Patents by Inventor Gregory D. Goodno

Gregory D. Goodno 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: 20220350157
    Abstract: A coherently beam combining (CBC) fiber laser amplifier system including beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile and cause the profile to taper to a lower value at a perimeter of each input array cell. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: July 1, 2022
    Publication date: November 3, 2022
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG
  • Publication number: 20220352688
    Abstract: A WDM seed beam source for a fiber laser amplifier system that includes a number of master oscillators that generate seed beams at different wavelengths and a spectral multiplexer that multiplexes all of the seed beams onto a single fiber. An EOM modulates the combined seed beams on the single fiber and a spectral demultiplexer then separates the modulated seed beams into their constituent wavelengths on separate fibers before the seed beams are amplified and spectrally combined. The fiber laser amplifier system includes a separate fiber amplifier that amplifies the separated seed beams, an emitter array that directs the amplified beams into free space, beam collimating optics that focuses the uncombined beams, and an SBC grating responsive to the collimated uncombined beams that spatially combines the collimated uncombined beams.
    Type: Application
    Filed: July 1, 2022
    Publication date: November 3, 2022
    Inventors: GREGORY D. GOODNO, ERIC C. CHEUNG
  • Publication number: 20220334401
    Abstract: A hybrid coherent beam combining (CBC) and spectral beam combining (SBC) fiber laser amplifier system including a beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of rectilinear input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: June 30, 2022
    Publication date: October 20, 2022
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG
  • Publication number: 20220332629
    Abstract: A system and method for fabricating an optical element. The method includes welding an array of fibers to the optical element, measuring an angle error and a position error of each fiber, calculating a correction for each fiber for the angle error and the position error and correcting the angle and position of each fiber using the calculated corrections.
    Type: Application
    Filed: June 29, 2022
    Publication date: October 20, 2022
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG, JAMES G. HO, DUSTIN GUENTHER
  • Patent number: 11448889
    Abstract: A spectral beam combining (SBC) fiber laser amplifier system including a beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of input cells positioned adjacent to each other that are shaped to cause the beams to expand as they propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile and be tapered to a lower value at a perimeter of each input array cell. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beams to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: September 20, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg
  • Patent number: 11446776
    Abstract: A method for assembling a beam combiner array including providing an array block having a back wall, a front surface and a plurality of aligned channels extending from the back wall to the front surface, where a bore extends through the back wall and into each channel, and providing a lens array including a plurality of lenses. The method further includes securing the lens array to the front surface of the block so that one of the lenses is aligned with each channel and threading a separate hollow core fiber through one of the bores in the back wall so that an end of the fiber is positioned within the channel. The method also includes aligning each fiber to the lens array so that a beam that propagates down the fiber is emitted into the channel, focused by the lens and emitted from the array as a collimated beam.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: September 20, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: James G Ho, Joseph M Harkenrider, Dustin Guenther, Gregory D Goodno
  • Patent number: 11422381
    Abstract: A coherently beam combining (CBC) fiber laser amplifier system including beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile and cause the profile to taper to a lower value at a perimeter of each input array cell. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 23, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg
  • Patent number: 11415810
    Abstract: A hybrid coherent beam combining (CBC) and spectral beam combining (SBC) fiber laser amplifier system including a beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of rectilinear input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 16, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg
  • Patent number: 11411366
    Abstract: A WDM seed beam source for a fiber laser amplifier system that includes a number of master oscillators that generate seed beams at different wavelengths and a spectral multiplexer that multiplexes all of the seed beams onto a single fiber. An EOM modulates the combined seed beams on the single fiber and a spectral demultiplexer then separates the modulated seed beams into their constituent wavelengths on separate fibers before the seed beams are amplified and spectrally combined. The fiber laser amplifier system includes a separate fiber amplifier that amplifies the separated seed beams, an emitter array that directs the amplified beams into free space, beam collimating optics that focuses the uncombined beams, and an SBC grating responsive to the collimated uncombined beams that spatially combines the collimated uncombined beams.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: August 9, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Eric C. Cheung
  • Patent number: 11407672
    Abstract: A method for fabricating a beam shaper array assembly, where the beam shaper array assembly changes the shape of a plurality of beams. The method includes providing an optical endcap having a plurality of connector stems, welding a fiber to each of the stems to form an emitter array and positioning a beam shaper array adjacent to the endcap opposite to the stems. The method also includes measuring an angle error and a position error of each fiber, calculating a correction for each fiber for the angle error and the position error and correcting the angle and position of each fiber using the calculated corrections.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 9, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg, James G. Ho, Dustin Guenther
  • Patent number: 11409032
    Abstract: A method for reducing nonlinear frequency shifts and suppressing stimulated Brillouin scattering (SBS) in a fiber laser amplifier system. The method includes providing a seed beam having a certain wavelength and frequency modulating the seed beam with an RF waveform to spectrally broadening the seed beam, where the RF waveform is a relatively slow-speed waveform having a large modulation depth. The method also includes amplifying the frequency modulated seed beam with an amplifier having a large nonlinear phase shift and exhibiting frequency modulation (FM) to amplitude modulation (AM) conversion, where the modulation depth is much larger than the nonlinear phase shift of the amplifier.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 9, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Gregory D. Goodno
  • Patent number: 11294193
    Abstract: A fiber amplifier system including a plurality of seed beam sources each generating a seed beam at a different wavelength and a plurality of fiber amplifiers that amplify the seed beams. The system also includes a spectral beam combining (SBC) grating that spatially combines the amplified beams and directs them in the same direction as an output beam, and a first fiber sampler and a second fiber sampler that generate a first fiber sample beam having a first intensity and a second fiber sample beam having a second intensity. The system further includes a configuration of optical and electrical feedback components that determine a difference between the first intensity and the second intensity and use the difference to control the wavelength of all of the seed beams so that all of the amplified beams are spatially aligned and propagating in the same direction in the output beam.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 5, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventor: Gregory D. Goodno
  • Patent number: 11294192
    Abstract: A beam shaper array assembly including a beam source that provides a plurality of beams having a low fill factor profile. The assembly also includes an input beam shaper array having cells positioned adjacent to each other, where each cell includes an input beam shaper that receives one of the plurality beams and is shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile. The assembly further includes an output beam shaper array having cells positioned adjacent to each other, where each cell includes an output beam shaper that receives one of the converted beams and is shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: April 5, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg, William H. Long
  • Patent number: 11269136
    Abstract: A beam combiner array assembly including an array block having a back wall and a front surface and a plurality of aligned and sealed channels extending from the back wall to the front surface. A lens array including a plurality of lenses is secured to the front surface of the block so that one of the lenses is aligned with each channel, and a plurality of fiber flanges are secured to the back wall of the block so that a separate one of the flanges is aligned with each channel. A hollow core fiber extends through each flange and the back wall so that an end of the fiber is positioned within one of the channels. A beam that propagates down each fiber is emitted into the channel, focused by the lens and emitted from the assembly as a collimated beam.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: March 8, 2022
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: James G. Ho, Joseph M. Harkenrider, Dustin Guenther, Gregory D. Goodno
  • Publication number: 20220063031
    Abstract: A method for assembling a beam combiner array including providing an array block having a back wall, a front surface and a plurality of aligned channels extending from the back wall to the front surface, where a bore extends through the back wall and into each channel, and providing a lens array including a plurality of lenses. The method further includes securing the lens array to the front surface of the block so that one of the lenses is aligned with each channel and threading a separate hollow core fiber through one of the bores in the back wall so that an end of the fiber is positioned within the channel. The method also includes aligning each fiber to the lens array so that a beam that propagates down the fiber is emitted into the channel, focused by the lens and emitted from the array as a collimated beam.
    Type: Application
    Filed: August 27, 2020
    Publication date: March 3, 2022
    Inventors: James G. Ho, Joseph M. Harkenrider, Dustin Guenther, Gregory D. Goodno
  • Publication number: 20220066094
    Abstract: A beam combiner array assembly including an array block having a back wall and a front surface and a plurality of aligned and sealed channels extending from the back wall to the front surface. A lens array including a plurality of lenses is secured to the front surface of the block so that one of the lenses is aligned with each channel, and a plurality of fiber flanges are secured to the back wall of the block so that a separate one of the flanges is aligned with each channel. A hollow core fiber extends through each flange and the back wall so that an end of the fiber is positioned within one of the channels. A beam that propagates down each fiber is emitted into the channel, focused by the lens and emitted from the assembly as a collimated beam.
    Type: Application
    Filed: August 27, 2020
    Publication date: March 3, 2022
    Inventors: James G. Ho, Joseph M. Harkenrider, Dustin Guenther, Gregory D. Goodno
  • Publication number: 20210103154
    Abstract: A coherently beam combining (CBC) fiber laser amplifier system including beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile and cause the profile to taper to a lower value at a perimeter of each input array cell. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG
  • Publication number: 20210103153
    Abstract: A spectral beam combining (SBC) fiber laser amplifier system including a beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of input cells positioned adjacent to each other that are shaped to cause the beams to expand as they propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile and be tapered to a lower value at a perimeter of each input array cell. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beams to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG
  • Publication number: 20210103152
    Abstract: A beam shaper array assembly including a beam source that provides a plurality of beams having a low fill factor profile. The assembly also includes an input beam shaper array having cells positioned adjacent to each other, where each cell includes an input beam shaper that receives one of the plurality beams and is shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile. The assembly further includes an output beam shaper array having cells positioned adjacent to each other, where each cell includes an output beam shaper that receives one of the converted beams and is shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG, WILLIAM H. LONG
  • Publication number: 20210103155
    Abstract: A hybrid coherent beam combining (CBC) and spectral beam combining (SBC) fiber laser amplifier system including a beam shaper array assembly and a beam source that provides a plurality of beams having a low fill factor profile. The assembly includes an input beam shaper array having a plurality of rectilinear input cells positioned adjacent to each other that are shaped to cause the beam to expand as it propagates away from the input array to be converted from the low fill factor profile to a high fill factor profile. The assembly further includes an output beam shaper array having a plurality of output cells positioned adjacent to each other that are shaped to cause the beam to stop expanding so that the output array provides a plurality of adjacent beams with minimal overlap and a minimal gap between the beams.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: GREGORY D. GOODNO, JOSHUA E. ROTHENBERG