Patents Examined by Jerry Rahll
  • Patent number: 10684497
    Abstract: An electro-optic modulator includes an input waveguide, a beam splitter connected to the input waveguide, a modulation arm that is disposed on each branch of the beam splitter and modulates a signal. Each modulation arm is correspondingly disposed with a first layer electrode and a second layer electrode. The first layer electrode is a high-frequency traveling wave electrode and is configured to change carrier concentration in the modulation arm, the second layer electrode is a direct current electrode having an inductor function, and an inductor formed in the second layer electrode is connected to the first layer electrode. The electro-optic modulator has functions of a bias tee, so that integration of the electro-optic modulator can be improved without affecting its performance. High-density packaging layout difficulty and cabling pressure can be effectively reduced, and cabling and packaging of a multi-channel high-speed signal on a base board can be implemented.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 16, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yanbo Li, Xiaolu Song, Zhen Dong, Ruiqiang Ji, Shengmeng Fu, Li Zeng
  • Patent number: 10678072
    Abstract: A method is provided. The method comprises: injecting an optical carrier signal into an unbent optical waveguide between two reflectors, where the distance between two reflectors in the center of the two reflectors is substantially zero and the two reflectors undergo substantially a ? phase shift where the two reflectors are adjacent; creating standing waves between the two reflectors in the center, and a single resonance due to constructive interference; applying a varying electric field across the unbent optical waveguide centered between two reflectors and extending a length less than or equal to a combined length of the two reflectors; and generating a modulated carrier signal at at least one of an input and an output of the unbent optical waveguide between the two reflectors.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 9, 2020
    Assignee: Honeywell International Inc.
    Inventors: Matthew Wade Puckett, Neil Krueger
  • Patent number: 10678113
    Abstract: Systems and methods are provided for a low impedance optical modulator in an optical device. The optical device includes a distributed amplifier having a plurality of gain stages and is configured to receive a radio frequency (RF) signal at an input of the distributed amplifier having a first impedance and provide an amplified version of the RF signal with a voltage gain produced through the plurality of gain stages to an output of the distributed amplifier having a second impedance smaller than the first impedance. The optical device includes an optical modulator coupled to the distributed amplifier and is configured to receive the amplified version of the RF signal at an input of the optical modulator having a same impedance as the output of the distributed amplifier and modulate the amplified version of the RF signal to produce an intensity modulated optical signal at an output of the optical modulator.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: June 9, 2020
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Anthony C. Kowalczyk, Xipeng Sui, Nicholas D. Saiz
  • Patent number: 10677989
    Abstract: A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: June 9, 2020
    Assignee: ROCKLEY PHOTONICS LIMITED
    Inventors: Hooman Abediasl, Andrew George Rickman, Amit Singh Nagra, Andrea Trita, Thomas Pierre Schrans, Aaron John Zilkie, Pradeep Srinivasan
  • Patent number: 10678000
    Abstract: An optical connector holding one or more LC-type optical ferrules is provided. The optical connector includes an outer housing, pin keep, and two pins. One pin acts as a push/pull mechanism to release the connector from the adapter. The pin keep has two side clips with one of two side clips having an alignment key on a top surface. The alignment key engages a corresponding surface in the adapter housing to aid in polarity setting of the connector with the adapter. The adapter has a panel mounting clip that contains one or more latches that engage and retain the connector in the adapter housing. The panel clips and surfaces of the connector are constructed to reduce the overall size of the connector and adapter. The adapter has a plural of internal ribs forming one or more channels.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: June 9, 2020
    Assignee: Senko Advanced Components, Inc.
    Inventors: Kazuyoshi Takano, Jeffrey Gniadek
  • Patent number: 10669372
    Abstract: A piezoelectric actuator is provided, including a vibration plate, a piezoelectric layer, a plurality of individual electrodes arranged in two arrays, first and second common electrodes which have first and second facing portions facing parts of the individual electrodes and first and second connecting portions connecting the first and second facing portions respectively, and first and second wiring portions which are arranged on the vibration plate and which are connected to the first and second common electrodes respectively via first and second connecting wirings, wherein one of the first connecting wirings connects the first connecting portion and one of the first wiring portion while striding over the second connecting portion.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: June 2, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Yoshikazu Takahashi
  • Patent number: 10663678
    Abstract: A connector, in particular an optical connector, has a plug unit, has a locking unit, which can be moved in translational fashion relative to the plug unit and, in a coupled state, is configured for locking the plug unit, and having a cable-kink protector, wherein the cable-kink protector is configured for actuating the locking unit directly.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: May 26, 2020
    Assignee: Reichle & De-Massari AG
    Inventor: Hans Andres
  • Patent number: 10663664
    Abstract: A coating removal tool includes a base part and a cover part, to remove a coating of an optical fiber by overlapping the cover part and the base part. The base part and the cover part are made of resin, and include at least a pair of coating removal blades including a base front blade portion provided on the base part and a cover front blade portion provided on the cover part. The base part includes a V-groove which sandwiches the optical fiber in either one or both of a front and rear of the optical fiber in the longitudinal direction and the cover part includes a V-groove which sandwiches the optical fiber and is provided on a side where the V-groove exists in the front and rear of the longitudinal direction in a state where the cover part and the base part are overlapped.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 26, 2020
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Daizo Nishioka, Motoyoshi Kimura, Yusuke Takai
  • Patent number: 10656351
    Abstract: A package structure is provided. The package structure includes an optical component over a substrate, and a reflector disposed over the substrate. The reflector includes a first semiconductor layer over a second semiconductor layer, and a dielectric layer between the first semiconductor layer and the second semiconductor layer. The reflector also includes a metal layer between the second semiconductor layer and the substrate. In addition, the package structure includes a waveguide between the metal layer and the optical component.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 19, 2020
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD
    Inventors: Sung-Hui Huang, Jui-Hsieh Lai, Shang-Yun Hou
  • Patent number: 10648876
    Abstract: Disclosed herein is an optical cable comprising a plurality of cable sensors helically wound around a support; and an outer jacket that is disposed on the plurality of cable sensors and surrounds the plurality of cable sensors; where each cable sensor comprises an optical fiber; where the optical fiber comprises an optical core upon which is disposed a cladding; a primary coating; a deformable material surrounding the optical fiber; and an outer tube surrounding the deformable material; where the optical fiber is of equal length to the outer tube; and where an allowable strain on the optical cable with zero stress on the optical fiber is determined by equations (1) and (2) below: ? = ? 2 ? ( D + d 2 ) 2 + p 2 p - ? 2 ? ( D - d 2 ) 2 + p 2 p = ? 2 ? dD p 2 = 10 ? ? dD p 2 ( 1 ) ? × 100 = Percent ? ? elongation ? ? or ? ? contraction ; ( 2 ) where d is the amount of optical fiber clearance for free movement
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 12, 2020
    Assignee: OFS FITEL, LLC
    Inventors: Robert S Dyer, Jie Li, John E Pacini, Brian Violette
  • Patent number: 10649150
    Abstract: A fiber optic interface includes a first fiber optic connector and a second fiber optic connector. The first fiber optic connector has a ferrule extending from a distal end to a proximal end. The ferrule includes a contact interface defined at the proximal end of the ferrule. A first optical fiber extends within the ferrule and terminates at a first fiber end. The first fiber end is spaced apart from the contact interface towards the distal end of the ferrule by a distance of at least five microns. The second fiber optic connector includes a second optical fiber extending within the second fiber optic connector and terminating at a second fiber end. The ferrule of the first fiber optic connector includes an end face which faces the second fiber optic connector when mated and consists of a single face.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: May 12, 2020
    Assignee: AFL Telecommunications LLC
    Inventors: Bin Liu, Scott Prescott, Dale Eddy, Shawn P. Collins
  • Patent number: 10649163
    Abstract: A rollable optical fiber ribbon utilizing low attenuation, bend insensitive fibers and cables incorporating such rollable ribbons are provided. The optical fibers are supported by a ribbon body, and the ribbon body is formed from a flexible material such that the optical fibers are reversibly movable from an unrolled position to a rolled position. The optical fibers have a large mode filed diameter, such as ?9 microns at 1310 nm facilitating low attenuation splicing/connectorization. The optical fibers are also highly bend insensitive, such as having a macrobend loss of ?0.5 dB/turn at 1550 nm for a mandrel diameter of 15 mm.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: May 12, 2020
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Dana Craig Bookbinder, Ming-Jun Li, Pushkar Tandon
  • Patent number: 10649157
    Abstract: A freeform DOE for use in an optical transmitter and a method of designing and manufacturing the DOE are provided. The freeform DOE is capable of achieving the same, or nearly the same, functionality as that of a glass DOE, but has a design that has been transformed to make the surface profile of the DOE compatible with a molding process that can be used to manufacture the DOE with high quality at low costs. The method of designing and manufacturing the DOE includes preselecting a CGH that will obtain a target freeform DOE design, using a preselected smoothing function to smooth the surface profile of the target freeform DOE design to transform the design into a DOE design that is compatible with a molding process, and using a fabrication process to manufacture a freeform DOE that is based on the transformed DOE design.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: May 12, 2020
    Assignee: Foxconn Interconnect Technology Limited
    Inventors: Dongqing Cao, Ye Chen, Bing Shao, Andrew Schmit, Li Ding
  • Patent number: 10649160
    Abstract: The present disclosure relates to optical systems and methods for their manufacture. An example system includes a first substrate that has at least one bridge structure. The bridge structure has a first surface with one or more light-emitter devices disposed on it. The system also includes a second substrate that has a mounting surface that defines a reference plane. The second substrate includes a structure and an optical spacer on the mounting surface. The first and second substrates are coupled together such that the first surface of the first substrate faces the second substrate at an angle with respect to the reference plane. The system also includes at least one spacer coupled to the mounting surface. The at least one spacer is in physical contact with the one or more light-emitter devices.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 12, 2020
    Assignee: Waymo LLC
    Inventors: Pierre-Yves Droz, David Schleuning, Augusto Tazzoli
  • Patent number: 10641970
    Abstract: The present disclosure relates to a field installable connector system. The connector system includes a factory terminated subassembly including a ferrule terminating an optical fiber of an optical fiber cable. The factory terminated subassembly has a small transverse cross-section to facilitate routing through a duct. The connector system also includes a field installable subassembly including various connector components that can be installed after the factory terminated subassembly has been routed through a duct. The components can be sealed and hardened.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 5, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Michael James Ott, Yu Lu, Ponharith Nhep
  • Patent number: 10641959
    Abstract: An optical device comprises first, second and third elements fabricated on a common substrate. The first element comprises an active waveguide structure supporting a first optical mode, the second element comprises a passive waveguide structure, characterized by a planar top surface, supporting a second optical mode, and the third element, at least partly butt-coupled to the first element, comprises an intermediate waveguide structure. If the first optical mode differs from the second optical mode by more than a predetermined amount, a tapered waveguide structure in at least one of the second and third elements facilitates efficient adiabatic transformation between the first optical mode and the second optical mode. Mutual alignments of the first, second and third elements are defined using lithographic alignment marks that facilitate precise alignment between layers formed during processing steps of fabricating the first, second and third elements.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: May 5, 2020
    Inventor: Hyundai Park
  • Patent number: 10643903
    Abstract: An optical mode converter and method of fabricating the same from wafer including a double silicon-on-insulator layer structure. The method comprising: providing a first mask over a portion of a device layer of the DSOI layer structure; etching an unmasked portion of the device layer down to at least an upper buried oxide layer, to provide a cavity; etching a first isolation trench and a second isolation trench into a mode converter layer, the mode converter layer being: on an opposite side of the upper buried oxide layer to the device layer and between the upper buried oxide layer and a lower buried oxide layer, the lower buried oxide layer being above a substrate; wherein the first isolation trench and the second isolation trench define a tapered waveguide; filling the first isolation trench and the second isolation trench with an insulating material, so as to optically isolate the tapered waveguide from the remaining mode converter layer; and regrowing the etched region of the device layer.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 5, 2020
    Assignee: Rockley Photonics Limited
    Inventors: John Drake, Damiana Lerose, Henri Nykänen
  • Patent number: 10627593
    Abstract: A telecommunications assembly includes a chassis defining an interior region and a tray assembly disposed in the interior region. The tray assembly includes a tray and a cable spool assembly. The cable spool assembly is engaged to a base panel of the tray. The cable spool assembly is adapted to rotate relative to the tray. The cable spool assembly includes a hub, a flange engaged to the hub and an adapter module. The flange defines a termination area. The adapter module is engaged to the termination module of the flange. The adapter module is adapted to slide relative to the flange in a direction that is generally parallel to the flange between an extended position and a retracted position.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: April 21, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Dennis Krampotich, Jonathan Walter Coan
  • Patent number: 10627696
    Abstract: An optical switch structure includes a substrate, a first electrical contact, and a first material having a first conductivity type electrically connected to the first electrical contact. The optical switch structure also includes a second material having a second conductivity type coupled to the first material, a second electrical contact electrically connected to the second material, and a waveguide structure disposed between the first electrical contact and the second electrical contact. The waveguide structure includes a waveguide core coupled to the substrate and including a first material characterized by a first index of refraction and a first electro-optic coefficient and a waveguide cladding at least partially surrounding the waveguide core and including a second material characterized by a second index of refraction less than the first index of refraction and a second electro-optic coefficient greater than the first electro-optic coefficient.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 21, 2020
    Assignee: PSIWUANTUM, CORP.
    Inventors: Chia-Ming Chang, Hung-Hsi Lin, Gary Gibson
  • Patent number: 10620374
    Abstract: Various methods, systems, and apparatuses, for optical switching are provided. For example, one wavelength selective switch (WSS) includes a plurality of optical ports wherein one or more optical ports are configured to receive one or more input optical beams the one or more input optical beams having a plurality of wavelength channels and wherein one or more of the optical ports are configured to receive one or more wavelength channels of the plurality of wavelength channels for output. The WSS also includes a polarization conditioning assembly, a polarization beam splitter assembly, a direction dependent polarization rotator, a polarization beam splitter, a grating, and a polarization modulator array having a plurality of polarizing modulation cells, each cell configured to independently change a polarization orientation of an optical beam passing through the cell.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Molex, LLC
    Inventors: Hongwei Mao, Gongjian Hu, Yi Liao, Guijun Ji, Tian Zhu