Patents Examined by John Bedtelyon
  • Patent number: 11156773
    Abstract: A handle-integrated composite wafer assembly includes a handle wafer attached to a device wafer. The device wafer includes a device layer formed on a buried oxide layer. The device layer includes an optical resonator structure. The handle wafer includes a base layer and a layer of anti-reflective material disposed on a top side of the base layer. The base layer has a cavity extending into the base layer from the top side of the base layer. The cavity has at least one side surface and a bottom surface. The layer of anti-reflective material is substantially conformally disposed within the cavity on the at least one side surface and bottom surface of the cavity. The handle wafer is attached to the device wafer with the layer of anti-reflective material affixed to the buried oxide layer, and with the cavity substantially aligned with the optical resonator structure in the device layer.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: October 26, 2021
    Assignee: Ayar Labs, Inc.
    Inventors: Haiwei Lu, Chen Li, John Fini, Chong Zhang, Roy Edward Meade
  • Patent number: 11156792
    Abstract: The present disclosure provides an optical fiber cable (100). The optical fiber cable (100) includes a plurality of optical fibers ribbons (102) lying substantially along a longitudinal axis (116) of the optical fiber cable (100). Further, the optical fiber cable (100) includes a first layer (104) surrounding the plurality of optical fibers ribbons (102). Furthermore, the optical fiber cable (100) includes a second layer (106) surrounding the first layer (104). Furthermore, the optical fiber cable (100) includes a third layer (108) surrounding the second layer (106). Moreover, the optical fiber cable (100) includes a fourth layer (140) surrounding the third layer (108). The first layer (104) is a water blocking tape. The third layer (108) is sandwich of water blocking material and ECCS steel tape. Moreover, the optical fiber cable (100) includes two pairs of strength members (112a-b; 112c-d) embedded inside the second layer (106).
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 26, 2021
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Kishore Chandra Sahoo, Sravan Kumar, Pavan Kumar Moturu, Atul Mishra, Kavya Chintada
  • Patent number: 11150157
    Abstract: An apparatus for locating a measurand anomaly, such as a hot-spot, along an optical waveguide is provided having: an optical waveguide, a light source configured to transmit light along the waveguide and a plurality of sensors provided along the waveguide. Each sensor is configured to reflect a portion of light propagating along the waveguide at a respective sensor wavelength corresponding to a measurand. The plurality of sensors is configured into one or more sets according to their sensor wavelengths, each set comprising a plurality of sensors with respective sensor wavelengths, wherein the sensors are configured such that the sensor wavelength for each sensor in a respective set is substantially equal when the measurand experienced by each of the sensors in that set is equal. The apparatus further includes a detector configured to monitor the light reflected by the sensors, and a control system.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 19, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Crispin Doyle, Christopher Staveley
  • Patent number: 11150533
    Abstract: A capacitive electro-optical modulator includes a silicon layer, a germanium or silicon-germanium strip overlying the silicon layer, and a silicon strip overlying the germanium or silicon-germanium strip. The silicon strip is wider than the germanium or silicon-germanium strip. An insulator is laterally adjacent the germanium or silicon-germanium strip and the silicon strip and has an upper surface that is flush with an upper surface of the silicon strip. An insulating layer overlies the insulator and the silicon strip. A layer of III-V material overlies the insulating layer. The layer of III-V material is formed as a third strip arranged facing the silicon strip and separated therefrom by a portion of the insulating layer.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 19, 2021
    Assignee: STMicroelectronics (Crolles 2) SAS
    Inventors: Frédéric Boeuf, Cyrille Barrera
  • Patent number: 11143574
    Abstract: Provided is a screening apparatus or the like of an optical fiber that can suppress or prevent occurrence of a fiber-strike on the side of a feeding bobbin regardless of the weight of the feeding bobbin. An embodiment has a feeding bobbin 12 that feeds out an optical fiber 10; a screening unit 16 that applies a tension to the optical fiber 10 fed out from the feeding bobbin 12; a first capstan 14 that feeds the optical fiber 10 into the screening unit 16; a winding bobbin 20 that winds the optical fiber 10 to which the tension is applied by the screening unit 16; and a control unit 70 that, when disconnection of the optical fiber 10 occurs due to the tension applied by the screening unit 16, controls the feeding bobbin 12 and the first capstan 14 so as to stop rotation of the feeding bobbin 12 and rotation of the first capstan 14 and sets a deceleration rate of the first capstan 14 in accordance with a deceleration rate of the feeding bobbin 12.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 12, 2021
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventor: Takashi Suzuki
  • Patent number: 11137547
    Abstract: In a wavelength selective filter, an optical fiber collimator, an interference filter, and a reflective plate are arranged in this order from front to rear along a z-axis. The collimator has a collimator lens disposed on the rear side of an optical fiber that is opened. The interference filter includes light incident and emitting surfaces, opposed with their xy-planes rotated about a y-axis at a predetermined rotation angle. The reflective plate has a front reflective surface having a normal direction along a z-axis direction, and reflects, toward the front, light incident from the front through the interference filter, to be incident onto the interference filter. The optical fiber collimator causes the input light propagating through the optical fiber from the front to be incident onto the interference filter, and converges the reflected light transmitted through the interference filter to the optical fiber and outputs the light.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: October 5, 2021
    Assignee: Kohoku Kogyo Co., Ltd.
    Inventors: Takashi Kato, Toshihisa Okubo
  • Patent number: 11131821
    Abstract: Fanout conduit arrangements, and systems and methods are provided to organize a plurality of optic fibers of an optic fiber cable. The arrangements include a fanout member having an inspection aperture arrangement therethrough, through which fibers can be inspected and a fixation media can be transferred to protect the fibers. Methods for assembling the fanout conduit arrangement are also provided.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 28, 2021
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Cyle D. Petersen, Brent Campbell
  • Patent number: 11126021
    Abstract: A method for manufacturing a semiconductor optical device includes the steps of forming a first semiconductor layer on a substrate; forming a mask on the first semiconductor layer; forming a first mesa from the first semiconductor layer using the mask; forming an embedding layer on a portion of the first semiconductor layer that is exposed from the mask such that the first mesa is embedded in the embedding layer; and forming a second mesa from the first mesa.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: September 21, 2021
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Tomokazu Katsuyama
  • Patent number: 11126059
    Abstract: An optical device includes: a waveguide array including a plurality of waveguides; and a pulse generator. The waveguides are arranged in a first direction and extend in a second direction intersecting the first direction. The pulse generator inputs, as an input light beam, a light pulse of light to each of the waveguides. The light has a frequency spectrum in air with a maximum peak at a frequency corresponding to a wavelength ?, and the full width at half maximum of the maximum peak is ??. The waveguides propagate the input light beams in the second direction and emit part of the input light beams as emission light. The pulse generator adjusts the difference in phase between input light beams to be inputted to two adjacent waveguides of the plurality of waveguides to thereby change a first direction component of an emission direction of the emission light.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: September 21, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuhisa Inada, Taku Hirasawa
  • Patent number: 11125962
    Abstract: The present disclosure provides a rollable optical fiber ribbon. The rollable optical fiber ribbon includes a plurality of optical fibers positioned along a longitudinal axis of the rollable optical fiber ribbon. In addition, the rollable optical fiber ribbon includes a matrix material covering the plurality of optical fibers to provide flexibility to the rollable optical fiber ribbon. Further, the rollable optical fiber ribbon includes at least one colour line marking on the rollable optical fiber ribbon along the longitudinal axis of the rollable optical fiber ribbon.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 21, 2021
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Sravan Kumar, Venkatesh Murthy, Kishore Sahoo
  • Patent number: 11105996
    Abstract: The present disclosure relates to cable fixation devices for securing cables such as fiber optic cables to structures such as enclosures, panels, trays, frames or the like. The cable fixation devices can be configured to allow cables to be attached thereto while the fixation devices are disconnected from the structures. The fixation devices can be mounted in densely stacked configurations.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: August 31, 2021
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Barry Wayne Allen, David Jan Irma Van Baelen, Eric Schurmans
  • Patent number: 11099319
    Abstract: An optical fiber, an apparatus for receiving input radiation and broadening a frequency range, a radiation source, a metrology arrangement and a lithographic apparatus are provided. The optical fiber comprises a hollow core, a cladding portion and a support portion. The cladding portion surrounds the hollow core and comprises a plurality of anti-resonance elements for guiding radiation through the hollow core. The support portion surrounds and supports the cladding portion and comprises an inner support portion, an outer support portion and a deformable connecting portion that connects the inner support portion to the outer support portion.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 24, 2021
    Assignee: ASML Netherlands B.V.
    Inventors: Patrick Sebastian Uebel, Sebastian Thomas Bauerschmidt, Peter Maximilian Götz
  • Patent number: 11086083
    Abstract: An optical connector (100) includes a housing (112) configured to contain one or more optical ferrules (121) disposed within the housing and accessible through an opening at a mating end of the housing. A cover (130) is disposed at the mating end, the cover configured to be rotated about a pivoting axis between a closed position an open position. An actuator (135, 136) is configured to cause the cover to rotate about the pivoting axis from the closed position to the open position.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: August 10, 2021
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Alexander R. Mathews, James M. Nelson, Terry L. Smith, Michael A. Haase, Lars A. Smeenk
  • Patent number: 11086073
    Abstract: A guidewire having a fiber optic force sensor with a mirror having encoded reflectance is described. The guidewire has a distal housing supported by a core wire. A distal hypotube connected to the distal housing supports a spring intermediate hypotube proximal and distal portions. An atraumatic head is connected to the distal hypotube portion. An optical fiber having at least one fiber core extends through lumens in the core wire and housing to a distal end of the housing. A mirror supported by the atraumatic head faces proximally but is spaced distally from the fiber core at a distal face of the optical fiber. The mirror is provided with a pattern of reflectance that varies along a radius from a central area of reflectance. Light of a defined power shines from the fiber core to the mirror with a reflected percentage of the defined light power being reflected back to the fiber core.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: August 10, 2021
    Assignee: Lake Region Manufacturing, Inc.
    Inventors: John Michael Hayes, Jim Kelley
  • Patent number: 11086088
    Abstract: An optoelectronic assembly may include a photonic integrated circuit (PIC) with a top surface and a laser with a top surface and a bottom surface. The optoelectronic assembly may also include a housing configured to cooperate with the PIC to one or both of house and support one or more components. The housing may include a PIC mount including a first surface to interface with the top surface of the PIC, and a laser mount including a second surface to interface with the top or bottom surface of the laser. The first surface and the second surface may be parallel to each other.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 10, 2021
    Assignee: II-VI DELAWARE, INC.
    Inventors: Bernd Huebner, Tsurugi Sudo, Shiyun Lin
  • Patent number: 11079548
    Abstract: An optical connection apparatus includes a position fixing portion configured to fix optical circuits each having a different end portion, while interposing a connection member that is optically imprintable between the optical circuits, and an optical-imprinting portion configured to emit light to the connection member to form a three-dimensional (3D) optical waveguide in the connection member that connects the optical circuits to each other.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: August 3, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun Hyok Chang, Joon Ki Lee
  • Patent number: 11079557
    Abstract: A multi-fiber, fiber optic connector may include a reversible keying arrangement for determining the orientation for plugging the connector into an adapter to thereby allow for a change in polarity of the connection to be made on site. The connector housing may be configured to engage with a removable key that may be engaged with the housing in at least two different locations to provide the plug-in orientation, or the housing may have slidably displaceable keys movable between multiple positions on the housing.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: August 3, 2021
    Assignee: Senko Advanced Components, Inc.
    Inventors: Jeffrey Gniadek, Kim Man Wong, Yim Wong, Jimmy Chang
  • Patent number: 11073656
    Abstract: An aim is to provide an optical coupler that contributes increasing pump-efficiency in an optical amplifier, and the optical amplifier.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: July 27, 2021
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Shigehiro Takasaka, Koichi Maeda
  • Patent number: 11073662
    Abstract: A multi-fiber, fiber optic connector is interchangeable between a male connector and a female connector by including a pin retainer having a releasable retention device configured to lock the pins in place within the retainer. The retention device may be opened, for example, with a release tool, to free the retention pins for removal of the pins. A method for switching a connector between a male connector configuration and a female connector configuration may be possible as a result of the releasable retention configuration.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: July 27, 2021
    Assignee: Senko Advanced Components, Inc.
    Inventors: Jimmy Chang, Kazuyoshi Takano
  • Patent number: 11061189
    Abstract: There is provided an optical fiber protection structure capable of mitigating deterioration of optical characteristics of an optical fiber under a high-temperature environment and a method of manufacturing an optical element using the same. An optical combiner structure protects bare fiber exposure portions in which bare fibers are exposed from the coverings of optical fibers. The optical combiner structure has a fiber accommodation portion having a fiber accommodation groove that accommodates the bare fiber exposure portions therein, fixation resins filled within the fiber accommodation groove for fixing a portion of the coverings within the fiber accommodation groove, and seal resins for sealing spaces between the bare fibers and the coverings on ends of the bare fiber exposure portions. The seal resins are formed so as to be spaced from an inner surface of the fiber accommodation groove.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 13, 2021
    Assignee: FUJIKURA LTD.
    Inventors: Hiroto Nakazato, Tomoyuki Fujita, Kazuya Ishida