Patents by Inventor François Brunet
François Brunet 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).
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Patent number: 8265106Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: GrantFiled: September 30, 2010Date of Patent: September 11, 2012Assignee: ESI-Pyrophotonics Lasers, Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Patent number: 8059334Abstract: An optical fiber amplifier system is described and comprises a first optical fiber having a doped core with a first gain spectral profile upon being pumped. The first optical fiber is adapted to receive an optical signal from a light source. A second optical fiber has a doped core with a second gain spectral profile upon being pumped. The second optical fiber is optically coupled to the first optical fiber. A continuous wave pump light system is optically coupled to the fibers so as to store energy in the fibers for a subsequent amplification of the optical signal from the light source. An overlapping configuration is provided between the first gain spectral profile and the second gain spectral profile so as to reduce energy depletion in one of the optical fibers from amplification of spontaneous emission generated by another of the optical fibers.Type: GrantFiled: January 16, 2009Date of Patent: November 15, 2011Assignee: Institut National d'OptiqueInventors: François Brunet, Pascal Deladurantaye, Yves Taillon
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Publication number: 20110243159Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: ApplicationFiled: September 30, 2010Publication date: October 6, 2011Applicant: PyroPhotonics Lasers Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Patent number: 7817682Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: GrantFiled: October 15, 2008Date of Patent: October 19, 2010Assignee: PyroPhotonics Lasers Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Patent number: 7773294Abstract: There is provided a parabolic pulse amplifier for amplifying a pulse light signal. The amplifier comprises an ytterbium-doped amplification waveguide pumped using a pump source with a pump central wavelength substantially offset from the absorption transition peak wavelength. The pump wavelength is selected such that the absorption coefficient of pump light and the gain coefficient of the signal are substantially equal in the amplification waveguide such that the amplification gain is distributed substantially uniformly along the amplification waveguide.Type: GrantFiled: August 13, 2007Date of Patent: August 10, 2010Assignee: Institut National D'OptiqueInventors: François Brunet, Louis Desbiens
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Patent number: 7747284Abstract: The bandwidth for transmission and reception in a bi-directional radio relay link with two simultaneous broadcasts and receptions is reduced by half. Each terminal device comprises a first broadcaster for broadcasting a first data signal, via a first antenna, in a first used frequency band identical to that in which a first receiver receives a second data signal via a second antenna. A second receiver receives, via the first antenna, a third data signal with a second frequency band and a second broadcaster broadcasts, via a second antenna, a fourth data signal with the second frequency band.Type: GrantFiled: March 31, 2004Date of Patent: June 29, 2010Assignee: France TelecomInventors: Francois Brunet, Yvon Dutertre, Alain Leveque
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Publication number: 20090147808Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: ApplicationFiled: October 15, 2008Publication date: June 11, 2009Applicant: PyroPhotonics Lasers Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Publication number: 20090122392Abstract: An optical fiber amplifier system is described and comprises a first optical fiber having a doped core with a first gain spectral profile upon being pumped. The first optical fiber is adapted to receive an optical signal from a light source. A second optical fiber has a doped core with a second gain spectral profile upon being pumped. The second optical fiber is optically coupled to the first optical fiber. A continuous wave pump light system is optically coupled to the fibers so as to store energy in the fibers for a subsequent amplification of the optical signal from the light source. An overlapping configuration is provided between the first gain spectral profile and the second gain spectral profile so as to reduce energy depletion in one of the optical fibers from amplification of spontaneous emission generated by another of the optical fibers.Type: ApplicationFiled: January 16, 2009Publication date: May 14, 2009Inventors: FRANCOIS BRUNET, Pascal Deladurantaye, Yves Taillon
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Publication number: 20090046352Abstract: There is provided a parabolic pulse amplifier for amplifying a pulse light signal. The amplifier comprises an ytterbium-doped amplification waveguide pumped using a pump source with a pump central wavelength substantially offset from the absorption transition peak wavelength. The pump wavelength is selected such that the absorption coefficient of pump light and the gain coefficient of the signal are substantially equal in the amplification waveguide such that the amplification gain is distributed substantially uniformly along the amplification waveguide.Type: ApplicationFiled: August 13, 2007Publication date: February 19, 2009Applicant: Institut National D'OptiqueInventors: Francois Brunet, Louis Desbiens
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Patent number: 7443893Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: GrantFiled: April 18, 2007Date of Patent: October 28, 2008Assignee: PyroPhotonics Lasers Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Publication number: 20080181266Abstract: A pulsed laser light source for producing amplified light pulses is provided. It includes a three-port optical circulator connected to a first, second, and third waveguide branch, a seed module for generating a pulsed light and propagating the light along the first waveguide branch to the first port of the optical circulator and out the second port to the second waveguide branch, a reflector in the second waveguide branch for reflecting the light back through the second port of the optical circulator for circulation out the third port to the third waveguide branch, and a light output provided in the third waveguide branch for outputting the amplified light pulses. An amplifier is disposed in the second waveguide branch between the optical circulator and the reflector for amplifying the light and an optical modulator operable for modulating the pulsed light is disposed in the third waveguide branch.Type: ApplicationFiled: January 26, 2007Publication date: July 31, 2008Applicant: INSTITUT NATIONAL D'OPTIQUEInventors: Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Publication number: 20070268942Abstract: A tunable pulsed laser source comprising a seed source adapted to generate a seed signal and an optical circulator. The optical circulator includes a first port coupled to the seed source, a second port, and a third port. The laser source also includes an amplitude modulator characterized by a first side and a second side. The first side is coupled to the second port of the optical circulator. The laser source further includes a first optical amplifier characterized by an input end and a reflective end including a spectral-domain reflectance filter. The input end is coupled to the second side of the amplitude modulator. Moreover, the laser source includes a second optical amplifier coupled to the third port of the optical circulator.Type: ApplicationFiled: April 18, 2007Publication date: November 22, 2007Applicant: PyroPhotonics Lasers Inc.Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
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Publication number: 20060274404Abstract: An optical fiber amplifier system is described and comprises a first optical fiber having a doped core with a first gain spectral profile upon being pumped. The first optical fiber is adapted to receive an optical signal from a light source. A second optical fiber has a doped core with a second gain spectral profile upon being pumped. The second optical fiber is optically coupled to the first optical fiber. A pump light system is optically coupled to the fibers so as to store energy in the fibers for a subsequent amplification of the optical signal from the light source. An overlapping configuration is provided between the first gain spectral profile and the second gain spectral profile so as to reduce energy depletion in one of the optical fibers from amplification of spontaneous emission generated by another of the optical fibers.Type: ApplicationFiled: June 6, 2005Publication date: December 7, 2006Inventors: Francois Brunet, Pascal Deladurantaye, Yves Taillon
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Publication number: 20060203751Abstract: The bandwidth for transmission and reception in a bi-directional radio relay link with two simultaneous broadcasts and receptions is reduced by half. Each terminal device comprises a first broadcaster for broadcasting a first data signal, via a first antenna, in a first used frequency band identical to that in which a first receiver receives a second data signal via a second antenna. A second receiver receives, via the first antenna, a third data signal with a second frequency band and a second broadcaster broadcasts, via a second antenna, a fourth data signal with the second frequency band.Type: ApplicationFiled: March 31, 2004Publication date: September 14, 2006Inventors: Yvon Dutertre, Francois Brunet, Alain Leveque