Patents by Inventor Julien FAVREAU

Julien FAVREAU 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 coupler integrated on a substrate and comprising three elements
    Patent number: 9547137
    Abstract: An optical coupler integrated on a substrate, that will optically couple a laser and a waveguide and including an external element, including two arms separated by a notch, this notch being delimited laterally by two first walls at a spacing that reduces towards the bottom of the notch; a central element, located in the notch delimited laterally by two second walls and with a first region in which the two second walls are in direct contact with two first walls as far as the bottom of the notch; and an intermediate element, extending between the external element and the central element. The optical index of the central element is greater than the optical index of the intermediate element, itself greater than the optical index of the arms of the external element. Such an optical coupler provides efficient coupling between a laser emitting in the mid-infrared and a waveguide integrated on a substrate.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: January 17, 2017
    Assignee: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Julien Favreau, Salim Boutami, Mickael Brun
  • OPTICAL COUPLER INTEGRATED ON A SUBSTRATE AND COMPRISING THREE ELEMENTS
    Publication number: 20160091676
    Abstract: An optical coupler integrated on a substrate, that will optically couple a laser and a waveguide and including an external element, including two arms separated by a notch, this notch being delimited laterally by two first walls at a spacing that reduces towards the bottom of the notch; a central element, located in the notch delimited laterally by two second walls and with a first region in which the two second walls are in direct contact with two first walls as far as the bottom of the notch; and an intermediate element, extending between the external element and the central element. The optical index of the central element is greater than the optical index of the intermediate element, itself greater than the optical index of the arms of the external element. Such an optical coupler provides efficient coupling between a laser emitting in the mid-infrared and a waveguide integrated on a substrate.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 31, 2016
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Julien FAVREAU, Salim Boutami, Mickael Brun