Patents Examined by Sung H. Pak
  • Patent number: 11579395
    Abstract: A cable mount for fixing a strength member of a fiber optic cable to a fixture includes a front end, a rear end, and a longitudinal channel therebetween, the channel defined by upper and lower transverse walls and a vertical divider wall. The channel receives a portion of the cable. A strength member pocket receives the strength member of the cable, the pocket located on an opposite side of the divider wall from the longitudinal channel, the pocket communicating with the longitudinal channel through an opening on the divider wall. A strength member clamp fixes the strength member of the cable against axial pull. Cable management structures in the form of spools define at least one notch that communicates with the longitudinal channel for guiding optical fibers extending from a jacket either upwardly or downwardly therethrough. The cable mount also allows routing of the optical fibers through the longitudinal channel all the way from the rear end to the front end.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: February 14, 2023
    Assignees: CommScope Connectivity Belgium BVBA, ADC Czech Republic s.r.o.
    Inventors: Johan Geens, Pieter Vermeulen, Eric Keustermans, Matthias Alderweireldt, Tomas Fucsek
  • Patent number: 11579379
    Abstract: A fiber optic adapter assembly reduced in size from a SFP footprint to a SC footprint to accommodate a first fiber optic connector on a first side within one or more ports, and a second fiber optic connector on a second side within one or more ports. The first fiber optic connector is a duplex fiber optic connector with an overall length of about 50 mm and the second fiber optic connector is a behind-the-wall connector with an overall length of about 15 mm thereby reducing the overall length of a connector and adapter assembly for increasing optical fiber density.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 14, 2023
    Assignee: Senko Advanced Components, Inc.
    Inventors: Jimmy Chang, Kazuyoshi Takano, Paul Newbury
  • Patent number: 11579392
    Abstract: An indexed cable arrangement can be installed in a re-enterable housing. The optical fibers of the cable are indexed between a first; ruggedized multi-fiber connector and a second multi-fiber connector. The second multi-fiber connector may be non-ruggedized and disposed within the housing (e.g., at an adapter) or ruggedized and disposed external of the housing (e.g., terminating a stub cable). One or more drop lines are terminated by respective non-ruggedized, single-fiber connectors disposed within the housing. In certain examples, drop lines may be split into multiple connectorized single-fiber outputs.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: February 14, 2023
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Patrick Jacques Ann Diepstraten, Dean R. Pettigrew, Paul David Hubbard, Steven James Dick, Dennata Radiansari
  • Patent number: 11579389
    Abstract: An optical fiber pedestal box comprises a pedestal having a rail and an optical fiber box configured to mount to the pedestal. The optical fiber box is restricted in movement by at least one cable and the pedestal is configured to slide relative to the optical fiber box to accommodate cables moving because of ground heaving during freezing and thawing. The optical fiber pedestal box may be configured to receive different sizes and types of optical fiber cables.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 14, 2023
    Assignee: Clearfield, Inc.
    Inventors: John P. Hill, Todd M. Bade, Walter E. Power, II
  • Patent number: 11579374
    Abstract: A hybrid ingress protection adapter and connector assembly, connecting the housing with a releasably replaceable connector and power assembly to an adapter that is mount on a panel. The connector has a pair of lead-ins that protect a ferrule of a plural of fiber optic connectors, and the lead-ins are of varying length allow blind mating of the connector assembly with the adapter assembly.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: February 14, 2023
    Assignee: Senko Advanced Components, Inc.
    Inventors: Benjamin Lee, Paul Newbury, Kazuyoshi Takano, Jeffrey Gniadek
  • Patent number: 11573371
    Abstract: A lightguide optical element (LOE) configured for polarization scrambling is provided. The LOE includes a transparent substrate having a first refractive index, the substrate having a pair of parallel external surfaces configured to propagate light within the LOE through total internal reflection (TIR), and a plurality of mutually parallel partially reflective internal surfaces, those being non-parallel to the pair of parallel external surfaces and configured to couple out said light to a viewer. The LOE further includes a first coating on at least one external surface of the substrate, the first coating being of a coating material having a second refractive index higher than the first refractive index; The LOE further includes an antireflective (AR) coating on at least one external surface of the substrate over the first coating.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: February 7, 2023
    Assignee: Lumus Ltd.
    Inventors: Motke Gilo, Tsion Eisenfeld, Yochay Danziger
  • Patent number: 11567258
    Abstract: The present disclosure discloses an optical device structure including an optical fiber including a core part, a clad part, and a three-dimensional micro hole structure in the clad part, wherein a surface of the three-dimensional micro hole structure is provided with at least a non-flat surface, and a conformal graphene layer is formed on the surface of the three-dimensional micro hole structure, and a method of manufacturing the same.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: January 31, 2023
    Assignees: Korea Institute of Science and Technology, Korea Institute of Machinery & Materials
    Inventors: Yong Won Song, Md. Siam Uddin, Jiyeon Choi, Sungil Kim, Dohyun Kim
  • Patent number: 11561354
    Abstract: A butt closure base includes a base housing extending along a longitudinal axis between a first outer surface and a second outer surface, the base housing defining a plurality of cavities between the first and second outer surfaces, the plurality of cavities aligned in an annular array. A first gel is disposed in each of the plurality of cavities. The butt closure base further includes a plurality of wedge assemblies, each of the plurality of wedge assemblies removably insertable into one of the plurality of cavities. Each of the plurality of wedge assemblies includes an outer cover, a second gel, and a main pressure plate in contact with the second gel. The main pressure plate is movable along the longitudinal axis to apply pressure to the second gel.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 24, 2023
    Assignee: AFL Telecommunications LLC
    Inventors: David Wittmeier, Eddie Kimbrell
  • Patent number: 11561347
    Abstract: An optical input polarization management device includes a polarization splitter and rotator (PSR) that directs a portion of incoming light having a first polarization through a first optical waveguide (OW). The PSR rotates a portion of the incoming light having a second polarization to the first polarization so as to provide polarization-rotated light. The PSR directs the polarization-rotated light through a second OW. Light within the first and second OW's is input to a first two-by-two optical splitter (2×2OS). A first phase shifter (PS) is interfaced with either the first or second OW. Light is output from the first 2×2OS into a third OW and a fourth OW. Light within the third and fourth OW's is input to a second 2×2OS. A second PS is interfaced with either the third or fourth OW. Light is output from the second 2×2OS into a fifth OW for further processing.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: January 24, 2023
    Assignee: Ayar Labs, Inc.
    Inventors: Pavan Bhargava, Derek Van Orden, Mark Wade, John Fini, Chen Sun, Milos Popovic, Anatol Khilo
  • Patent number: 11555974
    Abstract: Disclosed is an armored fire resistant fiber optic cable including a core comprising a central strength member, and a plurality of buffer tubes arranged around said central strength member, each buffer tube containing a plurality of optical fibers; a first mica layer arranged around the core; an inner sheath surrounding the first mica layer; a metal wire armor surrounding the inner sheath; and an outer sheath surrounding and in direct contact with the metal wire armor, wherein a second mica layer surrounds the inner sheath and the metal wire armor surrounds the second mica layer.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 17, 2023
    Assignee: Prysmian S.p.A.
    Inventors: Zekeriya Sirin, Baris Soenmez, Can Altingoez
  • Patent number: 11555975
    Abstract: A telecommunications component includes an outer housing that includes a badge holder. The badge holder is configured to receive a badge. The badge is configured to be inserted into the badge holder. The badge includes a feature that is identifying of the source of the telecommunications component and the feature is at least one of a logo, a specific color, text information, a barcode, a QR code, and a RFID tag. The badge includes a pair of arms extending from opposing sides to engage with the badge holder of outer housing. The badge includes a securing feature that is configured to secure the badge within the badge holder.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 17, 2023
    Assignee: CommScope Technologies LLC
    Inventors: Johan Geens, Roel Modest Willy Bryon, Pieter Doultremont, Philippe Coenegracht
  • Patent number: 11550109
    Abstract: A network device comprising a chassis, a plurality of fiber optic adapters, a plurality of arrangements of interior fiber optic cables, and a plurality of stacked cable management trays. The chassis includes a front panel with a plurality of front fiber optic adapter openings. The chassis defines an interior space. The plurality of front fiber optic adapters is disposed in the front fiber optic adapter openings. The plurality of arrangements of interior fiber optic cables is disposed within the interior space. A first end of each interior fiber optic cable is directly connected to a corresponding one of the plurality of front fiber optic adapters. The plurality of stacked cable management trays each support one of the plurality of arrangements of interior fiber optic cables. The plurality of stacked cable management trays is configured to route a second end of each interior fiber optic cable to a corresponding side fiber optic adapter.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: January 10, 2023
    Assignee: QUANTA COMPUTER INC.
    Inventors: Chao-Jung Chen, Hou-Hsien Chang
  • Patent number: 11549885
    Abstract: An optical chemical analysis apparatus (14) includes an optical waveguide (15) and a light source (17). The optical waveguide (15) has a core layer (12) that includes a light propagator (10), through which light can propagate in an extension direction, and a diffraction grating (first diffraction grating (11)) that connects optically to the light propagator (10). The light source (17) is configured to inject the light into the diffraction grating by emitting incoherent light. The diffraction grating further includes a light intake region for introduction of light from the light source, and the light source includes at least one light emitting point at a position such that the difference between the shortest optical distance Lab to the light intake region and the longest optical distance Lac to the light intake region is less than half of the wavelength, in a vacuum, of the light.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: January 10, 2023
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Takaaki Furuya, Toshiro Sakamoto
  • Patent number: 11550200
    Abstract: One illustrative device disclosed herein includes a lower waveguide structure and an upper body structure positioned above at least a portion of the lower waveguide structure. In this example, the device also includes a grating structure positioned in the upper body structure, wherein the grating structure comprises a plurality of grating elements that comprise a tunable material whose index of refraction may be changed by application of energy to the tunable material.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 10, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Yusheng Bian, Ajey Poovannummoottil Jacob
  • Patent number: 11540719
    Abstract: Disclosed is an optical probe of an optical coherence tomography (OCT) system according to an exemplary embodiment of the present disclosure. The optical probe of the OCT system includes: an optical fiber receiving light generated from a light source and transferring the received light to a plurality of lenses and receiving light reflected from tissue from the plurality of lenses and transferring the received light to an optical coherence system; a plurality of lenses including a first lens positioned at a distal end of the optical fiber and a second lens positioned at a predetermined point in a longitudinal direction of the optical fiber; and a sheath capable of accommodating the optical fiber therein.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: January 3, 2023
    Assignee: DOTTER INC.
    Inventors: Yosuf Syed Ahmed, Juhyun Chung, Jong Woo Han, Hyung Il Kim
  • Patent number: 11543609
    Abstract: An optical fiber cable including a central strength member extending along a longitudinal axis of the optical fiber cable and a plurality of buffer tubes that are wound around the central strength member. Each of the plurality of buffer tubes includes a first material having a modulus of elasticity of at most 600 MPa at room temperature and a peak heat release rate (PHRR) of at most 300 kW/m2 as measured according to ASTM E1354. A cable jacket is disposed circumferentially around the plurality of buffer tubes and extends along the longitudinal axis.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: January 3, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Jie Feng, William Carl Hurley, Martina Petra Richter-Bühling
  • Patent number: 11543612
    Abstract: To provide a connector plug that makes it possible to facilitate a plurality of persons' confirmation of a connector plug before its removal or after its insertion and to prevent erroneous work. The connector plug according to the present invention has a discoloration member mounted on a gripping portion for pinching during work. The color of the discoloration member changes due to heat of a worker's fingertips when the worker pinches the connector plug or pressure when the worker pinches the connector plug. The discoloration member is discolored by one worker pinching the connector plug. Another worker looks at the discolored discoloration member, and then is able to confirm whether the connector plug is a work target.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: January 3, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masaaki Takaya, Yoshiteru Abe, Ryo Koyama, Chisato Fukai, Kazunori Katayama
  • Patent number: 11543606
    Abstract: Structures including an edge coupler and a crackstop, as well as methods of forming a structure including an edge coupler and a crackstop. A waveguide core and a crackstop are located over a top surface of a dielectric layer. A communication passageway is either optically coupled or electrically coupled to the waveguide core. The communication passageway, which may include an electric conductor or a buried waveguide core, extends laterally beneath the crackstop.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: January 3, 2023
    Assignee: GlobalFoundries U.S. Inc.
    Inventors: Nicholas A. Polomoff, Jae Kyu Cho, Frank Kuechenmeister, John J. Ellis-Monaghan, Michal Rakowski
  • Patent number: 11536921
    Abstract: Fiber optic terminals having at least one loopback assembly comprising a loopback optical fiber providing optical communication between a first output connection port and a second output connection port of the terminal along with fiber optic networks using the terminals are disclosed. The loopback optical fiber is terminated with a first optical connector and a second optical connector. The first optical connector is attached to the first output connection port of the terminal and the second optical connector of the loopback assembly attached to the second output connection port of the terminal, thereby allowing the network operator to send a test signal to the terminal and receive a return signal when the terminal is installed in a fiber optic network.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: December 27, 2022
    Assignee: Corning Research & Development Corporation
    Inventor: Robert Bruce Elkins, II
  • Patent number: 11531178
    Abstract: An apparatus implements a fiber breakout assembly. The fiber breakout assembly includes a tube and a plug. The tube includes a trunk portion and a plug receiving portion. The plug includes multiple entry holes and is configured to be inserted into the plug receiving portion of the tube. A crimp post is formed as part of the tube and includes one or more crimp retention features.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: December 20, 2022
    Assignee: ViaPhoton, Inc.
    Inventors: Walter Mark Hendrix, James Patrick Nolan, Nathan Eric Benton, Syed Babar Abbas