Patents Examined by Ellen E. Kim
  • Patent number: 10895701
    Abstract: The light communication solution presented herein uses waveguides with multiple entrances to efficiently collect light used for light communications and propagate that collected light to a sensor. To that end each waveguide entrance, or at least all but the initial waveguide entrance, is configured to not only collect and input the light into the TIR waveguide, but also to maintain TIR of light already propagating within the TIR waveguide. In so doing, the solution presented herein increases the amount of light available for light communications. Further, because each waveguide may channel light from multiple collection points to a single sensor, the solution presented herein reduces the number of sensors needed for the light communications. The solution presented herein facilitates the implementation of light communications for a wide variety of devices (e.g., cellular telephones, tablets, smartphones, smart watches, smart glasses, etc.) and/or in a wide variety of scenarios.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: January 19, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Magnus L. Olsson, Alexander Hunt, Andreas Kristensson
  • Patent number: 10890731
    Abstract: An adapter includes an upper lid housing provided in right and left wall surfaces with locking projections and provided in an upper wall surface with an arm, a shutter plate arranged in an opening side of the upper lid housing in a rising direction, a sleeve holder constructed by a first cylinder and a second cylinder holding a split sleeve therebetween, a lower lid housing provided in right and left wall surfaces with locked hole portions for fitting the locking projections and provided in an upper wall surface with a locking concave portion locking the arm, and a through hole for inserting a fitting projection provided in a protruding manner in a leading end of a bottom plate of the lower lid housing into a lower end of the upper lid housing. Thus, a guiding performance is improved and an LC-type optical connector plug can be housed compactly.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: January 12, 2021
    Assignee: SANWA DENKI KOGYO CO., LTD.
    Inventor: Yasuhiro Watanabe
  • Patent number: 10884173
    Abstract: A near eye display including: a first optical waveguide having a direction of elongation, at least one pair of parallel faces, and a first coupling-out mechanism; a second optical waveguide having an input aperture, a pair of parallel faces, and a second coupling out-mechanism; an optical coupling between the first optical waveguide and the second waveguide, the optical coupling including at least an air gap configured to enable total internal reflection within the first waveguide, and an interface window, the interface window comprising a transparent optical element with a refractive index substantially the same as a refractive index of the second optical waveguide; and wherein at least a portion of the interface window projects beyond the input aperture of the second optical waveguide such that undesired light exiting the first waveguide is prevented from entering the second waveguide.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: January 5, 2021
    Assignee: Lumus Ltd.
    Inventors: Yochay Danziger, Naamah Levin
  • Patent number: 10883870
    Abstract: The fiber optic probe detects changes in ultrasound pressure in an immersion medium such as a liquid, a gas, or a solid, where the system includes an optical fiber probe having a fiber of the probe has a highly doped (or regular) core with a diameter in the range 5 to 10 ?m and a clad diameter equal to or more than 50 ?m; and the optical fiber tip has been modified in a D-shaped (or V-shaped) structure where the clad material has been removed from one side of the cylindrical fiber to the surface of the fiber core; then, this modified region of the fiber is coated, with a very thin layer of a metallic material, ranging from 3 to 10 nm.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: January 5, 2021
    Assignee: Drexel University
    Inventors: Mahmoud A. El-Sherif, Afshin S. Daryoush, Peter A. Lewin, Rupa Gopinath Minasamudram
  • Patent number: 10886716
    Abstract: An electrical box having a standard forward-facing opening but also having an expanded enclosure behind the opening. The opening allows the use of conventional prior art components (such as cover plates). The expanded enclosure allows a more generous bend radius for the creation of a service loop in a fiber optic cable or similar component.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: January 5, 2021
    Assignee: Metra Electronics Corporation
    Inventors: Jessy Crabb, Stewart Denton
  • Patent number: 10862266
    Abstract: A light source device includes a sub-mount, a semiconductor laser element flip chip mounted on the sub-mount, and a planar lightwave circuit (PLC) which is an optical member having a waveguide disposed on a substrate. The semiconductor laser element and the waveguide are arranged such that a light-emitting point of the semiconductor laser element and a core of the waveguide are substantially aligned. A light-reflecting surface is provided such that light emitted from the semiconductor laser element and propagating along a propagating direction in the planar lightwave circuit is reflected at the light-reflecting surface in a direction substantially normal to the propagating direction. A portion of the substrate of the planar lightwave circuit is removed at least in a predetermined range from an end opposite to a light incident surface of the planar lightwave circuit.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 8, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Tadaaki Miyata
  • Patent number: 10852490
    Abstract: An adapter holding a plurality of connectors and a clip positioned around a group of connectors securing the connectors together as a single assembly. The clip removes the group connectors from the adapter upon removal therefrom.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: December 1, 2020
    Assignee: Senko Advanced Components, Inc.
    Inventors: Jimmy Jun-Fu Chang, Kazuyoshi Takano
  • Patent number: 10852482
    Abstract: The precision TFF POSA is formed by pressing a TFF glass rod array into a top surface of a master glass block to flatten the otherwise curved TFFs formed using conventional TFF deposition processes on glass. The TFF glass rod array is secured to the master glass block with a securing material to form a fabrication structure, which is singulated to form precision TFF POSAs having TFF members with flat TFFs and long TFF member long axes. A fiber interface device is arranged at a back surface of the TFF POSA. Other fiber interface devices having device axes are arranged proximate the TFF members. The device axes are parallel to the TFF member long axes to form a WDM system with a parallel configuration. In this configuration, there is one positionally adjustable fiber interface device for each wavelength channel, which allows for optimizing WDM optical communication in Mux and DeMux directions.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 1, 2020
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Dong Gui, Qijun Xiao
  • Patent number: 10845545
    Abstract: In various embodiments, the beam parameter product and/or numerical aperture of a laser beam is adjusted utilizing a step-clad optical fiber having a central core, a first cladding, an annular core, and a second cladding.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 24, 2020
    Assignee: TERADIODE, INC.
    Inventors: Wang-Long Zhou, Francisco Villarreal-Saucedo, Parviz Tayebati, Bien Chann
  • Patent number: 10845546
    Abstract: Systems for providing an optical rotary joint are provided. In some embodiments, a system comprises: a lens-less optical rotary joint, comprising: a guide ferrule; a rotatable ferrule; a rotatable optical fiber, the rotatable optical fiber passing through the rotatable ferrule and the guide ferrule, the rotatable optical fiber being secured within the rotatable ferrule, and the rotatable optical fiber being freely rotatable within the guide ferrule; and a coupler to secure the guide ferrule and receive a static ferrule including a static optical fiber such that a face of the static optical fiber is proximate a face of the rotatable optical fiber.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: November 24, 2020
    Assignee: The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Zhonglie Piao
  • Patent number: 10830958
    Abstract: An optical connector according to an embodiment includes: an optical fiber extending along a connecting direction; a front housing in a tubular shape including a first opening and a second opening; a ferrule configured to retain the optical fibers and having a light incidence-emission part optically connected to a corresponding connector; a pin keeper configured to retain a guide pin inserted into the ferrule; and a rear housing fixed with the second opening covered and configured to support the coil spring in the inside of the front housing. The rear housing has an insertion hole into which the optical fiber is insertable from a direction intersecting with the connecting direction.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: November 10, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takako Hosokawa, Takuro Watanabe
  • Patent number: 10830976
    Abstract: The present disclosure relates to splicing and termination trays, distribution frames, and fiber distribution terminals. One example splicing and termination tray includes a lower splice tray and an adapter panel that is disposed at a front end of the lower splice tray. The adapter panel is detachable from the lower splice tray. Strength of the adapter panel is greater than strength of a molded part structure. An adapter mounting hole is provided on the adapter panel. The adapter mounting hole is used to fasten adapters. A quantity of the adapters is the nth multiple of 12, where n is a natural number greater than or equal to 2.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: November 10, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Laichong Zhong, Yun Li, Anliang Yang, Wei Xiong
  • Patent number: 10830950
    Abstract: An optical transmitter-receiver includes an optical integrated device in which at least an optical modulator and an optical detector are integrated as optical devices over the same substrate and an insulating layer is provided between the optical modulator and the substrate and between the optical detector and the substrate, and an electronic circuit chip that is connected to the optical integrated device and includes an electronic circuit including a ground wiring line. The optical integrated device includes a shield electrode between the optical modulator and the optical detector, and the shield electrode is provided sandwiching the insulating layer with the substrate to configure a capacitance and is connected to the ground wiring line of the electronic circuit chip.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: November 10, 2020
    Assignees: FUJITSU LIMITED, PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION
    Inventors: Shinsuke Tanaka, Tatsuya Usuki
  • Patent number: 10831043
    Abstract: A silicon based electro-optically active device and method of producing the same, the device comprising: a silicon-on-insulator (SOI) waveguide; an electro-optically active stack within a cavity of the SOI waveguide, wherein the electro-optically active stack is separated from an insulator layer of the electro-optically active device by a seed layer; and a channel between the electro-optically active stack and the SOI waveguide; wherein the channel is filled with a filling material with a refractive index greater than that of a material forming a sidewall of the cavity to form a bridge-waveguide in the channel between the SOI waveguide and the electro-optically active stack.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 10, 2020
    Assignee: Rockley Photonics Limited
    Inventors: Guomin Yu, Yi Zhang, Aaron Zilkie
  • Patent number: 10822262
    Abstract: An optical fiber with multiple openings made from the steps comprising fabricating an extrusion die using at least one additive manufacturing technique such that the extrusion die has a first set of plurality of channels that combine inside the die into a second set of plurality of channels with a different set of shapes and sizes, extruding a glass through the extrusion die, forming a fiber optic preform having a plurality of longitudinal openings that run the entire length of the fiber optic preform, attaching a barrier layer to the fiber optic preform to form a series of channels to which pressure can be applied by a gas, wherein each channel has a pressure that is independently controlled, and stretching the fiber optic preform at an elevated temperature into an optical fiber with multiple openings.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: November 3, 2020
    Assignee: 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
  • Patent number: 10816721
    Abstract: A hollow-core fiber with a single layer of robust anti-resonant optical arches is disclosed, which is designed and made of infrared soft glass and allows the transmission of mid- to long-infrared wavelengths (1-15 microns). Each curved arch is solidly attached at two locations on the outer solid region surface and together the arches define the core diameter. The thickness and spacing between the arches are selected to minimize the fiber transmission loss <1 dB/m at wavelengths in the mid- to long-infrared where the infrared soft glass has high absorption >30 dB/m. A hollow-core preform with anti-resonant arches is made by extrusion of infrared soft glasses through a die specifically designed to produce the hollow-core fiber with anti-resonant arches.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: October 27, 2020
    Assignee: IRFlex Corporation
    Inventors: Francois Chenard, Oscas Alvarez
  • Patent number: 10816744
    Abstract: A fiber optic cable includes an optical fiber, a strength layer surrounding the optical fiber, and an outer jacket surrounding the strength layer. The strength layer includes a matrix material in which is integrated a plurality of reinforcing fibers. A fiber optic cable includes an optical fiber, a strength layer, a first electrical conductor affixed to an outer surface of the strength layer, a second electrical conductor affixed to the outer surface of the strength layer, and an outer jacket. The strength layer includes a polymeric material in which is embedded a plurality of reinforcing fibers. A method of manufacturing a fiber optic cable includes mixing a base material in an extruder. A strength layer is formed about an optical fiber. The strength layer includes a polymeric film with embedded reinforcing fibers disposed in the film. The base material is extruded through an extrusion die to form an outer jacket.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: October 27, 2020
    Assignee: CommScope Technologies LLC
    Inventor: Wayne M. Kachmar
  • Patent number: 10809547
    Abstract: A silicon based electro-optically active device and method of producing the same, the device comprising: a silicon-on-insulator (SOI) waveguide; an electro-optically active stack within a cavity of the SOI waveguide; and a channel between the electro-optically active stack and the SOI waveguide; wherein the channel is filled with a filling material with a refractive index greater than that of a material forming a sidewall of the cavity to form a bridge-waveguide in the channel between the SOI waveguide and the electro-optically active stack.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: October 20, 2020
    Assignee: ROCKLEY PHOTONICS LIMITED
    Inventors: Guomin Yu, Yi Zhang, Aaron Zilkie
  • Patent number: 10802218
    Abstract: An optical device and a method of manufacturing an optical device, including a ridge waveguide second, and a strip-loaded ridge waveguide section, comprises applying two different protective layers and two separate etches at two different depths. The protective layers overlap to protect the same section of the optical device, and to limit the surfaces of optical device to exposure to multiple etches, except at edges where the protective layers overlap.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: October 13, 2020
    Assignee: Elenion Technologies, LLC
    Inventors: Thomas Wetteland Baehr-Jones, Ruizhi Shi
  • Patent number: 10795106
    Abstract: A communication system may include a first chassis having first and second side walls and adapted to slidably receive therein a plurality of cassettes. A first cable hanger assembly may have a first side edge hingedly coupled to the first side wall of the first chassis, the first cable hanger assembly including a plurality of first hangers adapted to support cables thereon. An axis of rotation of the first cable hanger assembly may be substantially orthogonal to a direction in which the plurality of cassettes are slideable. The cable hanger assembly may be rotatable from a first position to a second position so that during rotation from the first position to the second position, the plurality of first hangers move toward front faces of the plurality of cassettes.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: October 6, 2020
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Haiguang Lu, Alla Shtabnaya, Frank Rumore, Patrick Anderson