Patents Examined by Michael P. Mooney
  • Patent number: 10353225
    Abstract: The purpose of the present invention is to allow a silicon photonics modulator to be operated at high speed with high frequency by providing an electrode structure for the small multichannel high-density silicon photonics modulator. This electrode structure for a silicon photonics modulator includes, on the planar surface of a silicon substrate, a first layer for forming a plurality of bias electrical wirings, and a second layer formed by aligning each of a plurality of ground electrode portions and each electrical wiring in the first layer.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: July 16, 2019
    Assignee: PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION
    Inventors: Kenichiro Yashiki, Yasuyuki Suzuki
  • Patent number: 10353163
    Abstract: A fiber optic node includes an electronics equipment enclosure. The electronics equipment enclosure includes a lid, a base, and at least one side wall defining an interior space of the electronics equipment enclosure. The fiber optic node further includes an optical receiver mounted within the interior space of the electronics equipment enclosure. The at least one side wall is coupled to the lid, the base, or both the lid and the base. The at least one side wall is formed of at least a semi-permeable fabric mesh. The semi-permeable fabric mesh includes a rigid mesh screen and a semi-permeable membrane coupled to the rigid mesh screen for convection of heat generated within the interior space by the optical receiver to outside the electronics equipment enclosure.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: July 16, 2019
    Assignee: ARRIS Enterprises LLC
    Inventors: William Turner Hanks, Jeffrey Joseph Howe
  • Patent number: 10353156
    Abstract: Multi-fiber, fiber optic cable assemblies may be configured so that the terminal ends of the cables have pre-assembled back-post assemblies that include pre-assembled ferrules, such as MPO ferrules that meet the requisite tolerances needed for fiber optic transmissions. To protect the pre-assembled components from damage prior to and during installation, pre-assembled components may be enclosed within a protective housing. The housing with pre-assembled components may be of a size smaller than fully assembled connectors so as to be sized to fit through a conduit. The remaining connector housing components for the multi-fiber connectors may be provided separately and may be configured to be attached to the back-post assembly after installation of the cable.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: July 16, 2019
    Assignee: Clearfield, Inc.
    Inventors: John Paul Hill, Walter E. Power, Yuki Nishiguchi
  • Patent number: 10345515
    Abstract: The purpose of the present invention is to provide a bonded structure, a method for manufacturing the same, and a bonding state detection method which are capable of determining whether or not members are bonded together appropriately. A bonded structure 10 includes a laminated sheet 12A, a laminated sheet 12B, an adhesive 14 that bonds the laminated sheet 12A and the laminated sheet 12B together, and a distributed optical fiber 16 sandwiched between the laminated sheet 12A and the laminated sheet 12B. The cross-sectional shape of the distributed optical fiber 16 is deformed in accordance with the bonding state.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: July 9, 2019
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Nozomi Saito, Takayuki Shimizu, Toshio Abe, Shu Minakuchi, Nobuo Takeda, Yutaka Terada
  • Patent number: 10345541
    Abstract: To provide a receptacle and a connector set, and a method of fabricating the receptacle with which the occurrence of fabrication variation of the positional relationship between a positioning portion or a positioning surface and a lens can be suppressed. The receptacle is a resin member formed by a first half of a mold and a second half of the mold to be mated with the first half of the mold. At least part of a first positioning portion, at least part of a second positioning portion, and a lens are positioned on one side in a direction relative to a parting line formed at a boundary between the first half of the mold and the second half of the mold.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: July 9, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Ryo Watanabe
  • Patent number: 10345523
    Abstract: An optical communication cable and related systems and methods are provided. A method for field terminating an optical fiber of a fiber optic distribution cable includes accessing at least one of a plurality of optical fibers of the distribution cable by creating an access location in the distribution cable, inserting a cutting tool through the access location such that the cutting tool extends longitudinally past the access location a predetermined distance, terminating the at least one of the plurality of optical fibers at the predetermined distance, removing at least a portion of the at least one terminated optical fiber through the access location, and inserting the portion of the at least one terminated optical fiber through a furcation tube premounted on a small access closure device.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: July 9, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Joseph Clinton Jensen, Kenneth Darrell Temple, Jr.
  • Patent number: 10337935
    Abstract: A fiber-optic sensor system includes a structure having a fiber-optic cable operatively connected thereto. The system includes a network controller with an interrogator operatively connected to the fiber-optic cable to receive optical energy indicative of a characteristic of the structure therefrom and convert optical energy to electrical energy and electrical energy to optical energy for data communication. A sensor and/or a data source are operatively connected to the fiber-optic cable through the network controller to transmit data through the fiber-optic cable and receive data therefrom.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: July 2, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Derek Geiger, Marcus D. Cappelli, Jonathan K. Garhart, Avinash Sarlashkar, Andrew Brookhart, Mark W. Davis
  • Patent number: 10330862
    Abstract: Coated optical fibers and uses of such fibers as sensors in high temperature and/or high pressure environments. The coated optical fiber has improved sensing properties at elevated pressure and/or temperature, such as enhanced acoustic sensitivity and/or a reduced loss in acoustic sensitivity. The use of the coated optical fibers in various sensing applications that require operation under elevated pressure and/or temperature, such as, acoustic sensors for various geological, security, military, aerospace, marine, and oil and gas applications are also provided.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 25, 2019
    Assignee: Sonoro, LLC
    Inventors: Michael Racosky, William Briggs, Fred Demetz, John Hull, Seyed Ehsan Jalilian
  • Patent number: 10331009
    Abstract: The present invention is based on a two-dimensional photonic crystal where are inserted defects that originate two waveguides and one resonant cavity. An electromagnetic signal that crosses the device is confined in the interior of the defects, due to the photonic band gap associated with the periodic structure that surrounds it. Its main function is the control of the flux of an electromagnetic signal over a communication channel, blocking (state off) or allowing (state on) the passage of the signal. It also promotes the change in the propagation direction of an electromagnetic signal by an angle of 120 degrees, providing greater flexibility in the design of integrated optical systems. The working principle of the device is based on the excitation of dipole modes in its resonant cavity, accordingly to the application of an external DC magnetic field on the magneto-optical material that constitutes it. In states on and off the magneto-optical material is magnetized and nonmagnetized, respectively.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: June 25, 2019
    Assignee: UNIVERSIDADE FEDERAL DO PARA—UFPA
    Inventors: Victor Dmitriev, Gianni Masaki Tanaka Portela, Raphael Rafsandjani Batista
  • Patent number: 10324031
    Abstract: A photonic processing module (100) comprises a high index-contrast waveguide device comprising a substrate (102), a first layer (104) disposed on the substrate having a first refractive index, and a relatively thin second layer (106) disposed on the first layer. The second layer has a second refractive index providing a high index-contrast with the first layer, and the device includes at least one thin-ridge waveguide element (108) formed in the second layer which supports a guided mode in a longitudinal direction. An optical input port (110) is configured to direct an input beam into a slab mode of the second layer, the beam being directed to propagate at a predetermined angle ? to the longitudinal direction of the thin-ridge waveguide element. The angle ? is associated with a resonant coupling between the slab mode of the second layer and the guided mode of the thin-ridge waveguide element.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: June 18, 2019
    Assignee: Royal Melbourne Institute of Technology
    Inventors: Arnan Mitchell, Thach G. Nguyen, Kiplimo Yego, Anthony Hope
  • Patent number: 10317622
    Abstract: A right-angle bending waveguide includes a circular-hole-type square-lattice photonic crystal (PhC) and a single compensation scattering rod having a low refractive index. The right-angle bending waveguide is a PhC formed from first dielectric rods having a low refractive index arranged in a background dielectric having a low refractive index according to a square lattice. In the PhC, one row and one column of the first dielectric rods having a high refractive index are removed to form the right-angle bending waveguide. A second dielectric rod having a high refractive index is arranged at a corner of the right-angle bending waveguide. The second dielectric rod is the compensation scattering rod or an air hole. The first dielectric rods are circular rods having the low refractive index or air holes.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: June 11, 2019
    Inventors: Zhengbiao Ouyang, Hao Huang
  • Patent number: 10307341
    Abstract: A feeding tube position confirmation device 102, operable to confirm the position of a predetermined portion of a medical feeding tube in a predetermined portion of a human or animal body, the position confirmation device comprising an optical waveguide 106 dimensioned to be insertable into the lumen of the feeding tube, the optical waveguide having a sensing distal end 108 comprising a distal end material and a sensing material mixed with the distal end material, the sensing material operable to provide a change in optical properties at the distal end 110 of the optical waveguide dependent on the environment to which the sensing distal end 108 of the waveguide is exposed. The sensing material may comprise a reflective material. Methods of manufacture and use of such devices are also described.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: June 4, 2019
    Assignee: NGPod Global Limited
    Inventors: David Raymond Small, John Davies
  • Patent number: 10310194
    Abstract: A positioning mold of optical fiber connector includes a lower mold board and a thin board. The lower mold board includes two positioning pins and at least one through aperture. The thin board is arranged above the lower mold board, and is provided with two first through holes and with at least one optical fiber positioning aperture. The two first through holes correspond to two positioning pins, and the at least one optical fiber positioning aperture to the at least one through aperture. Given such structure, even if optical fiber lines fracture inside of the optical fiber positioning apertures during the work of positioning, the fractured optical fiber lines can be taken out and replaced easily, so as to improve the productivity in manufacturing optical fiber connectors.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 4, 2019
    Inventor: Kow-Je Ling
  • Patent number: 10310196
    Abstract: A portion of an optical waveguide extending laterally within a photonic integrated circuit (PIC) chip is at least partially freed from the substrate to allow physical displacement of a released waveguide end relative to the substrate and relative to an adjacent photonic device also fabricated in the substrate. The released waveguide end may be displaced to modulate interaction between the photonic device and an optical mode propagated by the waveguide. In embodiments where the photonic device is an optical coupler, employing for example an Echelle grating or arrayed waveguide grating (AWG), mode propagation through the coupler may be modulated via physical displacement of the released waveguide end. In one such embodiment, thermal sensitivity of an integrated optical wavelength division multiplexer (WDM) is reduced by displacing the released waveguide end relative to the coupler in a manner that counters a temperature dependence of the optical coupler.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: June 4, 2019
    Assignee: Intel Corporation
    Inventors: David N. Hutchison, Haisheng Rong, John Heck
  • Patent number: 10313023
    Abstract: A component for a quantum communication system, the component comprising: an input section and a decoder section, the input section comprising n waveguides, where n is an integer of at least 2, the decoder section comprising m decoders, where m is an integer of at least 2, each decoder comprising at least one waveguide, the input section and the decoder section being provided on a single substrate such that the waveguides are continuous and integrated between the input section and the decoder section, the waveguides of the input section and the decoder section being arranged such that light pulses enter the waveguides of the decoder section via the waveguides of the input section and the m decoders operate in parallel.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: June 4, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Taofiq Paraiso, Marco Lucamarini, Zhiliang Yuan, Andrew James Shields
  • Patent number: 10302857
    Abstract: A single mode optical fiber including a germania doped silica central core region having outer radius r1 and refractive index ?1, a maximum refractive index ?1max, and 0.32%??1max?0.45%, and a core alpha profile (Core?). In various embodiments, the optical fiber also contains a cladding region including: (i) a second inner cladding region or ring region surrounding the first inner cladding region; or (ii) an inner cladding region or pedestal region surrounding the germania doped silica central core region. The corresponding resultant optical fibers exhibit a 22 m cable cutoff less than or equal to 1260 nm, a macrobending loss at 1550 nm of ?0.75 dB/turn on a 20 mm diameter mandrel, a zero dispersion wavelength, ?0, of 1300 nm??0?1324 nm, and a mode field diameter at 1310 nm of 8.2 microns?MDF1310 nm?9.6 microns.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: May 28, 2019
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Snigdharaj Kumar Mishra, Pushkar Tandon
  • Patent number: 10302975
    Abstract: Mach-Zehnder interferometers comprise heater elements configured to have projections in the plane of optical waveguides positioned such that two adjacent sections of one optical waveguide arms are heated by a common heater element. The heater and at least a substantial section of the heated waveguide segments can be curved. Configurations of an optical waveguide arm can comprise an outer curved heated section, an inner curved heated section, and a loopback waveguide section connecting the outer curved heated section and the inner curved heated section, with average radius of curvature selected to form an open accessible space. Appropriate configurations of the two optical waveguide arms provide for nested configurations of the arms that provide for a compact structure for the interferometer.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: May 28, 2019
    Assignee: NeoPhotonics Corporation
    Inventors: Kenneth McGreer, Calvin Ho
  • Patent number: 10295727
    Abstract: A display device includes a polarizing layer having a polarizing function for reflecting or absorbing light polarized in a stretching direction of a pigment, a first display panel in which the polarizing function is disabled in a first region, a second display panel in which the polarizing function is disabled in a second region, and a light source that emits an illumination light having a polarization direction along the stretching direction or a direction perpendicular to the stretching direction. The first display panel and the second display panel are stacked together to form a display unit. Only the first region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the first display panel. Only the second region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the second display panel.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: May 21, 2019
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Mitsuru Naruse, Hiroshi Yoshida
  • Patent number: 10295759
    Abstract: An optical connector is provided having a ferrule configured to house one or more optical fibers. An inner housing is provided to hold the ferrule and has a distal end in a connection direction and a proximal end in a cable direction. An outer housing at least partially surrounds the inner housing. One or more resilient forward biasing projections extend from one or more of the outer housing or the inner housing for biasing the outer housing towards the distal end of the inner housing. The resilient forward biasing projection may be integrally formed with either the inner housing or with the outer housing.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: May 21, 2019
    Assignee: Senko Advanced Components, Inc.
    Inventors: Yim Wong, Man Ming Ho, Kazuyoshi Takano
  • Patent number: 10295754
    Abstract: A position determination method for determining a position of a point on a flat surface by observing the position of the point and a position of a fiducial portion on the flat surface in an image of a measuring system provided with an imaging optical system using coaxial episcopic illumination is provided. The fiducial portion is in the shape of a pillar at least in the basal portion and provided with an inclined surface surrounding the foot of the pillar. The method includes the steps of determining a position of the outer boundary of the foot from the boundary between the inclined surface and the flat surface in the image; determining the position of the fiducial portion from the position of the outer boundary of the foot; and determining the position of the point with respect to the position of the fiducial portion.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 21, 2019
    Assignee: NALUX CO., LTD.
    Inventors: Takahiro Fujioka, Hironori Horikiri, Katsumoto Ikeda