Patents Examined by Guy Anderson
  • Patent number: 10247892
    Abstract: A transceiver module having a partitioned housing, e.g., a bifurcated or multi-segment housing, is disclosed that allows coupling and alignment of a TOSA arrangement and ROSA arrangement in separate respective portions in order to minimize or otherwise reduce component damage and rework iterations during manufacturing and repair. Technicians may thus perform at least partial assembly and testing of each optical subassembly arrangement in parallel and in relative isolation without necessarily interrupting and/or waiting on completion of the other. In a general sense, each separate portion of the partitioned housing provides a dedicated workspace of about equal dimension for coupling of subassembly components. Each separate portion may lie flat on a tabletop, for instance, which may further simplify manufacturing processes and provide a wide-range of acceptance angles for performing soldering, welding, insertion and coupling of components, visual inspection, fiber routing, and so on.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 2, 2019
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Kai-Sheng Lin, Hsiu-Che Wang, I-Lung Ho
  • Patent number: 10241289
    Abstract: Anchoring an input cable (190) at an input port (123, 223) of an enclosure (110) includes inserting the input cable (190) through an anchor member (151, 251) so that a cable jacket (191) terminates within the anchor member (151, 251) and at least one optical fiber (195) extends outwardly from the anchor member (151, 251). The anchor member (151, 251) is secured to the cable jacket (191) using the sheath (175). A cover (162, 260) is mounted to the anchor member (151, 251) to form a pass-through assembly (150, 250) defining an enclosed region. Material is injected into the enclosed region to fix strength members (197) and/or optical fibers (195) of the input cable (190) to the pass-through assembly (150, 250). The ruggedized pass-through assembly (150, 250) is disposed at a base (120, 220) of the enclosure (110).
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 26, 2019
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Bart Mattie Claessens, Philippe Coenegracht
  • Patent number: 10228525
    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 dissipater, 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 2, 2018
    Date of Patent: March 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Tymon Barwicz, Edward Lindsey Kimbrell, Theodore William Lichoulas
  • Patent number: 10215922
    Abstract: An optical fiber cleaving device comprises a frame provided with cleaving means for cleaving an optical fiber (4) therewith, and first and second (6) fiber clamping arrangements configured to hold a fiber (4) to be cleaved on opposite sides of the fiber cleaving means during cleaving of the fiber (4). The optical fiber cleaving device further comprises first securing means configured to re-movably secure said first clamping arrangement to the frame and second securing means configured to removably secure said second clamping arrangement (6) to the frame.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: February 26, 2019
    Assignee: Nyfors Teknologi AB
    Inventor: Uwe Böttcher
  • Patent number: 10215934
    Abstract: A connector assembly has a male portion and a female portion. The male portion has a pair of electrical contacts and ends of a pair of plastic optical fibers attached. The female portion has a set of through-holes configured to accept the electrical contacts of the male portion and the ends of the plastic optical fibers attached to the male portion such that the plastic optical fibers of the male portion abut plastic optical fibers secured to the female portion within the through-holes of the female portion. In one embodiment, the male portion has a cylindrical shroud configured to accept a cylindrical protrusion on the female portion. The female portion also has a nut rotatably attached with internal threads configured to engage external threads located on the cylindrical shroud of the male portion.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: February 26, 2019
    Assignee: Panduit Corp.
    Inventors: Richard J. Pimpinella, Daniel E. Host, Jose M. Castro
  • Patent number: 10215939
    Abstract: A cable containing at least one optical fiber in a strength member and methods for manufacturing the strength member and cable are provided. A cable may include a cable core and armor wire strength members that surround the cable core. One of the armor wire strength members that surround the cable core contains an optical fiber.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 26, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joseph Varkey, Maria Grisanti, David Kim
  • Patent number: 10203457
    Abstract: A fiber-optic connector ferrule body (10) that includes a depth that extends from a front end (12) to a rear end (14) of the ferrule. The ferrule includes a contact face (16) at the front end of the ferrule. The contact face includes a major dimension that extends along a major axis (X) defined by the contact face and a minor dimension that extends along a minor axis (Y) defined by the contact face. The major and minor axes are perpendicular to one another. The ferrule also defines alignment pin receivers (18) that extend rearwardly from the front end of the ferrule. The alignment pin receivers have tight-fit sections (26) that extend into the ferrule body from the contact face and flex sections (28) that extend from the first transverse cross-sectional shape to the rear end. The first and second transverse cross-sectional profiles define a degree of rotational flexibility between alignment pins (24) received in the alignment pin receivers (18) and the ferrule body (10).
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: February 12, 2019
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Yu Lu, Michael Aaron Kadar-Kallen
  • Patent number: 10203525
    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 18, 2017
    Date of Patent: February 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Gill, Chi Xiong
  • Patent number: 10197743
    Abstract: A multi-fiber ferrule has lenses that have different prescriptions to disperse the light emitted from the multi-fiber ferrule. Alternatively, the lens for each individual optical fiber can be moved relative to the optical fiber or the optical fiber opening in the multi-fiber ferrule to cause the laser beam exiting the multi-fiber ferrule to be redirected into a structure that absorbs or blocks the laser.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: February 5, 2019
    Assignee: US Conec, LTD
    Inventors: Darrell R. Childers, Michael E. Hughes, Daniel D. Kurtz
  • Patent number: 10197732
    Abstract: Methods of forming ion-exchanged waveguides in glass substrates are disclosed. In one embodiment, a method of forming a waveguide in an ion-exchanged glass substrate having an ion-exchanged layer extending from a surface to a depth of layer of the ion-exchanged glass substrate includes locally heating at least one band at the surface of the ion-exchanged glass substrate to diffuse ions in the ion-exchanged layer within the at least one band. A concentration of ions within the at least one band is less than a concentration of ions outside of the at least one band, and at least one waveguide is defined within the ion-exchanged layer adjacent the at least one band. In some embodiments, the at least one waveguide is embedded within the ion-exchanged glass substrate such that an upper surface of the at least one waveguide is below the surface of the glass substrate by a depth d.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 5, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Minghan Chen, Ming-Jun Li, Gaozhu Peng
  • Patent number: 10197819
    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: December 29, 2017
    Date of Patent: February 5, 2019
    Assignee: International Business Machines Corporation
    Inventors: Douglas M. Gill, Chi Xiong
  • Patent number: 10197751
    Abstract: A coaxial transmitter optical subassembly (TOSA) including a ball lens may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes a laser package with a ball lens holder section defining a lens holder cavity that receives the ball lens. The lens holder cavity is dimensioned such that the ball lens is positioned in substantial alignment with the laser diode for optically coupling a laser output from the laser diode into an optical waveguide at an optical coupling end of the TOSA. The coaxial TOSA is thus configured to allow the less expensive ball lens to be used in a relatively small package when a lower coupling efficiency and power is desired and without substantial redesign of the TOSA.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 5, 2019
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Jianhong Luo, Che-Shou Yeh, I-Lung Ho, Peng Nie
  • Patent number: 10185095
    Abstract: Device for the coaxial connection of fiber-optic cables, comprising a single-piece coupling housing (10) and a single-piece sleeve mount (20), the sleeve mount (20) being designed with at least one latching nose (21) and the coupling housing (10) being designed with at least one latching mount which complements the at least one latching nose (21), wherein the latching mount is designed with at least one latching hook (14) and at least one stop (15).
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: January 22, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Eberhard Kahle, Anne Kramer, Jörg Adomeit
  • Patent number: 10180551
    Abstract: Fiber optic bundles include helically stranded subunit cables. The assemblies have small cross sections and low bend radii while maintaining acceptable attenuation losses. Binders can be omitted to improve ease of processing and installation. Helically stranding of the subunit cables allows ease of access to the individual cables during installation.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: January 15, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Harold Edward Hudson, II, William Carl Hurley, Warren Welborn McAlpine, David Alan Seddon
  • Patent number: 10180541
    Abstract: A fiber optic connector is disclosed that includes a plug body having a plug end and a connector core that mounts within the plug body. The connector core includes a ferrule subassembly including a ferrule, a ferrule hub that attaches to the ferrule, a spring holder and a connector spring. The ferrule sub-assembly is assembled with the connector spring pre-compressed to an initial compressed state prior to mounting the connector core within the connector body. The plug body and the core are configured such that the connector spring is moved from the initial compressed state to a final compressed state when the connector core is loaded in the plug body. In certain examples, tuning features can be integrated into the connector core.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 15, 2019
    Assignees: COMMSCOPE CONNECTIVITY BELGIUM BVBA, COMMSCOPE ASIA HOLDINGS B.V., ADC TELECOMMUNICATIONS (SHANGHAI) DISTRIBUTION CO., LTD.
    Inventors: Philippe Coenegracht, Jianfeng Jin, Liming Wang, Jacob Arie Elenbaas
  • Patent number: 10180553
    Abstract: Fiber optic enclosures, terminal assemblies, end cap assemblies, and methods of sealing fiber optic enclosures are disclosed. The terminal assembly of a fiber optic enclosure may include an input fiber sealing assembly and an output fiber sealing assembly. The input fiber sealing assembly may include an input fiber insert positioned in an input fiber channel of the cap body, an input fiber compression plate positioned in the input fiber channel, and an input fiber compression member for compressing the insert between the fiber compression plate and the base plate. The output fiber sealing assembly may include an output fiber insert positioned in the output fiber channel of the cap body, an output fiber compression plate positioned in the output fiber channel, and an output fiber compression member for compressing the insert between the fiber compression plate and the base plate.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 15, 2019
    Assignee: Corning Research & Development Corporation
    Inventors: Julian Bautista Flores, Joshua David Henley, Jose Martinez Sanchez, Karyne Poissant Prevratil, David Kimondo Waruiru
  • Patent number: 10180538
    Abstract: Good optical properties can be achieved in an optical waveguide made of polycrystalline silicon. A semiconductor layer that constitutes each of a first optical signal line, a second optical signal line, a grating coupler, an optical modulator, and a p-type layer of a germanium optical receiver is formed by a polycrystalline silicon film. Crystal grains of polycrystalline silicon exposed on an upper surface of the semiconductor layer include crystal grains having flat surfaces parallel to a first main surface of a semiconductor substrate, and crystal grains of polycrystalline silicon exposed on side surfaces (including side surfaces of a protrusion of a protruding portion) of the semiconductor layer include crystal grains having flat surfaces perpendicular to the first main surface of the semiconductor substrate.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: January 15, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Tatsuya Usami
  • Patent number: 10175168
    Abstract: A sensor for hydrocarbons uses a waveguide with a first cladding layer, a second cladding layer with a measurement region with hydrophobic measurement material, and a core between the first and second cladding layers. Light is coupled into the waveguide. The measurement material is exposed to the hydrocarbon allowing the hydrocarbon to diffuse into it and change refractive index of the material, which changes intensity of light evanescently coupled through the first cladding layer. Light coupled through the first cladding layer is measured to determine exposure of the sensor to the hydrocarbons.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: January 8, 2019
    Assignee: Colorado State University Research Foundation
    Inventors: Kevin Lear, Timothy Erickson
  • Patent number: 10162110
    Abstract: A semiconductor device is provided with an insulating layer formed on a base substrate, an optical waveguide composed of a semiconductor layer formed on the insulating layer, and an insulating film formed along an upper surface of the insulating layer and a front surface of the optical waveguide. A peripheral edge portion of a lower surface of the optical waveguide is separated from the insulating layer, and the insulating film is buried between the peripheral edge portion and the insulating layer.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 25, 2018
    Assignees: RENESAS ELECTRONICS CORPORATION, PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION
    Inventors: Tatsuya Usami, Keiji Sakamoto, Yoshiaki Yamamoto, Shinichi Watanuki, Masaru Wakabayashi, Tohru Mogami, Tsuyoshi Horikawa, Keizo Kinoshita
  • Patent number: 10162115
    Abstract: Two-port optical retro-reflectors with high isolation and high return loss are described. Such retro-reflectors are designed to increase the number of optical filtering using one or more filters uniquely disposed to increase the isolation and return loss.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: December 25, 2018
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Bruce Peng, Andy Zhou, Yao Li