Patents Examined by Peter Radkowski
  • Patent number: 10598870
    Abstract: A fiber optic connector includes first and second ferrules arranged next to each other. The first and second ferrules each have a plurality of bores configured to support respective optical fibers. The fiber optic connector also includes an inner connector body having a front end from which the first and second ferrules extend, a latch arm extending outwardly from the inner connector body, and an outer body having a housing portion in which the inner connector body is at least partially received and a handle extending rearwardly from the housing portion. The outer body can move relative to the inner connector body to cause the latch arm to flex toward the inner connector body.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: March 24, 2020
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventor: Yen Hsu Lin
  • Patent number: 10578808
    Abstract: A fiber optic rotary joint for use in an optical power transfer system. The fiber optic rotary joint comprising a first housing element and a second housing element rotatable with respect to the first housing element. The first and second housing elements define a chamber. Optical connectors are disposed through the housing elements and have a beam expansion block positioned in the chamber. A laser is optically connected with the fiber optic rotary joint and transmits optical energy therethrough. Collimating optics aligned with the beam expansion blocks are orientated to direct the received optical energy to a position. The optical connectors and housing elements define a continuous coolant communication path with a coolant inlet and outlet. A rotary water coupling traverses through the housing elements. In an alternative embodiment, the fiber optic rotary joint also contains an actively cooled mirror positioned optically between the collimating optics.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: March 3, 2020
    Assignee: Stone Aerospace, Inc.
    Inventors: William C. Stone, Bartholomew P. Hogan
  • Patent number: 10551640
    Abstract: An apparatus comprising a polarization beam splitter optically coupled to a first light path and a second light path and configured to receive a CW light having a plurality of wavelengths, forward a first light beam of the CW light along the first light path, and forward a second light beam of the CW light along the second light path. A first multiplexer coupled to the first light path and configured to de-multiplex the first light beam into a first plurality of channels each corresponding to one of the plurality of wavelengths. A second multiplexer coupled to the second light path and configured to de-multiplex the second light beam into a second plurality of channels each corresponding to one of the plurality of wavelengths. A modulator coupled to the first multiplexer and the second multiplexer and configured to modulate the first plurality of channels and the second plurality of channels.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: February 4, 2020
    Assignee: Futurewei Technologies, Inc.
    Inventors: Yangjing Wen, Yan Cui, Xiao Shen, Yu Sheng Bai
  • Patent number: 10534189
    Abstract: Universal linear components are provided. In general, a P input and Q output wave combiner is connected to a Q input and R output wave mode synthesizer via Q amplitude and/or phase modulators. The wave combiner and wave mode synthesizer are both linear, reciprocal and lossless. The wave combiner and wave mode synthesizer can be implemented using waveguide technology. This device can provide any desired linear transformation of spatial modes between its inputs and its outputs. This capability can be generalized to any linear transformation by using representation converters to convert other quantities to spatial mode patterns. The wave combiner and wave mode synthesizer are also useful separately, and can enable applications including self-adjusting mode coupling, optimal multi-mode communication, and add-drop capability in a multi-mode system. Control of the wave combiner and wave mode synthesizer can be implemented with single-variable optimizations.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: January 14, 2020
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventor: David A. B. Miller
  • Patent number: 10527871
    Abstract: A differential optical modulator includes, in part, a splitter splitting an incoming optical signal into first and second input signals, a first variable coupler generating a first differential output signal in response to the first input signal, and a second variable coupler generating a second differential output signal in response to the second input signal. The first variable coupler includes, in part, first and second couplers and a phase shifter disposed therebetween. The first coupler generates a pair of internal signals in response to the first input signal. The second coupler generates the first differential output signal. The second variable coupler includes, in part, third and fourth couplers and a phase shifter disposed therebetween. The third coupler generates a pair of internal signals in response to the second input signal. The fourth coupler generates the second differential output signal.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: January 7, 2020
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Saman Saeedi, Behrooz Abiri, Azita Emami, Seyed Ali Hajimiri
  • Patent number: 10527799
    Abstract: A spring push with a main body, a crimp portion and two extensions also provides a trigger extending from the main body. The extensions provide engagement with the connector housing and also surfaces to engage the spring. The spring push may be a single component or be comprised of two separate pieces. An adapter is also disclosed with a cut out portion on a bottom side.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: January 7, 2020
    Assignee: US Conec, Ltd.
    Inventors: Hiep V. Nguyen, Joseph L. Graham
  • Patent number: 10514509
    Abstract: An optical coupler has a waveguide coupled to a grating of multiple scattering units, each scattering unit having a first scattering element formed of a shape in a polysilicon gate layer and a second scattering element formed of a shape in a body silicon layer of a metal-oxide-semiconductor (MOS) integrated circuit (IC). The couplers may be used in a system having a coupler on each of a first and second IC, infrared light being formed into a beam passing between the couplers. Vias may be interposed in third ICs between the first and second ICs. The couplers may be configured with nonuniform width of scattering elements to produce Gaussian or focused beams.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: December 24, 2019
    Assignees: The Regents of the University of Colorado, a Body Corporate, Massachusetts Institute of Technology
    Inventors: Milos Popovic, Vladimir Marko Stojanovic, Jason Scott Orcutt
  • Patent number: 10509243
    Abstract: An optical IQ modulator with automatic bias control is disclosed. A dither signal is applied to the modulator bias and its signature detected in light tapped from an output of the modulator using a phase sensitive dither detector such as a lock-in amplifier. The detected signal is processed using pre-recorded information defining the direction of the detected signal change relative to a change in the modulator bias, and the bias is adjusted in the direction determined using the information. The IQ phase bias is controlled by dithering I and Q optical signals in quadrature to produce opposite-sign single subband modulation of output light at two different dither frequencies, and detecting an oscillation at a difference frequency using a lock-in detector.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 17, 2019
    Assignee: Elenion Technologies, LLC
    Inventor: Bernd-Harald Horst Jurgen Rohde
  • Patent number: 10509187
    Abstract: A compartmentalized enclosure for controlling access to different components in a telecommunications system including a lower housing member shaped to define an outer perimeter portion and a cavity, a panel member configured to move between a closed panel position, where the panel member prevents access to equipment within the cavity, and an open panel position, where the panel member permits access to the cavity, wherein the panel member is disposed in the cavity of the lower housing member, and is shaped to define a inner perimeter portion that is configured to substantially match and fit within the outer perimeter portion of the lower housing member so as to form a substantially perimeter matching portion that prevents access to equipment within the cavity between the inner perimeter portion and the outer perimeter portion when the panel member is in the closed position.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: December 17, 2019
    Assignee: PPC BROADBAND, INC.
    Inventors: Peter A. Carapella, Noah P. Montena, Brian K. Hanson
  • Patent number: 10509295
    Abstract: An optical waveguide modulator with automatic bias control is disclosed. A dither signal is applied to the modulator bias and its signature detected in light tapped from an output of the modulator using a phase sensitive dither detector such as a lock-in amplifier. The detected signal is processed using pre-recorded information defining the direction of the detected signal change relative to a change in the modulator bias, and the bias is adjusted in the direction determined using the information. An IQ bias of a quadrature modulator is controlled by dithering bias settings of two inner modulators at different dither frequencies, and detecting an oscillation at a sum frequency.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: December 17, 2019
    Assignee: Elenion Technologies, LLC
    Inventors: Kishore Padmaraju, Thomas Wetteland Baehr-Jones, Bernd-Harald Horst Jurgen Rohde, Robert Palmer, Matthew Akio Streshinsky, Marc Bohn, Torsten Wuth
  • Patent number: 10509188
    Abstract: A closure (15) is installed at a network distribution point to facilitate upgrading a subscriber network (10) to extend optical fibers closer to the subscribers (18). The closure (15) may include active equipment to convert optical signals to electrical signals. The closure (15) enables a plug-and-play connection to the active equipment to facilitate installing and/or upgrading active equipment at the closure (15). The closure (15) also is expandable to enable drop cables (or other optical cable) to be routed from the closure (15) towards the subscribers (18).
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: December 17, 2019
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Gerd Van Cauteren, Dirk Kempeneers
  • Patent number: 10509177
    Abstract: A connection module includes a module body and a module circuit board arrangement. The module body defines a first port and an open first end providing access to the first port. The module circuit board arrangement extends across the open first end within a peripheral boundary defined by the module body. The module circuit board arrangement includes at least a first contact set that extends into the first port of the module body; an electronic controller that is electrically connected to the first contact set; and a circuit board connector facing outwardly from the module board arrangement. Example connection modules include optical adapters and electrical jacks.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: December 17, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Paul John Pepe, Joseph Coffey
  • Patent number: 10502908
    Abstract: A optical assembly and a method of reducing interference using the same may be provided. The optical assembly may include an optical cable and an optical transceiver module. The optical transceiver module may include a socket configured to receive the optical cable, an electro-optical transducer configured to generate an optical signal, and an optical lantern. The optical lantern may include an optical prism that may receive the optical signal via a first surface, disperse the optical signal into a plurality of modes of the optical signal, and output the plurality of modes via a second surface. A mirror may reflect the optical signal from a first direction extending between the first surface and the mirror to a second direction extending between the mirror and the second surface. The optical lantern may direct at least one of the plurality of modes of the optical signal into the optical cable.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: December 10, 2019
    Assignee: MELLANOX TECHNOLOGIES, LTD.
    Inventors: Elad Mentovich, Sylvie Rockman, Itshak Kalifa, Yaakov Gridish
  • Patent number: 10505346
    Abstract: A semiconductor laser device of an edge emission type, where a waveguide mode is multi-mode, is provided. The semiconductor laser device includes a first facet of the waveguide on an emission direction front side, the first facet having a first width in a horizontal direction perpendicular to a longitudinal direction of the waveguide; and a second facet of the waveguide on an emission direction rear side, the second facet having the first width, wherein a width of the waveguide, in the horizontal direction, is at least partially narrower than the first width, between the first facet and the second facet.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: December 10, 2019
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Eisaku Kaji, Yutaka Ohki
  • Patent number: 10484120
    Abstract: Embodiments include a wavelength selective communication system for use in vehicles. In an embodiment, the communication system may include a primary dielectric waveguide having a first cross-sectional area. In an embodiment, a coupling arm dielectric waveguide may be communicatively coupled to the primary dielectric waveguide. In an embodiment, the coupling arm has a second cross-sectional area that is smaller than or equal to the cross-sectional area of the first cross-sectional area. According to an embodiment, the coupling arm is communicatively coupled to the primary dielectric waveguide by a waveguide connector.
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: November 19, 2019
    Assignee: Intel Corporation
    Inventors: Sasha N. Oster, Georgios C. Dogiamis, Telesphor Kamgaing, Adel A. Elsherbini, Johanna M. Swan, Erich N. Ewy
  • Patent number: 10481344
    Abstract: A method may include aligning a portion of each of a plurality of optical ribbons in a particular orientation or sequence using a set of alignment apparatus. The method may include stripping the portion of each of the plurality of optical ribbons to expose a cladding of each fiber of the plurality of optical ribbons using a set of stripping apparatus. The method may include hermetically sealing a tube around the portion of each of the plurality of optical ribbons using a set of sealing apparatus. The method may produce a hermetic optical fiber feedthrough.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 19, 2019
    Assignee: Lumentum Operations LLC
    Inventors: Steven Harold Moffat, Stephane McDermott, Michael Dagenais, Constantin Giurgea, Vladimir Torgashev, Nebojsa Gacic
  • Patent number: 10481348
    Abstract: There is provided an optical system for coupling light into a waveguide. The optical system comprising a coupler arranged at a portion of the waveguide. The coupler has a surface with a grating structure for directing light into the waveguide formed therein. A cladding layer embeds the coupler and an optical path changing structure is formed in the cladding layer. The optical path changing structure has a refractive surface and a reflective surface, each forming an acute angle with respect to the surface of the coupler. Light which enters the optical path changing structure through the refractive surface will be refracted and directed towards the reflective surface. The reflective surface is arranged to reflect the light such that it is directed towards the grating structure of the coupler along a direction suitable for efficient coupling of light into the waveguide.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: November 19, 2019
    Assignee: miDiagnostics NV
    Inventors: Jeonghwan Song, Pol Van Dorpe, Giuseppe Fiorentino, Philippe Soussan, Xavier Rottenberg
  • Patent number: 10481324
    Abstract: The present invention is directed to an optical fiber grating having a core, that is capable of controlling the light signal transmission therethrough by causing at least one of: at least one spectral peak, and/or at least one spectral dip in its core light transmission spectrum, corresponding to at least one predetermined wavelength. The inventive optical fiber diffraction grating comprises at least one longitudinally positioned structural element of a predetermined geometric profile and that is configured for diffracting a portion of the transmitted light signal at at least one predefined wavelength thereof, from at least one core mode into at least one of: at least one cladding mode and/or at least one radiating mode. Various embodiments of a number of novel techniques for fabrication of the inventive optical fiber diffraction grating are provided, inclusive of a novel technique for fabricating the inventive grating from a single material.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: November 19, 2019
    Assignee: Chiral Photonics, Inc.
    Inventors: Victor Churikov, Victor Il'ich Kopp
  • Patent number: 10473866
    Abstract: An integral fan-out connector assembly for fiber optic cables includes a connector housing that provides an integrated fan-out housing and connection adapter. The fan-out connector housing may be configured with a variety of cable adapters, and may be installed as a ‘plug and play’ type solution where it will be ready to accept a feed cable for use when needed.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: November 12, 2019
    Assignee: Senko Advanced Components, Inc.
    Inventors: Paul Newbury, Jimmy Chang
  • Patent number: 10473875
    Abstract: A fiber optic telecommunications device includes a frame defining a right vertical support and a left vertical support. A chassis is mounted to the right and left vertical supports, wherein the chassis is configured to pivot about a pivot axis that is defined by one of the right and left vertical supports. A plurality of modules are mounted on the chassis, each of the modules slidable on the chassis along a direction extending between the right and left vertical supports, wherein the chassis is configured to pivot about a plane parallel to the sliding direction of the modules, each module defining fiber optic connection locations.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: November 12, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Michael James Ott