Patents Examined by Ellen E. Kim
  • Patent number: 10416388
    Abstract: An optical waveguide device includes a substrate in which an optical waveguide is formed. The optical waveguide has a Y-branched structure in which light beams propagating through a main waveguide are branched into two parts, and a three-branched structure in which the optical waveguide is branched into three waveguides including the main waveguide and two sub-waveguides on both sides of the main waveguide at a front stage of the Y-branched structure. The main waveguide includes a linear waveguide portion in which a waveguide width is constant and a tapered waveguide portion in which the waveguide width gradually increases between the three-branched structure and the Y-branched structure.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 17, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yuu Kataoka, Yoichi Hosokawa, Norikazu Miyazaki
  • Patent number: 10416383
    Abstract: Methods and apparatus for concentrating light into a specified focal volume and for collecting light from a specified volume. Incident light is coupled through a plurality of successive transmissive asymmetric microstructure elements. The succession of transmissive asymmetric microstructure elements may be designed by representing an electromagnetic field as a linear combination of eigenmodes of one of the succession of transmissive asymmetric microstructure elements. The asymmetric microstructure elements are represented as a plurality of mesh lattice units and eigenmode solutions to Maxwell's equations are obtained for each mesh lattice unit subject to consistent boundary conditions. S-matrix formalism is employed to calculate a field output and weighting coefficients for the eigenmodes are selected to achieve a specified set of field output characteristics.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: September 17, 2019
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Lynford Goddard, Jinlong Zhu
  • Patent number: 10416382
    Abstract: In an optical waveguide section of an SIS type having a configuration of stacking a second semiconductor layer over a first semiconductor layer with a dielectric layer interposed, the first semiconductor layer is electrically coupled to a first electrode at a first lead-out section where the second semiconductor layer is not stacked. Further, the second semiconductor layer is electrically coupled to a second electrode at a second lead-out section not overlapping with the first semiconductor layer. As a result, when a contact hole for forming the second electrode is formed by dry etching, the dielectric layer between the first semiconductor layer and the second semiconductor layer is not damaged or broken and hence short-circuit failure between the first semiconductor layer and the second semiconductor layer can be prevented. The reliability of the optical waveguide section therefore can be improved.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 17, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yasutaka Nakashiba, Shinichi Watanuki
  • Patent number: 10409001
    Abstract: Embodiments described herein relate to apparatus and methods for display structure fabrication. In one embodiment, a waveguide structure having an input grating structure and an output grating structure is fabricated and a spacer material is deposited on the waveguide. The spacer material is etched from various portions of the waveguide structure and a high refractive index material is deposited on the waveguide. Portions of the spacer material remaining on the waveguide structure are removed leaving the high refractive index material disposed on desired surfaces of the waveguide structure.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 10, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Michael Yu-tak Young, Wayne McMillan, Rutger Meyer Timmerman Thijssen, Robert Jan Visser
  • Patent number: 10401567
    Abstract: An optical fiber mode scrambler adapted to give a determined bending to an optical fiber inserted in the mode scrambler, the mode scrambler having a general extension direction X, the mode scrambler having a morphology adapted to give the optical fiber a direction along X at the entry of the scrambler, and then to bend the fiber to bring the fiber substantially in the X, Y plan in the ?X and Y directions, before bringing the fiber in a rotation around the X axis substantially in the Y, Z plan in the anti clockwise direction for one full rotation, and then bending the fiber to bring the fiber substantially in the X, Y plan in the ?X and ?Y directions, and then bending the fiber to give the optical fiber a direction along X at the exit of the scrambler.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: September 3, 2019
    Assignees: INSERM ( INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE), UNIVERSITÉ DE LILLE, CENTRE HOSPITALIER REGIONAL ET UNIVERSITAIRE DE LILLE (CHRU)
    Inventors: Serge Mordon, Pascal Delepôrte, Nacim Betrouni
  • Patent number: 10403772
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to electrical and optical via connections on a same chip and methods of manufacture. The structure includes an optical through substrate via (TSV) comprising an optical material filling the TSV. The structure further includes an electrical TSV which includes a liner of the optical material and a conductive material filling remaining portions of the electrical TSV.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: September 3, 2019
    Assignee: GLOBALFOUNDRIES INC
    Inventors: Juntao Li, Kangguo Cheng, Chengwen Pei, Geng Wang, Joseph Ervin
  • Patent number: 10393982
    Abstract: A telecommunications box includes a base frame, having generally planar outer walls that form an enclosed loop around an interior volume. The outer walls include first and second sidewalls that are parallel to and spaced apart from one another. A flange adjoins front-facing edge sides of the outer walls and extends away from the outer walls in an opposite direction as the interior volume. A first window, which is partially defined by the front-facing edge sides of the outer walls, exposes the interior volume from a front side of the base frame. A second window, which is partially defined by rear-facing edge sides of the outer walls, exposes the interior volume from a rear side of the base frame. The first window occupies the same footprint in a front-facing position that the second window occupies in a rear-facing position that is rotationally reversed from the front-facing position.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: August 27, 2019
    Assignee: All Systems Broadband, Inc.
    Inventors: James A. Powell, Shawn L. Heeter
  • Patent number: 10386577
    Abstract: A waveguide support and reflector member is provided for optically connecting a first optical component having at least one optical waveguide including an optical axis with a second optical component. The waveguide support and reflector member includes a body having a waveguide retention section and a reflector section. The waveguide retention section is configured to support the first optical component and defines an optical plane along which each optical waveguide is disposed upon positioning the optical component at the waveguide retention section. The reflector section has an optical reflector surface aligned with the optical plane and is configured to optically connect the at least one optical waveguide with the second optical component. An optical assembly incorporating a waveguide support and reflector member and a sheet metal blank for forming a waveguide support and reflector member are also provided. An in-line waveguide support and alignment member is further provided.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: August 20, 2019
    Assignee: Molex, LLC
    Inventors: Malcolm H. Hodge, Calob Lostutter, Daniel Tillotson, Eric A. Deichmann
  • Patent number: 10386590
    Abstract: One example of a multi-chip module includes a substrate, a semiconductor chip, and an optical transceiver. The substrate has a first side and a second side opposite the first side. The semiconductor chip is electrically coupled to the first side of the substrate. The optical transceiver is electrically coupled to the second side of the substrate.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: August 20, 2019
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin Leigh, George Megason, John Norton
  • 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
  • Patent number: 10371902
    Abstract: An exemplary embodiment of a device, configurable with various indicia of connectivity, and to be received by a data communication station is disclosed. The data communication station may include a frame having an aperture formed therein and a blank insert configured to be in registered alignment with the aperture. The blank insert may include a front facing surface configured to receive indicia thereon. The blank insert may include a retention feature configured to engage with an identification icon. In another embodiment, the data communication station may include a frame, a connector housing insert, and an identification icon configured to receive connectivity indicia thereon, wherein the connector housing insert may include a retention feature to engage with a corresponding retention feature on the identification icon. In another embodiment, a data communication station is configured to directly receive and retain an identification icon configured to receive connectivity indicia thereon.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: August 6, 2019
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Dean Lipke, Jennifer Yanni, William Lauby, Charles Bragg
  • Patent number: 10359652
    Abstract: An E/O phase modulator may include a waveguide having an insulating substrate, a single-crystal silicon strip and a polysilicon strip of a same thickness and doped with opposite conductivity types above the insulating substrate, and an insulating interface layer between the single-crystal silicon strip and polysilicon strip. Each of the single-crystal silicon strip and polysilicon strip may be laterally continued by a respective extension, and a respective electrical contact coupled to each extension.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 23, 2019
    Assignee: STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Charles Baudot, Maurin Douix, Frederic Boeuf, Sébastien Cremer
  • Patent number: 10355452
    Abstract: An optical module includes a light source; a demultiplexer configured to demultiplex a light into a transmission light and a local light; an optical modulator; an excitation light source; an optical waveguide substrate that includes: a polarization beam splitter configured to split a reception light into an X-polarized component and a Y-polarized component, a beam splitter, a pair of optical hybrid circuits configured to cause the X-polarized component and the Y-polarized component to interfere with the local light split by the beam splitter, a pair of local light waveguides configured to couple the beam splitter and the pair of optical hybrid circuits, a pair of reception light waveguides configured to couple the polarization beam splitter and the pair of optical hybrid circuits, wherein the pair of local light waveguides and the transmission light waveguide are doped with a rare-earth ion that amplifies a light when the excitation light is introduced.
    Type: Grant
    Filed: July 15, 2018
    Date of Patent: July 16, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Miki Onaka
  • Patent number: 10330868
    Abstract: The loopback apparatus disclosed herein is used with an optical fiber system having an optical fiber cable. The loopback apparatus includes an optical fiber having input and output ends and an output optical fiber having input and output ends. The loopback apparatus also includes an optical system that defines an optical path and that is configured to optically couple the output end of the input optical fiber with the input end of the output optical fiber over the optical path. The loopback apparatus also includes a thin-film filter disposed in the optical path and configured to provide a select amount of attenuation for light traveling over the optical path. The loopback apparatus can be plugged into and unplugged from the optical fiber cable. Loopback methods for measuring the performance of the optical fiber system using the loopback apparatus are also disclosed.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 25, 2019
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Yao Li, Chen Xia, Shiping Zhang
  • Patent number: 10317635
    Abstract: An optical communication cable and related systems and methods are provided. The optical cable includes a plurality of wrapped core elements, and the outer surfaces of adjacent wrapped core elements are joined together by discrete bond sections. The discrete bonds sections may be structures such as laser welds, ultrasonic welds, or adhesive material. The discrete bonds hold the wrapped core elements together in the wrapped pattern, such as an SZ stranding pattern.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: June 11, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Anne Germaine Bringuier, Joel Patrick Carberry, David Wesley Chiasson, Anping Liu, Barada Kanta Nayak
  • Patent number: 10317584
    Abstract: A grating coupler and a preparation method thereof are provided. The grating coupler includes a substrate layer, a lower confining layer, a waveguide core layer, and an upper confining layer that are sequentially arranged. The waveguide core layer includes a submicron waveguide, a first tapered waveguide, and a waveguide array. The waveguide array includes at least two waveguide groups, the waveguide group includes at least one waveguide chain, the waveguide chain includes at least two waveguides that have different widths, and the waveguides in the waveguide chain are connected to each other. An end of the waveguide chain in the waveguide array is connected to a wide end of the first tapered waveguide, and a narrow end of the first tapered waveguide is connected to the submicron waveguide.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: June 11, 2019
    Assignee: HUAWEI TECHNOLOGIES, CO., LTD.
    Inventors: Ming Li, Xin Tu, Hongyan Fu
  • Patent number: 10310206
    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: March 12, 2018
    Date of Patent: June 4, 2019
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Haiguang Lu, Alla Shtabnaya, Frank Rumore, Patrick Anderson
  • Patent number: 10310271
    Abstract: Systems, devices, and methods that implement waveguides in curved transparent combiners that are well-suited for use in wearable heads-up displays (WHUDs) are described. Curved transparent combiners employ an optical lens or optical lens blank with a waveguide or light guide embedded therein and with low refractive index materials interposed between one or more major surfaces of the waveguide and the optical lens or blank to facilitate total internal reflection while the waveguide is embedded in the lens. The curved transparent combiners may optionally include in-couplers and/or out-couplers to provide transparent combiners that substantially match a shape, size, and geometry of conventional eyeglass lenses and can, in some implementations, embody prescription curvatures to serve as prescription eyeglass lenses. The waveguides and in-/out-couplers are planar or curved depending on the implementation. WHUDs that employ such curved transparent combiners are also described.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 4, 2019
    Assignee: North Inc.
    Inventors: Shreyas Potnis, Timothy Paul Bodiya, Stefan Alexander
  • Patent number: 10310299
    Abstract: A substrate (102) having a piezoelectric effect, optical waveguides (138a, 140a, 138b, 140b, and the like) formed on the substrate, and a plurality of bias electrodes (152a, 152b, and the like) that control an optical wave (s) which propagate through the optical waveguides are provided, and the bias electrodes are constituted and/or disposed such that an electrical signal applied to one of the bias electrodes is prevented from being received by another one of the bias electrodes through a surface acoustic wave.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: June 4, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Toru Sugamata
  • Patent number: 10295734
    Abstract: Disclosed is an optical fiber which includes a core including silica with a core diameter and having at least two dopants, a maximum relative refractive index delta of at least 0.7% and an alpha value in the range of 1.9-2.2. The core has a refractive index profile configured to transmit light in a multimode propagation at a first wavelength ?1 in the range of 800-1100 nm and to propagate light in a LP01 mode at a second wavelength ?2. The second wavelength ?2 is greater than 1200 nm. The optical fiber is structured to have a LP01 mode field diameter in the range of 8.5-12.5 ?m at 1310 nm.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 21, 2019
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Xin Chen, John Douglas Coleman, Ming-Jun Li