Patents Examined by Erin Chiem
  • Patent number: 10234648
    Abstract: A fiber optic enclosure assembly includes a housing having an interior region and a bearing mount disposed in the interior region of the housing. A cable spool is connectedly engaged with the bearing mount such that the cable spool selectively rotates within the housing. A termination module disposed on the cable spool so that the termination module rotates in unison with the cable spool. A method of paying out a fiber optic cable from a fiber optic enclosure includes rotating a cable spool, which has a subscriber cable coiled around a spooling portion of the cable spool, about an axis of a housing of the fiber optic enclosure until a desired length of subscriber cable is paid out. A termination module is disposed on the cable spool.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: March 19, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Scott C. Kowalczyk, Jonathan Walter Coan, Jonathan R. Kaml
  • Patent number: 10228510
    Abstract: The invention concerns a Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and comprises a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region comprises a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF comprises hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further comprises a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.<Th<250° C.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: March 12, 2019
    Assignee: NKT PHOTONICS A/S
    Inventors: Thomas Tanggaard Alkeskjold, Casper Laur Byg, Christian Jakobsen, Jens Kristian Lyngsøe, Kim G. Jespersen, Jeppe Johansen, Martin Dybendal Maack, Martin Erland Vestergaard Pedersen, Carsten L. Thomsen
  • Patent number: 10228605
    Abstract: A waveguide optical element which includes a plurality of optical waveguides provided on a substrate having an electro-optic effect includes: a plurality of signal electrodes controlling light waves propagating through the optical waveguides; and a plurality of ground electrodes provided so as to interpose each of the signal electrodes therebetween, in which at least one of the ground electrodes includes a first layer and a second layer formed on the first layer, the second layer is formed such that a distance between the second layer and the signal electrode adjacent to the second layer is larger than a distance between the first layer and said signal electrode adjacent to said second layer, and a thickness of the ground electrode which includes the first layer and the second layer is 25 ?m or more.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 12, 2019
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Yoichi Hosokawa, Toru Sugamata
  • Patent number: 10209517
    Abstract: An eye tracker having a first waveguide for propagating illumination light along a first waveguide path and propagating image light reflected from at least one surface of an eye along a second waveguide path. At least one grating lamina for deflecting the illumination light out of the first waveguide path towards the eye and deflecting the image light into the second waveguide path towards a detector is disposed adjacent an optical surface of the waveguide.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: February 19, 2019
    Assignee: DigiLens, Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
  • Patent number: 10209476
    Abstract: A surface-mounted fiber segment includes at least one bare optical fiber glass segment disposed onto a receiving surface, and an adhesive material applied to the at least one bare optical fiber glass segment. The adhesive material substantially encapsulates the at least one bare optical fiber glass segment and adheres the at least one bare optical fiber glass segment onto the receiving surface.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: February 19, 2019
    Assignee: Google LLC
    Inventors: Chad Johnston, Enrique Gonzalez Lopez
  • Patent number: 10209464
    Abstract: An optical transmitter may include a chip stack that includes an electrical IC that is mounted using solder balls to a photonic chip. These solder connections permit the electrical IC and the photonic chip to communicate. In addition, the transmitter may include a PCB coupled to the stack so that electrical signals in the PCB are transmitted to the IC and photonic chip (and vice versa). Instead of coupling the PCB to the stack using wire bonds attached to pads on a surface of the photonic chip, at least a portion of the PCB is disposed between the photonic chip and electrical IC. The PCB may also include bond pads used to form a direct solder connection to the electrical IC. As such, the electrical IC may include direct solder connections to both the PCB and the photonic chip.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: February 19, 2019
    Assignee: Cisco Technology, Inc.
    Inventors: Stefan Martin Pfnuer, Matthew Joseph Traverso, Bipin Dama
  • Patent number: 10203463
    Abstract: A consumable cored wire for measuring a temperature of a molten steel bath includes an optical fiber and a cover laterally surrounding the optical fiber in a plurality of layers. One layer is a metal pipe, also called metal jacket or metal tube. An intermediate layer, also called filler, is arranged beneath the metal tube. The intermediate layer is a rope.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: February 12, 2019
    Assignee: Heraeus Electro-Nite International N.V.
    Inventors: Martin Kendall, Robert Charles Whitaker, Marc Straetemans, Jack Childs, Dominique Feytongs
  • Patent number: 10194788
    Abstract: A lens group for an endoscope or microscope, comprising one or more lens elements, each of uniform refractive index, adapted to: i) focus, with high wavefront aberration correction, driving or excitation light received from an exit tip of an optical waveguide (such as an optical fiber) located substantially against a proximal surface of the lens group to a point observational field with narrow point spread function beyond a distal surface of the lens group (such as outside an optical window located distally relative to the distal surface); and ii) transmit, with high wavefront aberration correction, fluorescence or reflected return light received by the distal surface from the point observational field (and its neighborhood defined by the fluorescence wavelength point spread function) back to the exit tip of the optical waveguide at the fluorescence wavelength.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: February 5, 2019
    Assignee: OPTISCAN PTY LTD.
    Inventor: Roderick William Charles Vance
  • Patent number: 10197735
    Abstract: An apparatus for coupling an optical fiber embedded within a member to a waveguide is disclosed. The embedded optical fiber has a core and a cladding surrounding the core. A block includes an engagement surface for positioning adjacent the member to facilitate removal of a portion of the cladding surrounding the core of the embedded optical fiber, a monitoring region adjacent which a portion of a waveguide is positioned, and a waveguide having a first section positioned at the monitoring region and a second section configured to be connected to an optical measuring element for measuring a transmission through passing through the waveguide.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: February 5, 2019
    Assignee: Molex, LLC
    Inventor: Malcolm H. Hodge
  • Patent number: 10197752
    Abstract: Methods and apparatus are provided for a monolithic multi-optical-waveguide penetrator or connector. One example apparatus generally includes a plurality of large diameter optical waveguides, each having a core and a cladding, and a body having a plurality of bores with the optical waveguides disposed therein, wherein at least a portion of the cladding of each of the optical waveguides is fused with the body, such that the apparatus is a monolithic structure. Such an apparatus provides for a cost- and space-efficient technique for feedthrough of multiple optical waveguides. Also, the body may have a large outer diameter which can be shaped into features of interest, such as connection alignment or feedthrough sealing features.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: February 5, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventor: Thomas W. F. Engel
  • Patent number: 10191227
    Abstract: A fiber optic connector includes at least one ferrule configured to support at least one optical fiber, an inner connector body having a front end from which the at least one ferrule extends, a latch arm extending outwardly from the inner connector body, and a handle. The handle has a housing portion in which the inner connector body is at least partially received and a grip portion extending rearwardly from the housing portion. The handle can move relative to the inner connector body so that the housing portion can cause the latch arm to flex toward the inner connector body.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: January 29, 2019
    Assignee: Alliance Fiber Optics Products, Inc.
    Inventor: Jhih-Ping Lee
  • Patent number: 10191234
    Abstract: A method of aligning an optical fiber with an optical component in a micro-optical sub-assembly, comprises: providing a groove in the micro-sub-assembly in alignment with the optical component; and placing the optical fiber in the groove, thereby aligning the optical fiber with the optical component. In this way a placement tool with an accuracy of 50 microns can be used to place an optical fiber with an alignment accuracy of one micron.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: January 29, 2019
    Assignee: OTX Ltd.
    Inventor: Eli Benoliel
  • Patent number: 10191213
    Abstract: Methods and structures for shielding optical waveguides are provided. A method includes forming a first optical waveguide core and forming a second optical waveguide core adjacent to the first optical waveguide core. The method also includes forming an insulator layer over the first optical waveguide core and the second optical waveguide core. The method further includes forming a shielding structure in the insulator layer between the first optical waveguide core and the second optical waveguide core.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: January 29, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: John J. Ellis-Monaghan, Jeffrey P. Gambino, Mark D. Jaffe, Kirk D. Peterson, Jed H. Rankin
  • Patent number: 10191222
    Abstract: An optical connector apparatus includes a connector which is connected to an electro-optical composite cable including an optical fiber and a metal conductor, and a connection object to be connected. The connector is provided with a ferrule which has a conductive portion on at least a part of the surface thereof. The connection object to be connected is provided with an electrically conductive connection member to be connected to the ferrule. The ferrule and the cable are connected by a crimping structure. When the ferrule is inserted in the connection member, the connector and the connection object to be connected are electrically and optically connected to each other.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: January 29, 2019
    Assignee: JAPAN AVIATION ELECTRONICS, INDUSTRY, LIMITED
    Inventor: Osamu Hashiguchi
  • Patent number: 10185089
    Abstract: A method for splicing a first optical fiber ribbon cable to a second optical fiber ribbon cable includes separating an end of the first optical fiber ribbon cable into loose optical fibers, and re-ribbonizing the loose optical fibers into a ribbonized end having a second pitch different from the first pitch of the original first optical fiber ribbon cable. The method further includes inserting the ribbonized end into a mass fusion splicer having the second pitch, and splicing the ribbonized end to the end of the second optical fiber ribbon cable using the mass fusion splicer.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: January 22, 2019
    Assignee: OFS FITEL, LLC
    Inventors: Denis E Burek, Yue Liang, Heng Ly
  • Patent number: 10175426
    Abstract: An adapter is cylindrical and includes a first groove and a locking structure. The first groove is adjacent to an inner peripheral surface at one end of the adapter. The first groove extends in an axial direction of the adapter and turns in a circumferential direction. The locking structure is disposed in a circumferential direction at an outer peripheral surface at other end of the adapter. An optical plug includes an elastic member and a stopper. The elastic member is at a rear end of a holder. The stopper includes an annular portion that is in contact with the elastic member and arm portions bent toward the front end from an outer periphery of the annular portion. Each of the arm portions includes a hook at a front end of the stopper. The hook is configured to be locked into the adapter. The optical plug is attached via the adapter.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: January 8, 2019
    Assignee: Kyocera Corporation
    Inventor: Michifumi Shouda
  • Patent number: 10151885
    Abstract: An optical connector apparatus includes a connector which is connected to an electro-optical composite cable including an optical fiber and a metal conductor, and a connection object to be connected. The connector is provided with a ferrule which has a conductive portion on at least a part of the surface thereof. The connection object to be connected is provided with an electrically conductive connection member to be connected to the ferrule. The ferrule and the cable are connected by a crimping structure. When the ferrule is inserted in the connection member, the connector and the connection object to be connected are electrically and optically connected to each other.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: December 11, 2018
    Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Hideto Shimazu, Osamu Hashiguchi
  • Patent number: 10133149
    Abstract: A waveguide includes an array of p-i-n junctions formed by ions implanted into the waveguide. The p-i-n junctions concentrate electric fields applied on the waveguide to convert the third order susceptibility ?(3) into the second order susceptibility ?(2) and induce the DC Kerr effect. The periodic electrical fields concentrated by the p-i-n junctions effectively create a wave vector, which together with the wave vectors of optical beams in the waveguide satisfies phase matching conditions for nonlinear optical effects. The phase matching can significantly enhance the efficiency of the nonlinear optical effects, such as second harmonic generation, sum frequency generation, difference frequency generation, and four-wave mixing. Waveguides with arrays of PIN junctions can also be used in phase modulators, amplitude modulators, and filters.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: November 20, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Erman Timurdogan, Michael R. Watts
  • Patent number: 10126572
    Abstract: A photonic platform based polarization controller providing a fixed target polarization is disclosed. The polarization controller has a polarization rotator splitter splitting the beam into first and second feeds corresponding to first and second orthogonal polarization components. A first Mach-Zehnder interferometer (MZI) stage provides a first phase delay between the first and second feeds based on a first control signal, and a first mixer mixes the first and second feeds to provide third and fourth feeds. A second MZI stage provides a second phase delay between the third and fourth feeds based on a second control signal, and a second mixer mixes the third and fourth feeds to provide fifth and sixth feeds. A third MZI stage provides a third phase delay between the fifth and sixth feeds based on a third control signal, and a third mixer mixes the fifth and sixth feeds to provide the fixed target polarization. An optical tap splits a portion of the beam.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: November 13, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chunshu Zhang, Jia Jiang, Dominic John Goodwill, Patrick Dumais
  • Patent number: 10114179
    Abstract: An optical connector is an optical connector that is connected to another connector in a predetermined connection direction. The optical connector includes a ferrule that includes insertion holes into which guide pins to be connected to another connector are to be inserted; and a pin keeper 20 that is provided on a side of the ferrule opposite to the another connector and includes retaining holes 21 retaining the guide pins inserted into the insertion holes. The pin keeper 20 includes a pair of side portions 22 in which the retaining holes 21 are formed, and a bottom portion 23 that connects end portions of the pair of side portions 22. The retaining holes 21 are formed in a shape in which inside surfaces of the side portions 22 facing each other are notched.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 30, 2018
    Assignee: SEI OPTIFRONTIER CO., LTD.
    Inventors: Tsutomu Kamada, Kenichiro Ohtsuka, Motoyoshi Kimura, Tatsuhiko Shitomi