Patents by Inventor Francois Daniel Balembois

Francois Daniel Balembois 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 amplifier system for pulsed laser based on a guiding gain medium and pulsed laser comprising same
    Patent number: 8625192
    Abstract: An optical amplifier for pulsed laser with short or ultra-short and energetic pulses includes an optical pumping source for generating a pump wave, an elongate amplifying medium including an input interface for receiving an optical signal to be amplified, the medium being able to amplify the optical signal propagating along the amplifying medium and to extract an amplified signal and an optical system for coupling the pump wave in the amplifying medium so as to pump the amplifying medium longitudinally. The amplifying medium has a minimum transverse dimension ?3 and the optical system focuses the pump wave inside the gain medium, the focused pump wave having a transverse dimension ?6 which is smaller than the dimension ?3 of the medium and a smaller numerical aperture than the numerical aperture of the medium, so that the pump wave propagates freely over a part of the amplifying medium and then in a confined manner over a part of the amplifying medium.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: January 7, 2014
    Assignees: Fibercryst, Centre National de la Recherche Scientifique, Universite Claude Bernard Lyon 1
    Inventors: Francois Daniel Balembois, Patrick Marcel Georges, Damien Sangla, Julien Didierjean
  • OPTICAL AMPLIFIER SYSTEM FOR PULSED LASER BASED ON A GUIDING GAIN MEDIUM AND PULSED LASER COMPRISING SAME
    Publication number: 20110200063
    Abstract: An optical amplifier for pulsed laser with short or ultra-short and energetic pulses includes an optical pumping source for generating a pump wave, an elongate amplifying medium including an input interface for receiving an optical signal to be amplified, the medium being able to amplify the optical signal propagating along the amplifying medium and to extract an amplified signal and an optical system for coupling the pump wave in the amplifying medium so as to pump the amplifying medium longitudinally. The amplifying medium has a minimum transverse dimension ?3 and the optical system focuses the pump wave inside the gain medium, the focused pump wave having a transverse dimension ?6 which is smaller than the dimension ?3 of the medium and a smaller numerical aperture than the numerical aperture of the medium, so that the pump wave propagates freely over a part of the amplifying medium and then in a confined manner over a part of the amplifying medium.
    Type: Application
    Filed: October 15, 2009
    Publication date: August 18, 2011
    Applicant: FIBERCRYST
    Inventors: Francois Daniel Balembois, Patrick Marcel Georges, Damien Sangla, Julien Didierjean