Patents Assigned to ESI-PyroPhotonics Lasers, Inc.
  • Patent number: 8964801
    Abstract: A laser system includes an injection laser source having an output and operable to provide a laser output characterized by a first wavelength, a first linewidth, an output power. The laser system also includes a tunable pulsed source characterized by a gain bandwidth. The tunable pulsed source is operable to provide an output signal having an average power. The output signal includes a plurality of optical pulses. Each of the plurality of optical pulses is characterized by a second wavelength, a second linewidth, and a peak power. The laser system further includes an optical combiner having a first port coupled to the output of the injection laser source, a second port coupled to the tunable pulsed source, and a third port.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 24, 2015
    Assignee: ESI-Pyrophotonics Lasers, Inc.
    Inventors: Benoit Reid, Tullio Panarello, Stephane Caplette
  • Patent number: 8958705
    Abstract: A method of operating an optical amplifier includes determining a gain of the optical amplifier and providing a modulator drive signal to an optical signal source. The modulator drive signal is a function of the gain of the optical amplifier. The method also includes producing an input optical signal using the optical signal source. The input optical signal includes a first plurality of pulses, each of the first plurality of pulses having an amplitude related to the modulator drive signal. The method further includes coupling the input optical signal to the optical amplifier and amplifying the input optical signal using the optical amplifier to produce an output optical signal including a second plurality of pulses.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 17, 2015
    Assignee: ESI-Pyrophotonics Lasers Inc.
    Inventors: Guillaume Blanchette, Richard Murison, Benoit Reid
  • Patent number: 8890025
    Abstract: A method of laser scribing a CdTe solar cell structure includes providing a laser operable to produce an optical pulse. The optical pulse is characterized by a temporal profile having a first power level during a first portion of the optical pulse and a second power level less than the first power level during a second portion of the optical pulse. The method also includes directing the optical pulse to impinge on the CdTe solar cell structure. The CdTe solar cell structure includes a substrate, a transmission spectrum control layer adjacent the substrate; a barrier layer adjacent the transmission spectrum control layer, and a conductive layer adjacent the barrier layer. The method further includes initiating a removal process for the conductive layer and terminating the removal process prior to removing the barrier layer.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: November 18, 2014
    Assignee: ESI-Pyrophotonics Lasers Inc.
    Inventors: Tullio Panarello, Mathew Rekow, Richard Murison
  • Patent number: 8847112
    Abstract: A series of laser pulses in a pulse train, each pulse with a beneficial temporal power shape instead of the conventional laser temporal power shape, scribes a line in a thin film of material on a substrate. The beneficial temporal pulse shape has a spike/plateau chair shape or a square pulse shape. Scribing a line in the thin film is achieved by placing the series of laser pulse spots on the line to be scribed such that there is an overlapping area between adjacent laser pulse spots along the line. The use of a series of laser pulses with beneficial pulse shape to scribe a line in the thin film results in a better quality and cleaner scribing process compared to that achieved with the conventional pulse shape.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: September 30, 2014
    Assignee: ESI-Pyrophotonics Lasers, Inc.
    Inventors: Tullio Panarello, Matthew Rekow, Richard Murison
  • Patent number: 8842362
    Abstract: A method of operating a fiber amplifier characterized by a spectral gain curve includes providing an input signal at a signal wavelength. The signal wavelength lies within an in-band portion of the spectral gain curve extending from a first in-band wavelength to a second in-band wavelength, the in-band portion being characterized by a first amplitude range. The method also includes providing pump radiation at a pump wavelength. The pump wavelength is less than the signal wavelength. The method further includes coupling the pump radiation to the fiber amplifier and amplifying the input signal to generate an output signal. All portions of the spectral gain curve at wavelengths less than the first in-band wavelength and greater than the pump wavelength are characterized by a second amplitude less than or equal to 10 dB greater than the first amplitude range.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: September 23, 2014
    Assignee: ESI-Pyrophotonics Lasers, Inc.
    Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard
  • Patent number: 8841157
    Abstract: A thin film photovoltaic device includes a substrate and a first conductive layer coupled to the substrate. The first conductive layer includes at least one first groove extending through a first portion of the first conductive layer to a portion of the substrate. The device also includes at least one semiconductor layer coupled to a remaining portion of the first conductive layer and the portion of the substrate. The at least one semiconductor layer includes a plurality of non-overlapping vias, each via extending through a portion of the at least one semiconductor layer to a portion of the first conductive layer. The device further includes a second conductive layer coupled to a remaining portion of the at least one semiconductor layer and portions of the first conductive layer. The second conductive layer includes at least one second groove extending through a portion of the second conductive layer to a portion of the at least one semiconductor layer.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: September 23, 2014
    Assignee: Esi-Pyrophotonics Lasers Inc
    Inventor: Matthew Rekow
  • Patent number: 8816246
    Abstract: A series of laser pulses, each pulse characterized by one or more predetermined pulse characteristics including wavelength, pulse energy, inter-pulse time interval, pulse width or pulse shape, is provided to drill a hole in a material. Drilling the hole in the material is achieved by placing the series of laser pulse spots at the location wherein the hole is to be drilled. One or more characteristics of one or more laser pulses in the series is changed in order to optimize the drilling process for the hole. The ability to change the characteristics of one or more laser pulses in the series of pulses to optimize the drilling process results in holes with desired attributes and a high drilling rate.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: August 26, 2014
    Assignee: ESI-Pyrophotonics Lasers, Inc.
    Inventors: Richard Murison, Mathew Rekow
  • Publication number: 20140126041
    Abstract: A method of operating a fiber amplifier characterized by a spectral gain curve includes providing an input signal at a signal wavelength. The signal wavelength lies within an in-band portion of the spectral gain curve extending from a first in-band wavelength to a second in-band wavelength, the in-band portion being characterized by a first amplitude range. The method also includes providing pump radiation at a pump wavelength. The pump wavelength is less than the signal wavelength. The method further includes coupling the pump radiation to the fiber amplifier and amplifying the input signal to generate an output signal. All portions of the spectral gain curve at wavelengths less than the first in-band wavelength and greater than the pump wavelength are characterized by a second amplitude less than or equal to 10 dB greater than the first amplitude range.
    Type: Application
    Filed: January 9, 2014
    Publication date: May 8, 2014
    Applicant: ESI-PYROPHOTONICS LASERS, INC.
    Inventors: RICHARD MURISON, TULLIO PANARELLO, BENOIT REID, REYNALD BOULA-PICARD
  • Patent number: 8665515
    Abstract: A method of operating a fiber amplifier characterized by a spectral gain curve includes providing an input signal at a signal wavelength. The signal wavelength lies within an in-band portion of the spectral gain curve extending from a first in-band wavelength to a second in-band wavelength, the in-band portion being characterized by a first amplitude range. The method also includes providing pump radiation at a pump wavelength. The pump wavelength is less than the signal wavelength. The method further includes coupling the pump radiation to the fiber amplifier and amplifying the input signal to generate an output signal. All portions of the spectral gain curve at wavelengths less than the first in-band wavelength and greater than the pump wavelength are characterized by a second amplitude less than or equal to 10 dB greater than the first amplitude range.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: March 4, 2014
    Assignee: ESI-PyroPhotonics Lasers, Inc.
    Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard
  • Publication number: 20130183046
    Abstract: A method of operating an optical amplifier includes determining a gain of the optical amplifier and providing a modulator drive signal to an optical signal source. The modulator drive signal is a function of the gain of the optical amplifier. The method also includes producing an input optical signal using the optical signal source. The input optical signal includes a first plurality of pulses, each of the first plurality of pulses having an amplitude related to the modulator drive signal. The method further includes coupling the input optical signal to the optical amplifier and amplifying the input optical signal using the optical amplifier to produce an output optical signal including a second plurality of pulses.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 18, 2013
    Applicant: ESI-PyroPhotonics Lasers, Inc.
    Inventors: Guillaume Blanchette, Richard Murison, Benoit Reid
  • Publication number: 20130168797
    Abstract: A thin film photovoltaic device includes a substrate and a first conductive layer coupled to the substrate. The first conductive layer includes at least one first groove extending through a first portion of the first conductive layer to a portion of the substrate. The device also includes at least one semiconductor layer coupled to a remaining portion of the first conductive layer and the portion of the substrate. The at least one semiconductor layer includes a plurality of non-overlapping vias, each via extending through a portion of the at least one semiconductor layer to a portion of the first conductive layer. The device further includes a second conductive layer coupled to a remaining portion of the at least one semiconductor layer and portions of the first conductive layer. The second conductive layer includes at least one second groove extending through a portion of the second conductive layer to a portion of the at least one semiconductor layer.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: ESI-PyroPhotonics Lasers, Inc.
    Inventor: Matthew Rekow
  • Patent number: 8265106
    Abstract: 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: Grant
    Filed: September 30, 2010
    Date of Patent: September 11, 2012
    Assignee: ESI-Pyrophotonics Lasers, Inc.
    Inventors: Richard Murison, Tullio Panarello, Benoit Reid, Reynald Boula-Picard, Pascal Deladurantaye, Robert Larose, Yves Taillon, Francois Brunet
  • Publication number: 20120111841
    Abstract: A series of laser pulses, each pulse characterized by one or more predetermined pulse characteristics including wavelength, pulse energy, inter-pulse time interval, pulse width or pulse shape, is provided to drill a hole in a material. Drilling the hole in the material is achieved by placing the series of laser pulse spots at the location wherein the hole is to be drilled. One or more characteristics of one or more laser pulses in the series is changed in order to optimize the drilling process for the hole. The ability to change the characteristics of one or more laser pulses in the series of pulses to optimize the drilling process results in holes with desired attributes and a high drilling rate.
    Type: Application
    Filed: May 4, 2011
    Publication date: May 10, 2012
    Applicant: ESI-PyroPhotonics Lasers, Inc.
    Inventors: Richard Murison, Mathew Rekow
  • Patent number: 7998838
    Abstract: A series of laser pulses in a pulse train, each pulse with a predetermined temporal power shape, scribes a line in a thin film of material on a substrate. The predetermined temporal pulse shape has a fast risetime and fast falltime and a pulse length between 10% power points of less than 10 ns. Scribing a line in the thin film is achieved by placing the series of laser pulse spots on the line to be scribed such that there is some overlapping area between adjacent laser pulse spots along the line. The use of a series of laser pulses with the predetermined pulse shape to scribe a line in the thin film results in a better quality and cleaner scribing process compared to that achieved with a conventional pulse shape.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: August 16, 2011
    Assignee: ESI-PyroPhotonics Lasers, Inc.
    Inventors: Matthew Rekow, Richard Murison, Tullio Panarello, Corey Dunsky
  • Publication number: 20110129958
    Abstract: A series of laser pulses in a pulse train, each pulse with a predetermined temporal power shape, scribes a line in a thin film of material on a substrate. The predetermined temporal pulse shape has a fast risetime and fast falltime and a pulse length between 10% power points of less than 10 ns. Scribing a line in the thin film is achieved by placing the series of laser pulse spots on the line to be scribed such that there is some overlapping area between adjacent laser pulse spots along the line. The use of a series of laser pulses with the predetermined pulse shape to scribe a line in the thin film results in a better quality and cleaner scribing process compared to that achieved with a conventional pulse shape.
    Type: Application
    Filed: November 24, 2010
    Publication date: June 2, 2011
    Applicant: ESI-PyroPhotonics Lasers, Inc.
    Inventors: Matthew Rekow, Richard Murison, Tullio Panarello, Corey Dunsky