Patents by Inventor Alain Mailloux

Alain Mailloux 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).

  • Publication number: 20220283540
    Abstract: A method of manufacturing a Volume Bragg Grating (VBG) is provided, comprising providing a cylindrical bulk medium made of a transparent glass material and having a central axis along a longitudinal direction, and inscribing an interference pattern in the cylindrical bulk medium. The interference pattern has a plurality of grating fringe elements distributed along a line parallel to the central axis. The method further includes rotating the cylindrical bulk medium about the central axis during said inscribing, thereby azimuthally extending the grating fringes elements. There is further provided a VBG manufactured according to such a method, the use of such a VBG in a CPA system of cladding-pumped fiber laser.
    Type: Application
    Filed: March 8, 2022
    Publication date: September 8, 2022
    Inventors: François TREPANIER, Sylvain BOUDREAU, Alain MAILLOUX, Guillaume BROCHU
  • Patent number: 7123795
    Abstract: A method for aligning the spectral responses of two comb-like optical filters is provided. This method does not necessitate the use of spectrally-resolved equipment, as it uses the optical power correlation profile of a broadband light signal representative of the combined spectral responses of the two filters. In one embodiment, the power correlation profile is compared to a pre-stored profile. A tuning method for tuning two filters using this alignment method is also provided. The two filters are first relaxed to an unstretched position, and the second filter is stretched and aligned with the first. The first filter is also stretched and aligned with the other. Both filters are then stretched at a calibrated value.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: October 17, 2006
    Assignee: Teraxion Inc.
    Inventors: Simon Savard, Richard L. Lachance, Alain Mailloux
  • Publication number: 20060110105
    Abstract: A method for aligning the spectral responses of two comb-like optical filters is provided. This method does not necessitate the use of spectrally-resolved equipment, as it uses the optical power correlation profile of a broadband light signal representative of the combined spectral responses of the two filters. In one embodiment, the power correlation profile is compared to a pre-stored profile. A tuning method for tuning two filters using this alignment method is also provided. The two filters are first relaxed to an unstretched position, and the second filter is stretched and aligned with the first. The first filter is also stretched and aligned with the other. Both filters are then stretched at a calibrated value.
    Type: Application
    Filed: October 25, 2005
    Publication date: May 25, 2006
    Applicant: Teraxion Inc.
    Inventors: Simon Savard, Richard Lachance, Alain Mailloux
  • Patent number: 6501883
    Abstract: A method and an apparatus for recording optical gratings in a photosensitive medium are provided. The invention uses a phase mask in combination with a scanning of the recording light beam. The phase mask, or alternatively the photosensitive medium, is translated along a direction parallel to the scanning of the light beam, so that the period of the recorded grating may be locally adjusted. To ensure a proper recording efficiency over a large range, an appropriately selected wavefront curvature is provided in the light beam. The method of the invention is particularly advantageous for the recording of superimposed grating components in a photosensitive medium.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: December 31, 2002
    Assignee: Teraxion Inc.
    Inventors: Yves Painchaud, Alain Mailloux, Hélène Chotard
  • Patent number: 6332093
    Abstract: A scanning module for imaging through scattering media is provided. The scanning module image through scattering media while alleviating adverse effects of the weak transmission through highly scattering media. The injection of photons is optimized so that the overall transmission is increased compared to the conventional art. Cross-talk effects in a multi-port geometry are eliminated thereby increasing parallelism.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: December 18, 2001
    Assignee: Art Recherches et Technologies Avancees Inc./Art Advanced Research Technologies, Inc.
    Inventors: Yves Painchaud, Alain Mailloux