronic system being configured to modulate in real time the central optical frequency of the laser according to the modulation signal, such that the cold atom interferometric inertial sensor generates a first hybrid inertial measurement signal by atomic interferometry corrected for the relative movements of the inertial reference frame.Type: ApplicationFiled: February 23, 2018Publication date: December 12, 2019Inventors: Brynle BARRETT, Baptiste BATTELIER, Philippe BOUYER, Fabien NAPOLITANO
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Patent number: 9134450Abstract: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.Type: GrantFiled: January 7, 2013Date of Patent: September 15, 2015Assignee: MUQUANSInventors: Bruno Desruelle, Philippe Bouyer, Arnaud Landragin
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Publication number: 20140190254Abstract: A cold atom gravity gradiometer system includes a laser source that generates a laser beam that propagates along a propagation direction. The system further includes a reflector that reflects a portion of the laser beam and transmits another portion of the laser beam (the transmitted portion). A second reflector spatially separated from the first reflector along the propagation direction reflects the transmitted portion of the laser beam.Type: ApplicationFiled: January 7, 2013Publication date: July 10, 2014Inventors: Philippe Bouyer, Arnaud Landragin, Bruno Desruelle
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Patent number: 8373112Abstract: The disclosure relates to a cold atom interferometry sensor that includes: a source of atoms; a dual-frequency laser capable of generating a first Raman dual-frequency laser beam; a reflector arranged so as to reflect the first Raman dual-frequency laser beam in order to generate a second Raman dual-frequency laser beam, the first laser beam and the second laser beam propagating in different directions in order to obtain atomic interference fringes from the emission of cold atoms obtained from the atom source; characterized in that the reflector is further arranged so as to enable multiple reflections of the first beam on surfaces of the reflector, so that the first beam and the multiple reflections thereof allow the capture of atoms from the atom source in order to obtain the cold atoms.Type: GrantFiled: March 11, 2009Date of Patent: February 12, 2013Assignees: CNRS, Observatoire de ParisInventors: Philippe Bouyer, Arnaud Landragin
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Patent number: 8288712Abstract: A guided coherent atom source (1) includes elements for generating neutral atoms in a gaseous state (2), elements for cooling the atoms gas (3), elements for generating a magnetic field (4), including an electro-magnetic micro-chip (6) deposited on a surface (18) of a substrate (14), and capable of condensing the atoms in a magnetic trap, elements for generating an electro-magnetic RF field capable of extracting the condensed atoms, optical elements (10) for emitting and directing an optical coherent beam (12) toward the condensed atoms able to guide the condensed atoms, characterized in that the optical elements (10) and the electro-magnetic micro-chip (6) are integrated onto the same substrate (14). An atomic interferometer using such a source is also disclosed.Type: GrantFiled: March 18, 2009Date of Patent: October 16, 2012Assignees: Ixsea, Institut d'Optique Graduate School, Observatoire de ParisInventors: Philippe Bouyer, Vincent Josse, William Guerin, Juliette Billy, Arnaud Landragin
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Publication number: 20110073753Abstract: The disclosure relates to a cold atom interferometry sensor that includes: a source of atoms; a dual-frequency laser capable of generating a first Raman dual-frequency laser beam; a reflector arranged so as to reflect the first Raman dual-frequency laser beam in order to generate a second Raman dual-frequency laser beam, the first laser beam and the second laser beam propagating in different directions in order to obtain atomic interference fringes from the emission of cold atoms obtained from the atom source; characterized in that the reflector is further arranged so as to enable multiple reflections of the first beam on surfaces of the reflector, so that the first beam and the multiple reflections thereof allow the capture of atoms from the atom source in order to obtain the cold atoms.Type: ApplicationFiled: March 11, 2009Publication date: March 31, 2011Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), OBSERVATOIRE DEPARISInventors: Philippe Bouyer, Arnaud Landragin
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Publication number: 20090242743Abstract: A guided coherent atom source (1) includes elements for generating neutral atoms in a gaseous state (2), elements for cooling the atoms gas (3), elements for generating a magnetic field (4), including an electro-magnetic micro-chip (6) deposited on a surface (18) of a substrate (14), and capable of condensing the atoms in a magnetic trap, elements for generating an electro-magnetic RF field capable of extracting the condensed atoms, optical elements (10) for emitting and directing an optical coherent beam (12) toward the condensed atoms able to guide the condensed atoms, characterized in that the optical elements (10) and the electro-magnetic micro-chip (6) are integrated onto the same substrate (14). An atomic interferometer using such a source is also disclosed.Type: ApplicationFiled: March 18, 2009Publication date: October 1, 2009Applicants: IXSEA, INSTITUT D'OPTIQUE GRADUATE SCHOOL, OBSERVATOIRE DE PARISInventors: Philippe BOUYER, Vincent JOSSE, William GUERIN, Juliette BILLY, Arnaud LANDRAGIN
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Patent number: 6548809Abstract: An electromagnetic device for producing cold neutral atoms having a ferromagnetic structure with four poles disposed in the same plane XOY excited by main coils (the quadrupole) supplying the main excitation, and two additional poles (the dipole) oriented along an axis Z and perpendicular to the plane of said four poles, the poles being magnetically coupled by one or more yokes.Type: GrantFiled: March 2, 2001Date of Patent: April 15, 2003Assignee: Etat Francais Represente par Letdelegue General pour l'ArmementInventors: Philippe Bouyer, Alain Aspect, Michel Lecrivain, Bruno Desruelle, Vincent Boyer
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Publication number: 20010042824Abstract: An electromagnetic device for producing cold neutral atoms having a ferromagnetic structure with four poles disposed in the same plane XOY excited by main coils (the quadrupole) supplying the main excitation, and two additional poles (the dipole) oriented along an axis Z and perpendicular to the plane of said four poles, the poles being magnetically coupled by one or more yokes.Type: ApplicationFiled: March 2, 2001Publication date: November 22, 2001Applicant: ETAT FRANCAIS represente par le Delegue General pour L'ArmementInventors: Philippe Bouyer, Alain Aspect, Michel Lecrivain, Bruno Desruelle, Vincent Boyer