Patents Examined by Omar R Rojas
  • Patent number: 12265261
    Abstract: An apparatus for fusion welding one or several parallel optical fibers (102) to the same number of waveguides (101) includes a fiber guiding device and a highly reflective surface (104) located below the fiber for each fiber-waveguide pair, and a laser beam (103) whose wavelength is chosen such that its light is strongly absorbed by the fiber material and its shape is properly adjusted.
    Type: Grant
    Filed: December 20, 2020
    Date of Patent: April 1, 2025
    Assignee: Soreq Nuclear Research Center
    Inventors: Bruno Sfez, Neta Arad-Vosk, Netanel Malka
  • Patent number: 12240387
    Abstract: A vehicle wiring system includes a plurality of functional units to be mounted in a vehicle, an optical transmission line that is wired between the functional units and configured to transmit an optical signal of the functional units, an electric wire harness that is provided, in a partial section of the optical transmission line, together with the optical transmission line in a state of being integrated with the optical transmission line, and an optical coupler that is disposed in a portion of the optical transmission line other than the section and constitutes a part of the optical transmission line.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: March 4, 2025
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yuto Ueno, Susumu Takeshima
  • Patent number: 12235490
    Abstract: A semiconductor structure includes a waveguide and an optical attenuator. The waveguide is disposed over an insulating layer and configured to guide light. The optical attenuator is connected to the waveguide. The optical attenuator has a first surface and a second surface opposite the first surface, and a cross-sectional width of the optical attenuator decreases from the first surface to the second surface.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: February 25, 2025
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Wei-Kang Liu, Lee-Shian Jeng, Chih-Tsung Shih, Hau-Yan Lu, Yingkit Felix Tsui
  • Patent number: 12235467
    Abstract: Beam combining optical systems include a fiber beam combiner having multiple inputs to which output fibers of laser diode sources are spliced. Cladding light stripping regions are situated at the splices and include exposed portions of fiber claddings that are at least partially encapsulated with an optical adhesive or a polymer. A beam combiner fiber that is optically downstream of a laser source has an exposed cladding secured to a thermally conductive support with a polymer or other material that is index matched to the exposed cladding. This construction permits attenuation of cladding light propagating toward a beam combiner from a splice.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 25, 2025
    Inventors: Chris A. Rivera, Dahv A. V. Kliner, Joseph Emery
  • Patent number: 12216311
    Abstract: An eyepiece for an augmented reality display system. The eyepiece can include a waveguide substrate. The waveguide substrate can include an input coupler grating (ICG), an orthogonal pupil expander (OPE) grating, a spreader grating, and an exit pupil expander (EPE) grating. The ICG can couple at least one input light beam into at least a first guided light beam that propagates inside the waveguide substrate. The OPE grating can divide the first guided light beam into a plurality of parallel, spaced-apart light beams. The spreader grating can receive the light beams from the OPE grating and spread their distribution. The spreader grating can include diffractive features oriented at approximately 90° to diffractive features of the OPE grating. The EPE grating can re-direct the light beams from the first OPE grating and the first spreader grating such that they exit the waveguide substrate.
    Type: Grant
    Filed: July 7, 2023
    Date of Patent: February 4, 2025
    Assignee: Magic Leap, Inc.
    Inventors: Michael Anthony Klug, Robert Dale Tekolste, William Hudson Welch, Eric Browy, Victor Kai Liu, Samarth Bhargava
  • Patent number: 12189262
    Abstract: An optoelectronic device (20) includes thin film structures (56) disposed on a semiconductor substrate (54) and patterned to define components of an integrated drive circuit, which is configured to generate a drive signal. A back end of line (BEOL) stack (42) of alternating metal layers (44, 46) and dielectric layers (50) is disposed over the thin film structures. The metal layers include a modulator layer (48), which contains a plasmonic waveguide (36, 99, 105) and a plurality of electrodes (30, 32, 34, 96, 98, 106), which apply a modulation to surface plasmons polaritons (SPPs) propagating in the plasmonic waveguide in response to the drive signal. A plurality of interconnect layers are patterned to connect the thin film structures to the electrodes.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: January 7, 2025
    Assignees: MELLANOX TECHNOLOGIES, LTD., ETH ZURICH, ARISTOTLE UNIVERSITY OF THESSALONIKI
    Inventors: Claudia Hoessbacher, Juerg Leuthold, Elad Mentovich, Paraskevas Bakopoulos, Dimitrios Kalavrouziotis, Dimitrios Tsiokos
  • Patent number: 12189191
    Abstract: A cable sealing device including an attaching part securable to the cable; a fixation part adapted to be mountable on the attaching part; and a sealing part. The attaching part includes outer locking faces. The fixation part has inner abutment faces adapted to co-operate with the outer locking faces to axially and rotationally lock the fixation part relative to the attaching part. The sealing part includes an inner seal and an outer seal. The sealing part also includes a second securing arrangement that is configured to engage a first securing arrangement of the fixation part to axially and rotationally lock the sealing part to the fixation part.
    Type: Grant
    Filed: January 9, 2023
    Date of Patent: January 7, 2025
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Dirk Kempeneers, Bart Vos, Kristof Vastmans, Danny Willy August Verheyden, Jos Paul G. Vandepoel
  • Patent number: 12174440
    Abstract: An interconnect package integrates a photonic die, an electronic die, and a switch ASIC into one package. At least some of the components in the electronic die, such as, for example, the serializer/deserializer circuits, transceivers, clocking circuitry, and/or control circuitry are integrated into the switch ASIC to produce an integrated switch ASIC. The photonic die is attached and electrically connected to the integrated switch ASIC.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: December 24, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Rabiul Islam, Stefan Rusu, Nick Samra
  • Patent number: 12164145
    Abstract: An optical fiber has a central axis. The optical fiber includes a core made of silica glass and extending along the central axis, a cladding made of silica glass and surrounding the core, the cladding extending along the central axis, and a coating layer made of resin and surrounding the cladding, the coating layer extending along the central axis. An outer diameter of the cladding varies along the central axis. A residual stress in a direction along the central axis varies along the central axis, the residual stress being averaged over the core and the cladding in a cross section perpendicular to the central axis. A deviation from an average value of the outer diameter and a deviation from an average value of the residual stress have signs opposite to each other.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: December 10, 2024
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takemi Hasegawa, Yuki Kawaguchi
  • Patent number: 12158613
    Abstract: A fiber optic connector may include a body, at least one input coupling configured to receive at least one fiber optic input cable, at least one output coupling configured to receive at least one fiber optic output cable, and at least one shuttle. The shuttle may be movable within the body between a connected position and a disconnected position, wherein the at least one fiber optic input cable and the at least one fiber optic output cable are optically connected when the at least one shuttle is in the connected position, and wherein the at least one fiber optic input cable and the at least one fiber optic output cable are not optically connected when the at least one shuttle is in the disconnected position.
    Type: Grant
    Filed: February 2, 2022
    Date of Patent: December 3, 2024
    Assignee: Sanwa Technologies, Inc.
    Inventors: Takashi Sato, Akihito Ishikawa, Tomoaki Kaga
  • Patent number: 12147080
    Abstract: The present disclosure provides a system and method for connecting an optical fiber to a ferrule. The system and method facilitate the process of epoxying the optical fiber in a manner that avoid inadvertently adhering the fiber to the side of a connector housing, which can result in breakage of the optical fiber when in the field. The system and method provide a mechanism for easily epoxying the optical fiber to the ferrule while still allowing for sonic radial movement of the optical fiber within the connector housing, which is desirable. The system and method incorporate an end cap that centers the optical fiber in the connector housing during the connection process and also acts as a strain relief when in the field.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: November 19, 2024
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventor: Steven Conrad Zimmel
  • Patent number: 12140795
    Abstract: An optical assembly for realizing horizontal and vertical spot-size conversion to couple light from a thin waveguide to a thick waveguide is disclosed. The assembly comprises at least one first thin waveguide with a first section having a first optical mode field and a horizontal spot-size expansion section providing spot-size conversion for a first horizontal dimension of said first optical mode field of a light beam propagating in said first waveguide, and at least one second thick waveguide with a second section having a second optical mode field and a horizontal spot-size reduction section providing spot-size conversion for a second horizontal dimension of said second optical mode field of a light beam propagating in said second waveguide.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: November 12, 2024
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventor: Timo Aalto
  • Patent number: 12130439
    Abstract: In some embodiments, a display device includes one or more waveguides having a vapor deposited light absorbing film on edges of the waveguide to mitigate ghost images. In some embodiments, the film is formed directly on the edge of the waveguide by a vapor deposition, such as an evaporative deposition process. In some embodiments, the light absorbing films may comprise carbon, for example carbon in the form of one or more allotropes of carbon, such as fullerenes, or black silicon.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: October 29, 2024
    Assignee: Magic Leap, Inc.
    Inventor: Mauro Melli
  • Patent number: 12130480
    Abstract: Optically connecting two transceivers requires the transmitting portion of one transceiver matches with the receiving portion of the other transceivers. This requires that the polarity of the fiber optic connectors (attached to one another in a jumper) that connect the two transceivers is correct. Maintaining the correct polarity in the field can be confusing, time-consuming, and difficult to achieve. Not to mention that the installers need to make sure they have the correct number and polarity of the jumpers. This is further complicated when the fiber optic connectors are VSFF and have a key on a short side of the fiber optic connector. A system that involves an A-to-B patch cord and an opposed key adapter solves each of these issues. Only one type of patch cord (A-to-B) and one type of adapter is needed. With these components, an installer can connect the two transceivers without any mistakes.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: October 29, 2024
    Assignee: US Conec Ltd.
    Inventors: Jeff Hendrick, Michael E. Hughes
  • Patent number: 12105329
    Abstract: An optical connector has a front end and a rear end in a first direction. The optical connector includes a ferrule that holds an optical fiber at the front end, and a front housing that accommodates the ferrule. The ferrule includes a flange portion having a regular hexagonal prism shape. The front housing has a through-hole into which the flange portion is inserted. The through-hole includes a first hole portion in which a cross section perpendicular to the first direction is a regular hexagonal shape, and a second hole portion that is continuous from the first hole portion. The second hole portion has a third end close to the front end, and a fourth end close to the rear end. In a cross section of the fourth end perpendicular to the first direction, six contours corresponding respectively to six sides of the third end bulge outward or inward.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: October 1, 2024
    Assignee: SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
    Inventors: Takahiro Inaba, Yoshikyo Tamekuni, Mitsumasa Seita
  • Patent number: 12105327
    Abstract: Techniques are provided for implementing and using a travelling wave resonator, comprising planar optical waveguide including at least two stacked cores, to diminish Kerr effect in the travelling wave resonator. The travelling wave resonator may be used in a resonator optical gyroscope.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: October 1, 2024
    Assignee: Honeywell International Inc.
    Inventors: Jianfeng Wu, Matthew Wade Puckett, Steven Tin, Tiequn Qiu
  • Patent number: 12085757
    Abstract: A device for fusion splicing, by an arc discharge, a pair or a plurality of pairs of optical fibers arranged so that end surfaces thereof face each other. An optical fiber arrangement portion positions the pair or the plurality of pairs of optical fibers between a pair of electrodes. A control portion controls a voltage applied to the pair of electrodes. The control portion generates a first discharge between the pair of electrodes, stops the first discharge between the pair of electrodes, and then generates an arc discharge between the pair of electrodes to fusion-splice the pair or the plurality of pairs of optical fibers to each other. A discharge time of the first discharge is 200 milliseconds or less. A time from stopping the first discharge to starting the arc discharge is 100 milliseconds or less.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: September 10, 2024
    Assignee: SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD.
    Inventors: Hiroki Akiyama, Hideaki Yusa, Ryosuke Meo, Hiroshi Takayanagi
  • Patent number: 12066736
    Abstract: An optical module includes: a Peltier module; an optical semiconductor element mounted on the Peltier module; and a driver that drives high-frequency lines of the optical semiconductor element. The optical semiconductor element includes: optical circuits providing a function of an optical interferometer and the high-frequency lines. Cooling performance of the Peltier module in a region in vicinity of the driver is higher than the cooling performance in other regions.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: August 20, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiromasa Tanobe, Josuke Ozaki
  • Patent number: 12061361
    Abstract: An optical fiber connection structure according to the present invention includes a fiber support member configured to support an optical fiber to be optically connected to an optical waveguide device, a stopper configured to restrict movement in an axial direction of the optical fiber supported by the fiber support member, and a lens disposed on an optical axis between an end surface of the optical waveguide device and the optical fiber.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: August 13, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Kota Shikama, Jun Endo, Atsushi Aratake
  • Patent number: 12055756
    Abstract: A non-reciprocal phase shift device may include an optical waveguide (e.g., a silicon waveguide) on a substrate; and a magneto-optical cladding layer on the optical waveguide, wherein the magneto-optical cladding layer includes a plurality of segments arranged having alternating magnetization directions aligned transverse to a longitudinal direction of the optical waveguide.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: August 6, 2024
    Assignee: Regents of the University of Minnesota
    Inventors: Karthik Srinivasan, Bethanie Joyce Hills Stadler