Patents by Inventor Mario L'Heureux

Mario L'Heureux 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: 20190245641
    Abstract: A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. An upstream wavelength analyzer receives upstream light extracted from the optical transmission path and is configured to determine an upstream spectral characteristic of the extracted upstream light. A downstream optical power meter assembly receives downstream light extracted from the optical transmission path and is configured to measure an optical power parameter of a downstream signal. A processing unit is configured to determine, based on the upstream spectral characteristic, at least one pass/fail threshold associated with the measured optical power parameter of the downstream signal.
    Type: Application
    Filed: April 18, 2019
    Publication date: August 8, 2019
    Applicant: EXFO Inc.
    Inventors: Bernard RUCHET, Mario L'HEUREUX, Daniel GARIEPY, Etienne MORIN-DROUIN
  • Patent number: 10371596
    Abstract: There is provided a method and a system for identifying or verifying the fiber arrangement and/or the cable type of multi-fiber array cables (such as MPO cables) which employs an OTDR acquisition device at the near end of the MPO cable, a loopback device at the far end and an array of signatures detectable by the OTDR, either at the far or the near end. The loopback device allows performing bidirectional OTDR measurements with a single OTDR acquisition device (without moving it from one end to the other) and the signature array provides fiber arrangement/cable type identification or verification.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: August 6, 2019
    Assignee: EXFO Inc.
    Inventors: Mario L'Heureux, Stephane Perron, Michel Leclerc
  • Patent number: 10288524
    Abstract: There is provided a system and a test instrument for identifying or verifying the fiber arrangement and/or the cable type of multi-fiber array cables (such as MPO cables) which employs a light source and a polarity detector at the near end of the multi-fiber array cable under test, and a loopback device at the far end. The polarity detector comprises light presence detectors used to detect which one of the optical fibers of the multi-fiber array cable returns light looped back at the far end and thereby determine the fiber arrangement and/or the cable type of the multi-fiber array cable.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: May 14, 2019
    Assignee: EXFO Inc.
    Inventors: Michel Leclerc, Mario L'Heureux, Stephane Perron
  • Patent number: 10270554
    Abstract: A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. The device includes an upstream wavelength analyzer receiving upstream light extracted from the optical transmission path and configured to determine an upstream spectral characteristic of the extracted upstream light. The device also includes a downstream filter assembly receiving downstream light extracted from the optical transmission path and configured to spectrally split the extracted downstream light into a plurality of downstream signals, one of which corresponding to a downstream signal of interest.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 23, 2019
    Assignee: EXFO INC.
    Inventors: Bernard Ruchet, Mario L'Heureux, Daniel Gariepy, Etienne Morin-Drouin
  • Publication number: 20180076890
    Abstract: A device and method for optical power measurement in an optical network supporting upstream and downstream signal propagation along an optical transmission path. The device includes an upstream wavelength analyzer receiving upstream light extracted from the optical transmission path and configured to determine an upstream spectral characteristic of the extracted upstream light. The device also includes a downstream filter assembly receiving downstream light extracted from the optical transmission path and configured to spectrally split the extracted downstream light into a plurality of downstream signals, one of which corresponding to a downstream signal of interest.
    Type: Application
    Filed: November 27, 2017
    Publication date: March 15, 2018
    Inventors: Bernard RUCHET, Mario L'HEUREUX, Daniel GARIEPY, Etienne MORIN-DROUIN
  • Patent number: 9831948
    Abstract: A passive optical network (PON) device and method for optical power measurement along an optical transmission path supporting bidirectional propagation of downstream light and upstream light between two network elements of a PON is provided. The device includes an optical power splitter assembly extracting respective portions of the upstream and downstream light, and an upstream wavelength analyzer determining, from the extracted upstream light, an upstream spectral characteristic of the upstream light. The device also includes a processing unit determining, based on the upstream spectral characteristic, a downstream spectral characteristic of a downstream signal of interest among a plurality of downstream signals of the downstream light, and a downstream filter assembly filtering the extracted downstream light to select a portion of the downstream signal of interest.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: November 28, 2017
    Assignee: EXFO INC.
    Inventors: Bernard Ruchet, Mario L'Heureux, Daniel Gariepy
  • Publication number: 20170234767
    Abstract: There is provided a system and a test instrument for identifying or verifying the fiber arrangement and/or the cable type of multi-fiber array cables (such as MPO cables) which employs a light source and a polarity detector at the near end of the multi-fiber array cable under test, and a loopback device at the far end. The polarity detector comprises light presence detectors used to detect which one of the optical fibers of the multi-fiber array cable returns light looped back at the far end and thereby determine the fiber arrangement and/or the cable type of the multi-fiber array cable.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 17, 2017
    Inventors: Michel Leclerc, Mario L'Heureux, Stephane Perron
  • Publication number: 20170085318
    Abstract: A passive optical network (PON) device and method for optical power measurement along an optical transmission path supporting bidirectional propagation of downstream light and upstream light between two network elements of a PON is provided. The device includes an optical power splitter assembly extracting respective portions of the upstream and downstream light, and an upstream wavelength analyzer determining, from the extracted upstream light, an upstream spectral characteristic of the upstream light. The device also includes a processing unit determining, based on the upstream spectral characteristic, a downstream spectral characteristic of a downstream signal of interest among a plurality of downstream signals of the downstream light, and a downstream filter assembly filtering the extracted downstream light to select a portion of the downstream signal of interest.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 23, 2017
    Inventors: Bernard RUCHET, Mario L'HEUREUX, Daniel GARIEPY
  • Patent number: 9506838
    Abstract: There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: November 29, 2016
    Assignee: EXFO Inc.
    Inventors: Mario L'Heureux, Michel Leclerc, Eric Thomassin, Stephane Perron
  • Publication number: 20160041065
    Abstract: There is provided a method and a system for identifying or verifying the fiber arrangement and/or the cable type of multi-fiber array cables (such as MPO cables) which employs an OTDR acquisition device at the near end of the MPO cable, a loopback device at the far end and an array of signatures detectable by the OTDR, either at the far or the near end. The loopback device allows performing bidirectional OTDR measurements with a single OTDR acquisition device (without moving it from one end to the other) and the signature array provides fiber arrangement/cable type identification or verification.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 11, 2016
    Inventors: Mario L'Heureux, Stephane Perron, Michel Leclerc
  • Publication number: 20150346054
    Abstract: There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link.
    Type: Application
    Filed: August 7, 2015
    Publication date: December 3, 2015
    Inventors: Mario L'Heureux, Michel Leclerc, Eric Thomassin, Stephane Perron
  • Patent number: 9134197
    Abstract: There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: September 15, 2015
    Assignee: EXFO Inc.
    Inventors: Mario L'Heureux, Michel Leclerc, Eric Thomassin, Stephane Perron
  • Publication number: 20140198311
    Abstract: There is provided a bi-directional optical reflectometric method for characterizing an optical fiber link.
    Type: Application
    Filed: August 30, 2013
    Publication date: July 17, 2014
    Applicant: EXFO INC.
    Inventors: Mario L'Heureux, Michel Leclerc, Eric Thomassin, Stephane Perron
  • Patent number: D796522
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 5, 2017
    Assignee: EXFO INC.
    Inventors: Mario L'Heureux, Félix Gaudreault, Benoît Fellice, Jean-François Drolet, Laurence Choquet