Patents by Inventor Julien Carrier

Julien Carrier 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).

  • Writing of high mechanical strength fiber bragg gratings using ultrafast pulses and a phase mask
    Patent number: 10845533
    Abstract: An optical fiber having a Bragg grating along a non-photosensitized grating region thereof and a pristine polymer coating around the grating region with the Bragg grating having been written through the polymer coating has a mechanical resistance that is greater than 20% of the mechanical resistance of an identical grating-free optical fiber.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: November 24, 2020
    Assignee: UNIVERSITÉ LAVAL
    Inventors: Martin Bernier, Réal Vallée, François Trépanier, Julien Carrier
  • WRITING OF HIGH MECHANICAL STRENGTH FIBER BRAGG GRATINGS USING ULTRAFAST PULSES AND A PHASE MASK
    Publication number: 20190137685
    Abstract: An optical fiber having a Bragg grating along a non-photosensitized grating region thereof and a pristine polymer coating around the grating region with the Bragg grating having been written through the polymer coating has a mechanical resistance that is greater than 20% of the mechanical resistance of an identical grating-free optical fiber.
    Type: Application
    Filed: October 26, 2018
    Publication date: May 9, 2019
    Inventors: Martin Bernier, Réal Vallée, François Trépanier, Julien Carrier
  • Writing of high mechanical strength fiber Bragg gratings through the polymer coating of an optical fiber
    Patent number: 10132994
    Abstract: Methods and systems for writing a Bragg grating along a grating region of an optical fiber through a polymer coating of the optical fiber are provided. A light beam of ultrafast optical pulses is impinged on the grating region, the ultrafast optical pulses being characterized by writing wavelength at the grating region to which the polymer coating is substantially transparent The light beam is diffracted through a phase mask so as to form an interference pattern defining the Bragg grating at the grating region of the optical fiber. The light beam is also focussed such that the intensity of the optical pulses is below a damage threshold within the polymer coating, and above an FBG inscription threshold within the grating region of the fiber. Optical fiber having Bragg gratings and improved mechanical are also provided.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: November 20, 2018
    Assignee: Universite Laval
    Inventors: Martin Bernier, Réal Vallée, François Trépanier, Julien Carrier
  • WRITING OF HIGH MECHANICAL STRENGTH FIBER BRAGG GRATINGS USING ULTRAFAST PULSES AND A PHASE MASK
    Publication number: 20170031090
    Abstract: Methods and systems for writing a Bragg grating along a grating region of an optical fiber through a polymer coating of the optical fiber are provided. A light beam of ultrafast optical pulses is impinged on the grating region, the ultrafast optical pulses being characterised by writing wavelength at the grating region to which the polymer coating is substantially transparent The light beam is diffracted through a phase mask so as to form an interference pattern defining the Bragg grating at the grating region of the optical fiber. The light beam is also focussed such that the intensity of the optical pulses is below a damage threshold within the polymer coating, and above an FBG inscription threshold within the grating region of the fiber. Optical fiber having Bragg gratings and improved mechanical are also provided.
    Type: Application
    Filed: April 2, 2015
    Publication date: February 2, 2017
    Inventors: Martin Bernier, Réal Vallée, François Trépanier, Julien Carrier