Patents Examined by Thomas A Hollweg
  • Patent number: 10890788
    Abstract: An optical waveguide device module includes an optical waveguide device and a connection substrate provided outside the optical waveguide device, and these are housed in a housing. The optical waveguide device has a control electrode including a signal electrode and ground electrodes disposed to interpose the signal electrode between the ground electrodes. A signal line, ground lines disposed so as to interpose the signal line between the ground lines, and a back surface ground electrode disposed on a surface of the connection substrate are provided on the connection substrate. The ground line and the back surface ground electrode are electrically connected through a via hole passing through the connection substrate. Electrical connection means for electrically connecting the ground line and the ground electrode is provided. A connection portion of the electrical connection means on the ground line side is in the vicinity of the via hole of the ground line.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: January 12, 2021
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Hideki Ichimei, Toshio Kataoka
  • Patent number: 10884189
    Abstract: A fiber ring resonator having a relatively long loop of standard single-mode fiber with a short nanofiber segment. The evanescent mode of the nanofiber segment allows the cavity-enhanced field to interact with atoms in close proximity to the nanofiber surface.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: January 5, 2021
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE COUNTY
    Inventor: Todd Pittman
  • Patent number: 10866374
    Abstract: An optical bench including a substrate having a trench with the trench having an angled sidewall on which a reflective coating is provided. The optical bench also includes a first device and a waveguide positioned within the trench, a second device optically connected to the first device, and at least one active circuit electrically connected to the first device with the waveguide being positioned optically between the first device and the reflective coating. The optical bench also includes an optically transparent material that forms a first interface with the first device and a second interface with a first surface of the waveguide.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: December 15, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ying-Hao Kuo, Shang-Yun Hou, Wan-Yu Lee
  • Patent number: 10859776
    Abstract: The disclosed embodiments provide a method for integrating an optical interposer with one or more electronic dies and an optical-electronic (OE) printed circuit board (PCB). This method involves first applying surface-connection elements to a surface of the optical interposer, and then bonding the one or more electrical dies to the optical interposer using the surface-connection elements. Next, the method integrates the OE-PCB onto the surface of the optical interposer, wherein the integration causes the surface-connection elements to provide electrical connections between the optical interposer and the OE-PCB.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: December 8, 2020
    Assignee: The Regents of the University of California
    Inventors: Sung-Joo Ben Yoo, Robert S. Patti
  • Patent number: 10852475
    Abstract: A light transmission system is provided for operating an optically responsive circuit. The system includes a light guide film (LGF) to transmit light emitted from its edge, and a scattering node for directing the light to the circuit. The circuit is disposed on a proximate face of the LGF. The scattering node is disposed on a distal face of the LGF opposite the circuit. The circuit can be an integrated circuit, a light detection sensor or a photovoltaic cell.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: December 1, 2020
    Assignee: United States of America, as represented by the Secretary of the Navy
    Inventors: Kevin A. Boulais, Michael H. Fugate, Simin Feng, Walter D. Sessions, Robert B. Nichols, Victor H. Gehman, Jr.
  • Patent number: 10852547
    Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may be positioned to receive one or more of the diffracted beams from the MPE region and to out couple them from the optically transmissive substrate as output beams.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 1, 2020
    Assignee: Magic Leap, Inc.
    Inventors: Samarth Bhargava, Victor Kai Liu, Kevin Messer
  • Patent number: 10845539
    Abstract: An optical modulator capable of curbing deterioration of transmission properties due to deformation of a housing is provided. Provided is an optical modulator including a substrate (10) on which an optical waveguide (20) is formed and a housing (30) that accommodates the substrate, in which the optical waveguide includes mode conversion branching portions (21, 22) which convert a mode of light waves propagating through the optical waveguide and branch the light waves, a mounting portion (32) protruding from a surface (31) inside the housing and holding the substrate is formed, and the substrate is fixed to the mounting portion in an arrangement in which a fixed end (33) between the substrate and the mounting portion is positioned outside a region including the mode conversion branching portions when the substrate is seen in a plan view.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 24, 2020
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kei Kato, Norikazu Miyazaki
  • Patent number: 10823925
    Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 3, 2020
    Assignee: Auxora (Shenzhen) Inc
    Inventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang
  • Patent number: 10823926
    Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 3, 2020
    Assignee: Auxora (Shenzhen) Inc.
    Inventors: Jinghui Li, Yuan Liu, Haiquan Zhang, Xiaodong Huang
  • Patent number: 10823985
    Abstract: The present disclosure relates to optical switching devices and switch modules that are designed for long-term security monitoring of high-value infrastructure access entry points. Embodiments in accordance with the present disclosure include optical switches based on fiber-Bragg gratings whose operating wavelengths are based on the presence or absence of magnetic coupling between an embedded permanent magnet and an external element. By monitoring the spectral position of the operating wavelengths and/or the magnitude of a light signal at the operating wavelengths, the state of the magnetic coupling can be determined and used as an indicator of whether the security switch has been actuated.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: November 3, 2020
    Assignee: LUNA INNOVATIONS INCORPORATED
    Inventor: Stephen K. Ferguson
  • Patent number: 10809480
    Abstract: A fiber optic assembly is provided including a body defining a fiber routing volume, a plurality of fiber optic components disposed in a front side of the body, and a plurality of optical filters disposed within the volume. The plurality of optical filters enable at least twenty four (24) dense wavelength division multiplexing (DWDM) channels.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 20, 2020
    Assignee: Corning Research & Development Corporation
    Inventors: Terry Dean Cox, Dong Gui, Lingling Hu, Scott William Ramsdell, Diana Rodriguez
  • Patent number: 10788627
    Abstract: A fiber bulge (“bulge”) formed in an end of an optical fiber for positioning the optical fiber in a ferrule bore is disclosed. An energy source is controlled to direct focused energy to the end of the optical fiber extended from the front end face of the ferrule to expose and melt the end of the optical fiber into a bulge of desired geometry and size. The bulge comprises a cross-sectional region having an outer surface having a minimum outer diameter larger than the inner diameter of the ferrule bore. Thus, the optical fiber may be pulled back in the ferrule bore such that at least a portion of the outer surface of the interface region of the bulge interferes with and engages the front opening of the ferrule bore to position the fiber core within the ferrule bore.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: September 29, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: Venkata Adiseshaiah Bhagavatula, Woraphat Dockchoorung, Riley Saunders Freeland, Klaus Hartkorn
  • Patent number: 10788687
    Abstract: An optomechanical system including a guide structure, to guide a light beam; and two waveguide segments. Each guide structure include beams that together form two combs partially nested one in the other. At least one beam is free to move in translation along an axis orthogonal to the long axis of the guide structure. A displacement into an optical phase shift, while limiting additional effects on the intensity.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 29, 2020
    Assignee: COMMISSARIAT A L'ENERGIES ALTERNATIVES
    Inventors: Boris Taurel, Laurent Duraffourg, Pierre Labeye
  • Patent number: 10782498
    Abstract: A fiber distribution device includes a swing frame chassis pivotally mounted to a support structure. At least a first optical splitter module is mounted to the swing frame chassis. Pigtails having connectorized ends are carried by the swing frame chassis and have portions that are routed generally vertically on the swing frame chassis. An optical termination field includes fiber optic adapters carried by the swing frame chassis. The fiber optic adapters are configured to receive the connectorized ends of the pigtails.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: September 22, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Randy Reagan, Jeffrey Gniadek, Thomas Parsons, Michael Noonan
  • Patent number: 10768659
    Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: September 8, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Nicholas Christopher Harris, Dirk Englund
  • Patent number: 10768433
    Abstract: An apparatus includes a laser system that includes a first fiber having an output end and situated to propagate a first laser beam with a first beam parameter product (bpp) and a second fiber having an input end spliced to the output end of the first fiber at a fiber splice so as to receive the first laser beam and to form a second laser beam having a second bpp that is greater than the first bpp, wherein the output end of the first fiber and the input end of the second fiber are spliced at a tilt angle so as to increase the first bpp to the second bpp.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: September 8, 2020
    Assignee: nLIGHT, Inc.
    Inventors: David Logan, Ryan Hawke, David R. Balsley, Ron Stevens
  • Patent number: 10754090
    Abstract: A plurality of optical fiber groups are housed in an optical fiber cable and which of the optical fiber groups optical fibers, which constitute the optical fiber groups, belong to can be identified depending on a covering of the optical fibers. Each of optical connectors (plug, receptacle) which are respectively attached to both ends of the optical fiber cable has regions, in which insertion holes in which the optical fibers are inserted and fixed one by one are formed to be arranged in a predetermined interval, in the same number as the number of the optical fiber groups, and even though the optical fibers in one optical fiber group are inserted and fixed in the insertion holes in an identical region, an arrangement order of the optical fibers in the region of the optical connector provided on one end is not maintained as an arrangement order of the optical fibers in the region of the optical connector provided on the other end.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 25, 2020
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Yuichi Koreeda, Hideto Shimazu, Masaki Ishiguro
  • Patent number: 10746938
    Abstract: A fiber optic connector includes a ferrule assembly at least partially disposed within a connector housing. The ferrules project distally from the connector housing and are biased in the distal direction by a common ferrule spring. Proximal ends of the ferrules and the ferrule spring are disposed within the same interior cavity of the connector housing. In certain examples, no portion of the connector housing extends between ferrule hubs supporting the ferrules.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 18, 2020
    Assignee: CommScope Technologies LLC
    Inventor: Robert Charles Flaig
  • Patent number: 10739536
    Abstract: An optical connection component 1 includes an optical fiber 10 having a bent portion BA, and a fiber fixing part 20. The optical fiber 10 includes a glass fiber 11 and a resin coating 12. The fiber fixing part 20 includes an optical array member 24 and a protective resin 23. A distal end of the glass fiber 11 and an end surface of the optical array member 24 form a reference surface S. The bent portion BA is formed in a region including the exposed glass fiber 11. A predetermined section in a region C, which continues from the bent portion BA on a side opposite to an end portion of the optical fiber 10 supported by the fiber fixing part 20 with the bent portion BA interposed therebetween, is inclined to approach the reference surface S while going away from the bent portion BA.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: August 11, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Naoki Matsushita, Tetsuya Nakanishi, Toshiki Taru
  • Patent number: 10739521
    Abstract: A microwave waveguide switch that can route electromagnetic radiation by switching one or more first waveguides into one or more second waveguides. The device utilizes a stacked moveable routing component comprising multiple different routing configurations in a single stack. An external actuator moves the stack in such a way as to align different ports with different signal waveguides thereby achieving different routing states.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: August 11, 2020
    Assignee: XIDAS INC.
    Inventor: Mark Bachman