Patents by Inventor Alban Le Liepvre

Alban Le Liepvre 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).

  • Optical device with integrated reflector(s) comprising a loop reflector integrating a mach-zehnder interferometer
    Patent number: 9927676
    Abstract: An optical device includes a substrate on which is defined at least one primary waveguide (31, 32) defining a loop reflector, that has first and second directional couplers, and a Mach-Zehnder interferometer intercalated between the first and second directional couplers and arranged for compensating a wavelength dependence of the first and second directional couplers.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: March 27, 2018
    Assignees: Commissariat à l'Energie Atomique et aux Énergies Alternatives, Thales
    Inventor: Alban le Liepvre
  • Method for controlling the wavelength of a laser source
    Patent number: 9525492
    Abstract: The present invention concerns a method for controlling the emitting wavelength of a laser source (10) for a passive optical network, the laser source (10) comprising: a first Bragg mirror (12), a second Bragg mirror (14), a cavity (16) delimited by both Bragg mirrors (12, 14), the cavity (16) comprising an optical filter (18) and an active medium (20), the method comprising the steps of: measuring the temperature of the active medium (20), setting the temperature of the optical filter (18) in accordance with the measured temperature of the active medium (20), the temperature of the optical filter (18) being higher than the measured temperature.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 20, 2016
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Guang-Hua Duan, Romain Brenot, Alban Le Liepvre, Bruno Mourey
  • Optical Device with Integrated Reflector(s) Comprising a Loop Reflector Integrating a Mach-Zehnder Interferometer
    Publication number: 20160170286
    Abstract: An optical device includes a substrate on which is defined at least one primary waveguide (31, 32) defining a loop reflector, that has first and second directional couplers, and a Mach-Zehnder interferometer intercalated between the first and second directional couplers and arranged for compensating a wavelength dependence of the first and second directional couplers.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 16, 2016
    Inventor: Alban le Liepvre
  • Polarization splitting optical coupler having an interposed guide segment extending between first and second coplanar waveguides
    Patent number: 9134482
    Abstract: A coupler/splitter including two neighboring coplanar waveguide portions extending in a same direction, the first portion having a constant cross-section, the second portion having a variable cross-section so that the effective index of the second waveguide portion varies, in the upstream-to-downstream direction, from a first lower value to a second value higher than the effective index of the first portion, in adiabatic coupling conditions.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: September 15, 2015
    Assignee: Commissariat à l'énergie atmoique aux énergies alternatives
    Inventors: Badhise Ben Bakir, Antoine Descos, Alban Le Liepvre, Marco Lamponi, Guilhem De Valicourt, Guang-Hua Duan
  • METHOD FOR CONTROLLING THE WAVELENGTH OF A LASER SOURCE
    Publication number: 20150236793
    Abstract: The present invention concerns a method for controlling the emitting wavelength of a laser source (10) for a passive optical network, the laser source (10) comprising: a first Bragg mirror (12), a second Bragg mirror (14), a cavity (16) delimited by both Bragg mirrors (12, 14), the cavity (16) comprising an optical filter (18) and an active medium (20), the method comprising the steps of: measuring the temperature of the active medium (20), setting the temperature of the optical filter (18) in accordance with the measured temperature of the active medium (20), the temperature of the optical filter (18) being higher than the measured temperature.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 20, 2015
    Inventors: Guang-Hua DUAN, Romain BRENOT, Alban LE LIEPVRE, Bruno MOUREY
  • POLARIZATION SPLITTING OPTICAL COUPLER
    Publication number: 20130343695
    Abstract: A coupler/splitter including two neighboring coplanar waveguide portions extending in a same direction, the first portion having a constant cross-section, the second portion having a variable cross-section so that the effective index of the second waveguide portion varies, in the upstream-to-downstream direction, from a first lower value to a second value higher than the effective index of the first portion, in adiabatic coupling conditions.
    Type: Application
    Filed: May 14, 2013
    Publication date: December 26, 2013
    Applicant: Commissariat a l'energie atomique et aux energies Alternatives
    Inventors: Badhise Ben Bakir, Antoine Descos, Alban Le Liepvre, Marco Lamponi, Guilhem De Valicourt, Guang-Hua Duan