Patents by Inventor L. Brandon Shaw

L. Brandon Shaw 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: 20190265573
    Abstract: An optical system has a beam-steering device, a light source, and a controller that controls the light source to actively control wavelength of the incoming light to control the output angle of the outgoing light output from the BS device. The BS device may have incoupler, waveguide, and/or outcoupler electrodes, and the system may have corresponding controllable voltage supplies actively controlled by the controller to selectively modify electric fields applied to the BS device to control corresponding operating characteristics of the BS device (e.g., in-plane and/or out-of-plane output angles of the outgoing light and/or device incoupling angle). An alternative optical system has a BS device, a detector array that generates detector signals corresponding to outgoing light received from the BS device, and a controller that processes the detector signals to determine one or more wavelengths of the outgoing light.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 29, 2019
    Inventors: JASON D. MYERS, Jesse A. Frantz, Christopher M. Spillmann, Robel Y. Bekele, Henry G. Gotjen, Jawad Naciri, Jakub Kolacz, L. Brandon Shaw, Jasbinder S . Sanghera .
  • Patent number: 10394102
    Abstract: A device for the generation of supercontinuum in infrared fiber with a compact light source comprising a microchip laser is launched directly into an infrared fiber without a nonlinear element. Light from the laser is beyond the two-photon absorption of the infrared fiber. The broadband output has a bandwidth greater than the input laser bandwidth by at least 100% and an emission wavelength range from 2 to 14 micrometers.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: August 27, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Rafael R. Gattass, Jasbinder S. Sanghera, L. Brandon Shaw
  • Patent number: 10389082
    Abstract: The invention relates to rare-earth-doped ternary sulfides. The rare-earth-doped ternary sulfides may be used as an active material for mid-wave infrared and long-wave infrared lasers and amplifiers. Methods for producing laser materials including rare-earth-doped ternary sulfides, as well as lasers and amplifiers incorporating the laser materials, are also provided.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: August 20, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: L. Brandon Shaw, Michael P. Hunt, Woohong Kim, Shyam S. Bayya, Steven R. Bowman, Frederic H. Kung, Jasbinder S. Sanghera, Christopher G. Brown
  • Patent number: 10370280
    Abstract: A method of making an optical fiber with multiple openings comprising the steps of fabricating an extrusion die using additive manufacturing such that the extrusion die has a plurality of channels that combine inside the die into another set of channels, extruding a glass, forming a fiber optic preform having a plurality of longitudinal openings that run the entire length, attaching a barrier layer for pressure application, and stretching the preform into an optical fiber with multiple openings. An extrusion die comprising an additive manufactured material, having a proximal side having openings and having a distal side having openings, wherein the openings of the proximal side are of feed channels, wherein the openings of the distal side are of forming channels, and wherein in side the body of the die, two of the feed channels combine the forming channels.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: August 6, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Daniel J. Gibson, Rafael R. Gattass, Daniel L. Rhonehouse, Shyam S. Bayya, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20190204710
    Abstract: An optical system has a beam-steering device having a planar waveguide region between a tapered incoupler and a tapered outcoupler that respectively define opposing incoupler and outcoupler facets of the BS device. Each region has a substrate, a subcladding layer over the substrate, a core layer over the subcladding, and a top cladding layer over the core. Within the incoupler, at least one of the subcladding and the top cladding has a material having a refractive index that varies with an applied field (e.g., an electric field) applied at the incoupler. The optical system also has a field-applying device that applies the applied field at the incoupler, an output detector that generates a feedback signal based on detected outgoing light output from the outcoupler, and a controller that controls the field-applying device based on the feedback signal to alter the light output from the outcoupler.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 4, 2019
    Inventors: JASON D. MYERS, Jesse A. Frantz, Christopher M. Spillmann, Robel Y. Bekele, Henry G. Gotjen, Jawad Naciri, Jakub Kolacz, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20190204711
    Abstract: A beam-steering device, such as a steerable electro-evanescent optical refractor, has a planar waveguide region between an incoupler and an outcoupler. Each region has a substrate and a plurality of thin-film layers, such as a subcladding layer over the substrate and a core layer over the subcladding. For at least one coupler, at least two of the thin-film layers have spatially varying optical thicknesses due to, for example, the subcladding and the core being tapered with decreasing thicknesses from the waveguide region to the corresponding facet of the BS device. Alternatively, spatially varying optical thickness can be achieved by spatially varying a layer's refractive index. The coupler has a FWHM bandwidth and a FWHM coupling angle tolerance that greatly exceed those achievable using conventional Ulrich couplers.
    Type: Application
    Filed: January 3, 2019
    Publication date: July 4, 2019
    Inventors: Jason D. Myers, Jesse A. Frantz, Christopher M. Spillmann, Robel Y. Bekele, Henry G. Gotjen, Jawad Naciri, Jakub Kolacz, L. Brandon Shaw, Jasbinder S. Sanghera
  • Patent number: 10338315
    Abstract: Systems and methods are disclosed for splicing crystal fibers to silica glass fibers. Embodiments of the present disclosure provide mechanically stable bonds with negligible optical transmission loss by splicing fibers through a thermally enhanced reaction bonding process at lower temperatures than the melting point of the crystal. In an embodiment, mixing of the materials at elevated temperatures forms a stable intermediary material which enhances strength and reduces the transmission losses.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 2, 2019
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Rajesh Thapa, Rafael R. Gattass, Daniel J. Gibson, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20190094654
    Abstract: A device for the generation of supercontinuum in infrared fiber with a compact light source comprising a microchip laser is launched directly into an infrared fiber without a nonlinear element. Light from the laser is beyond the two-photon absorption of the infrared fiber. The broadband output has a bandwidth greater than the input laser bandwidth by at least 100% and an emission wavelength range from 2 to 14 micrometers.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 28, 2019
    Inventors: Rafael R. Gattass, Jasbinder S. Sanghera, L. Brandon Shaw
  • Publication number: 20190094465
    Abstract: A system and method for creating a random anti-reflective surface structure on an optical fiber including a holder configured to hold the optical fiber comprising a groove and a fiber connector, an adhesive material to hold the optical fiber in the holder and fill any gap between the optical fiber and the holder, a glass to cover the adhesive material and the optical fiber, and a reactive ion etch device. The reactive ion etch device comprises a plasma and is configured to expose an end face of the optical fiber to the plasma. The plasma is configured to etch a random anti-reflective surface structure on the end face of the optical fiber.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 28, 2019
    Inventors: Jesse A. Frantz, Lynda E. Busse, Jason D. Myers, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Catalin M. Florea
  • Patent number: 10126630
    Abstract: A device for the generation of supercontinuum in infrared fiber with a light source comprising a pulsed microchip laser operating at a wavelength greater than one micrometer, a nonlinear optical parametric element operated without a cavity, and an infrared fiber. Light from the laser is pumped into the nonlinear optical parametric element to generate two new wavelengths, and the output from the nonlinear optical parametric element is launched into the infrared fiber. Output from the infrared fiber has a bandwidth greater than the input laser bandwidth by at least 100% and an emission wavelength range from 2 to 14 micrometers.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 13, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Rafael R. Gattass, Jasbinder S. Sanghera, L. Brandon Shaw
  • Publication number: 20180172882
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a three-dimensional film layer applied to the surface of the optical element. The methods beneficially permit materials that do not exhibit local variation in physical and chemical properties to be provided with ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: December 7, 2017
    Publication date: June 21, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. FRANTZ, Lynda E. BUSSE, L. Brandon SHAW, Jasbinder S. SANGHERA, Ishwar D. AGGARWAL, Menelaos K. Poutous
  • Publication number: 20180136370
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on an optical element using a seed layer of material deposited on the surface of the optical element. The seed layer is removed during or after the etching, and serves to control etching time as well as the transmission region of the optical element having ARSS. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Lynda E. Busse, Jesse A. Frantz, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Menelaos K. Poutous
  • Publication number: 20180136368
    Abstract: The invention relates to methods for fabricating antireflective surface structures (ARSS) on optical elements. Optical elements having ARSS on at least one surface are also provided.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Lynda E. Busse, L. Brandon Shaw, Jasbinder S. Sanghera, Ishwar D. Aggarwal, Kevin J. Major, Menelaos K. Poutous, Karteek Kunala
  • Publication number: 20180106968
    Abstract: Systems and methods are disclosed for splicing crystal fibers to silica glass fibers. Embodiments of the present disclosure provide mechanically stable bonds with negligible optical transmission loss by splicing fibers through a thermally enhanced reaction bonding process at lower temperatures than the melting point of the crystal. In an embodiment, mixing of the materials at elevated temperatures forms a stable intermediary material which enhances strength and reduces the transmission losses.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 19, 2018
    Inventors: Rajesh Thapa, Rafael R. Gattass, Daniel J. Gibson, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20180109063
    Abstract: Methods for synthesizing fibers having nanoparticles therein are provided, as well as preforms and fibers incorporating nanoparticles. The nanoparticles may include one or more rare earth ions selected based on fluorescence at eye-safer wavelengths, surrounded by a low-phonon energy host. Nanoparticles that are not doped with rare earth ions may also be included as a co-dopant to help increase solubility of nanoparticles doped with rare earth ions in the silica matrix. The nanoparticles may be incorporated into a preform, which is then drawn to form fiber. The fibers may beneficially be incorporated into lasers and amplifiers that operate at eye safer wavelengths. Lasers and amplifiers incorporating the fibers may also beneficially exhibit reduced Stimulated Brillouin Scattering.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Colin C. Baker, Edward J. Friebele, Woohong Kim, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20180093912
    Abstract: A method of making an optical fiber with multiple openings comprising the steps of fabricating an extrusion die using additive manufacturing such that the extrusion die has a plurality of channels that combine inside the die into another set of channels, extruding a glass, forming a fiber optic preform having a plurality of longitudinal openings that run the entire length, attaching a barrier layer for pressure application, and stretching the preform into an optical fiber with multiple openings. An extrusion die comprising an additive manufactured material, having a proximal side having openings and having a distal side having openings, wherein the openings of the proximal side are of feed channels, wherein the openings of the distal side are of forming channels, and wherein in side the body of the die, two of the feed channels combine the forming channels.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 5, 2018
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Daniel J. Gibson, Rafael R. Gattass, Daniel L. Rhonehouse, Shyam S. Bayya, L. Brandon Shaw, Jasbinder S. Sanghera
  • Publication number: 20170371229
    Abstract: A device for the generation of supercontinuum in infrared fiber with a pump light comprising a microchip laser operating with a wavelength of 1.0 ?m or greater that can be wavelength shifted though a nonlinear element to a wavelength beyond the two-photon absorption of the infrared fiber and launched into infrared fiber whereby the spectrum is broadened in the infrared fiber through various nonlinear processes to generate a supercontinuum within the mid-IR from 2 to 14 ?m.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Rafael R. Gattass, Jasbinder S. Sanghera, L. Brandon Shaw
  • Publication number: 20170307782
    Abstract: The present invention provides a specific gradient-optical-index porous (GRIP) layer coating on inorganic optical substrate surfaces, and the fabrication method used to create the GRIP layer coating. The method consists of two major processing steps: (1) the co-deposition of an optical index-matching material and a mass density-modulating material, followed by (2) the sacrificial etch of the mass-density-modulating material to reveal a GRIP surface. The method is designed for use with crystalline, polycrystalline, and dry or wet etch-resistant substrate materials, where anti-reflective (AR) solutions using AR surface structures (ARSSs) do not exist. These coatings are designed to minimize Fresnel reflectivity of the original substrate surfaces, using a single porous layer matched to the optical index of the original substrate material.
    Type: Application
    Filed: April 21, 2017
    Publication date: October 26, 2017
    Inventors: Menelaos K. POUTOUS, Ishwar D. AGGARWAL, Abigail H. PELTIER, Lynda E. BUSSE, Jesse FRANTZ, L. Brandon SHAW, Jas S. SANGHERA
  • Patent number: 9785033
    Abstract: A device for the generation of supercontinuum in infrared fiber with a pump light comprising a microchip laser operating with a wavelength of 1.0 ?m or greater that can be wavelength shifted though a nonlinear element to a wavelength beyond the two-photon absorption of the infrared fiber and launched into infrared fiber whereby the spectrum is broadened in the infrared fiber through various nonlinear processes to generate a supercontinuum within the mid-IR from 2 to 14 ?m.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: October 10, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Rafael R. Gattass, Jasbinder S. Sanghera, L. Brandon Shaw
  • Publication number: 20160079810
    Abstract: A system for transmitting power to a remote equipment, the system including a first laser source that generates a first laser beam; a first tracking device operatively connected to the first laser source, wherein the first tracking device controls a direction of the first laser beam; and a first photovoltaic device operatively connected to the remote equipment located remotely from the first laser source and the first tracking device, wherein the first photovoltaic device includes a semiconductor material that generates an electric current in response to absorbing the first laser beam, and wherein a first wavelength of the first laser beam is within an eye-safer range.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 17, 2016
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Jason D. Myers, Steven R. Bowman, L. Brandon Shaw, Jasbinder S. Sanghera