Patents Examined by Guy Anderson
  • Patent number: 10025018
    Abstract: An arrangement (20) for coupling light into a plate-like light guide (25) having two surfaces (23, 24) on opposite sides of the light guide comprises an in-coupling diffraction grating (21) for diffracting an external light beam (26) incident on said in-coupling diffraction grating into the light guide in a direction enabling the in-coupled light beam to propagate within the light guide via total internal reflections at the light guide surfaces (23, 24). According to the present invention, the arrangement further comprises a deflection member (22) arranged to deflect the beam (27) initially diffracted by the in-coupling diffraction grating (21), before it hits the in-coupling diffraction grating again, out of the path determined by the in-coupling diffraction grating in order to reduce out-coupling of the already in-coupled light through the in-coupling diffraction grating.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: July 17, 2018
    Assignee: NANOCOMP OY LTD
    Inventors: Markku Kuittinen, Pasi Laakkonen
  • Patent number: 10012809
    Abstract: An apparatus and method of assembly are described that provide an improved printed circuit board (PCB) assembly for an electro-optical interface, where more accurate positioning and alignment of electro-optical components can be achieved in an active part of the PCB assembly that is used for the electro-optical interface to meet tighter tolerances in an easier and more cost efficient manner. In particular, a photonic integrated circuit (PIC) is received in a cavity defined in a PCB that includes conductive elements for transmitting electrical signals. An optoelectronic transducer is connected to the PIC to convert between the optical signals and the corresponding electrical signals, and an optical coupler is secured to the optoelectronic transducer and supported by the PIC and/or PCB, where the optical coupler is configured to transmit the optical signals between the optoelectronic transducer and an optical fiber.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: July 3, 2018
    Assignee: Mellanox Technologies, LTD.
    Inventors: Elad Mentovich, Itshak Kalifa, Sylvie Rockman, Pierre Avner Badehi, Anna Sandomirsky, Evelyn Landman
  • Patent number: 10007061
    Abstract: A method of fabricating an optical coupling device, comprising forming a waveguide mask layer on a substrate platform, wherein the waveguide mask layer comprises an array of openings comprising a first end and a second end opposite to the first end, immersing the substrate platform into a salt melt comprising ions to form an array of waveguides in the substrate platform through an ion diffusion process, and controlling a rate of immersion such that a diffusion depth of the ions varies as a function of a distance in a direction from the first end to the second end, wherein the array of waveguides extends in the direction from the first end to the second end.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: June 26, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Jia Jiang
  • Patent number: 10007167
    Abstract: In photonic integrated circuits implemented in silicon-on-insulator substrates, non-conductive channels formed, in accordance with various embodiments, in the silicon device layer and/or the silicon handle of the substrate in regions underneath radio-frequency transmission lines of photonic devices can provide breaks in parasitic conductive layers of the substrate, thereby reducing radio-frequency substrate losses.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: June 26, 2018
    Assignee: Aurrion, Inc.
    Inventors: John Parker, Gregory Alan Fish, Brian R. Koch
  • Patent number: 10001617
    Abstract: Fiber management assembly comprises an optical fiber splitter, a splice holding section having a fiber splice device mounted therein, and a slack storage system. The optical fiber splitter, splice holding section and slack storage system are disposed on one of a tray and an interior surface of an enclosure body. In addition, patch panel tray having a patch panel comprising a plurality of adapters mounted thereon is provided, wherein a bare end of a splitter input fiber is routed via the slack storage system to a first end of the splice device, and wherein pre-connectorized splitter output fibers are routed to different adapters of the plurality of adapters.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: June 19, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: William J. Clatanoff, Zachary M. Thompson, Donald K. Larson
  • Patent number: 10001693
    Abstract: A light communication device further includes a rigid substrate, a package, and a flexible substrate. The rigid substrate includes a first terminal arranged on a surface thereof and a second terminal having a first hole opened at the surface. The package includes a third terminal and a fourth terminal being provided on a side wall thereof and being electrically coupled to a signal electrode and a ground electrode of the signal processor, respectively. The flexible substrate includes a fifth terminal and a sixth terminal being electrically coupled to the third terminal and the fourth terminal, respectively. The fifth terminal is electrically coupled to the first terminal on the surface, and the sixth terminal, with being placed into the first hole, is electrically coupled to the second terminal.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: June 19, 2018
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventors: Masaki Sugiyama, Akira Ishii, Norihisa Naganuma, Eiichi Kodera
  • Patent number: 9989699
    Abstract: An optical fiber comprising: (i) a core region comprising an outer radius r1, and 3.0?r1?7.0 microns and a relative refractive index ?1max and 0.32%??1max?0.5%; (b) a depressed index cladding region surrounding the core region comprising an outer radius r3 and a relative refractive index ?3 less than ?0.2%, and trench volume V3 wherein 45% ?-micron2?|V3|?200% ?-micron2; (c) a first outer cladding region surrounding the depressed index cladding region and comprising a relative refractive index ?4 and an outer radius r4; and (d) a second outer cladding layer comprising 5 wt %-20 wt % titania, a relative refractive index ?5, and a thickness TM, wherein 3 micron?TM?30 microns, and outer radius r5?65 microns; the optical fiber has a mode field diameter MFD1550 and 8 microns?MFD1550?10.5 microns, a cutoff wavelength ?1550 nm when bent 1 turn around a 2.5 mm radius mandrel, and a bending loss at 1550 nm when using a mandrel comprising a radius of 2.5 mm of ?1.0 dB/turn.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: June 5, 2018
    Assignee: Corning Incorporated
    Inventors: Kevin Wallace Bennett, Dana Craig Bookbinder, Douglas Llewellyn Butler, Ming-Jun Li, Pushkar Tandon
  • Patent number: 9989721
    Abstract: A system for connecting a fiber optic cable to a laminate has a clip which attaches to a cover on the circuit board. The clip supports ferrules which are connected to a photonic device on the board. The clip has a backplane which supports retainers which hold the ferrules. The clip also has mating attachments for connecting to the cover. The cover additionally serves as a heat dissipator, which can include heat from the photonic device. An adapter is connected to the cover and receives the ferrules supported by the clip. The adapter connects to a standard connector, such as an LC connector. The adapter can be positioned at the edge of the laminate, or can be attached at an angle extending from an interior region of a circuit board to which the laminate is mounted.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: June 5, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tymon Barwicz, Edward Lindsey Kimbrell, Theodore William Lichoulas
  • Patent number: 9977187
    Abstract: Various embodiments of an integrated polarization rotator-splitter/combiner apparatus are described. An integrated polarization rotator-splitter apparatus may include an input waveguide section, a polarization rotator section, a polarization splitter section and an outgoing waveguide section, which can also be reversely connected as a polarization rotator-combiner.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: May 22, 2018
    Assignee: SIFOTONICS TECHNOLOGIES CO., LTD.
    Inventors: Tuo Shi, Changhua Chen, Yongbo Shao, Dong Pan
  • Patent number: 9977195
    Abstract: Multi-fiber ferrules may be produced with tapered bodies and guide pin holes that have fluted internal surfaces with projections for engaging the guide pins, and channels for capturing any foreign material that may accumulate on or around the guide pins, thereby providing improved consistency in fiber connections during mating of the ferrules.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 22, 2018
    Inventors: Kazuyoshi Takano, Jimmy Jun-Fu Chang
  • Patent number: 9971119
    Abstract: An optical interface includes a rack mountable enclosure that includes multiple slots for retaining multiple insertable fiber optic (FO) modules. The FO modules include a first set of interconnection ports that connect to remote radio units (RRUs), a second set of interconnection ports that connect to a baseband unit (BBU), and a third set of monitoring ports that connect to monitoring/text equipment. The FO modules contain fiber splitters that split off uplink/receive and downlink/transmit signals carried on optical fibers to the third set of monitoring ports. The FO modules may insert in different orientations and directions into different rack mountable enclosure configurations for higher density and more configurable connectivity. A splitter holder is located within the FO module and provides improved optical fiber routing for more integrated module port interconnectivity.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: May 15, 2018
    Assignee: RAYCAP INTELLECTUAL PROPERTY LTD.
    Inventors: Konstantinos Bakatsias, Elias Gonalakis, Charis Coletti, Eleni Dimou
  • Patent number: 9971117
    Abstract: A rack cabling system including a rack having mounted thereon a first hardware component and a patch panel housing mounted on the rack adjacent the first hardware component. The patch panel housing populates no more than a three rack unit (RU space), the patch panel housing including a first end having cable pathway openings and a second end having connector elements mounted therein. The patch panel may have a first cable pathway opening located adjacent the first side of the housing and defining a primary position and a first connector element mounted on the second end and the first connector element having a first position corresponding to the primary position of the first cable pathway opening. Cable harnesses axe routed with less than three bends of the cables between the first hardware component and the patch panel housing, so the first cable harness is terminated at the first connector element in the first position.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: May 15, 2018
    Assignee: Methode Electronics, Inc.
    Inventors: Michael R Carter, David E Hildreth, Robert C. Neumann, Tyler M. Miller
  • Patent number: 9971088
    Abstract: An optical subassembly includes a thru optical via (104) formed through a semiconductor substrate (102), an optoelectronic component (108) secured to the substrate (102) such that an active region (106) of the optoelectronic component is aligned with the thru optical via (104), and circuitry (110) formed into the substrate (102), the circuitry to connect to and operate in accordance with the optoelectronic component (108).
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: May 15, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Paul Kessler Rosenberg, Michael Renne Ty Tan, Sagi Varghese Mathai, Joseph Straznicky
  • Patent number: 9952372
    Abstract: A luminaire includes a housing, an optical waveguide disposed in the housing comprising a plurality of light coupling cavities, and a plurality of LEDs disposed in the housing adjacent the plurality of coupling cavities. A mounting apparatus is adapted to mount the luminaire on a roadway stanchion.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: April 24, 2018
    Assignee: CREE, INC.
    Inventors: Kurt S. Wilcox, Nicholas W. Medendorp, Jr., Zongjie Yuan, Andrew Dan Bendtsen, Nathan Snell, Jeremy Sorenson, Brian Kinnune, Craig D. Raleigh
  • Patent number: 9954295
    Abstract: A cabled midplane interconnect system includes a cabled midplane interconnect having a first connection and a second connection. A first circuit board has a third connection configured to be coupled to the first connection. A second circuit board has a fourth connection configured to be coupled to the second connection. The connection orientations are assigned such that a midplane cable, having a plurality of conductors, couples the first connection to the second connection so that none of the plurality of conductors crosses another of the plurality of conductors.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: April 24, 2018
    Assignee: Intel Corporation
    Inventors: Wayne Genetti, Vladimir Tamarkin
  • Patent number: 9946099
    Abstract: Techniques for increasing efficiency of thermo-optic phase shifters using multi-pass heaters and thermal bridges are provided. In one aspect, a thermo-optic phase shifter device includes: a plurality of optical waveguides formed in an SOI layer over a buried insulator; at least one heating element adjacent to the optical waveguides; and thermal bridges connecting at least one of the optical waveguides directly to the heating element. A method for forming a thermo-optic phase shifter device is also provided.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: April 17, 2018
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Gill, Chi Xiong
  • Patent number: 9946016
    Abstract: An apparatus includes a waveguide extending along a light-propagation direction between a light source and a media-facing surface. The waveguide comprises an assistant layer configured to receive light from a light source, truncated with an intermediate bottom cladding layer. A core layer comprises a coupling end configured to receive light from the assistant layer. The coupling end comprises a taper that widens toward the media-facing surface. A near field transducer is disposed proximate the media-facing surface and is configured to receive the light from the core layer.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: April 17, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Chubing Peng, Pierre Asselin, Lien Lee, Karen V. Rud
  • Patent number: 9933577
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to photonics chips and methods of manufacture. A structure includes: a photonics chip having a grated optical coupler; an interposer attached to the photonics chip, the interposer having a grated optical coupler; an optical epoxy material provided between the grated optical coupler of the photonics chip and the grated optical coupler of the interposer; and epoxy underfill material provided at interstitial regions between the photonics chip and the interposer which lie outside of an area of the grated optical couplers of the photonics chip and the interposer.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 3, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Jeffery P. Gambino, Wolfgang Sauter, Christopher D. Muzzy, Charles L. Arvin, Robert Leidy
  • Patent number: 9927584
    Abstract: Described are examples of optical blind-mate connector adaptors, optical blind-mate connectors to blind-mate to the adaptors, and optical blind-mate systems. In various implementations, an optical blind-mate connector adapter may include a sleeve housing and a shutter mounted at an opening of the sleeve housing. The shutter may include a shutter flap to cover the opening in a closed position and a shutter tab to receive a force to move the shutter flap from the closed position to an open position extending away from the sleeve housing.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 27, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin B Leigh, George D Megason, Arlen L Roesner
  • Patent number: 9921358
    Abstract: In one aspect, a display comprises a light source, a film-based lightguide with a light emitting region positioned adjacent to and directing light to an active area of a spatial light modulator in a thickness direction. The film may have a light mixing region positioned between a light input region and the light emitting region. In one aspect the display comprises a guide element having a surface curved in a first plane positioned along a first edge of the spatial light modulator, wherein the film is folded along the curved surface at a first fold such that the first fold positions a portion of the light mixing region above or below the active area, the light mixing region comprises the first fold, and an inner surface of the film in the light mixing region is in contact with and curved along the curved surface of the guide element.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: March 20, 2018
    Assignee: Flex Lighting II, LLC
    Inventors: Anthony Nichol, Zane Coleman