Patents Examined by Omar R Rojas
  • Patent number: 10197739
    Abstract: An optical connector plug includes an optical connector having an optical fiber built therein, and a cover member receiving the optical connector therein. The cover member includes a set of protrusions provided to protrude forward relative to a front end surface of the optical connector. A set of cutout portions as space portions are provided between the set of protrusions, and the set of cutout portions are arranged at locations opposing each other around the optical connector.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: February 5, 2019
    Inventors: Kenichiro Ohtsuka, Yuji Suzuki, Norihiko Kitahara, Motoyoshi Kimura, Masanori Yamanaka, Akihiko Miyada, Seiya Otokita, Tatsuhiko Shitomi
  • Patent number: 10197731
    Abstract: A semiconductor photonic device includes a substrate, facet(s), and optical coupler(s) associated with the facet(s). Each optical coupler can couple an electromagnetic field incident on the respective facet towards the substrate as the electromagnetic field proceeds into the semiconductor photonic device. In some examples, each coupler has waveguides extending in a longitudinal direction and at least partly encapsulated within corresponding cladding layers. A first waveguide extends farther from the facet in the longitudinal direction than does a second waveguide. The second waveguide is located farther above the silicon substrate than is the first waveguide. The coupler can include a stack of waveguide assemblies. A lower waveguide assembly can include one waveguide. An intermediate or upper waveguide assembly can include multiple waveguides. In some examples, at least one waveguide tapers along its length.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: February 5, 2019
    Assignee: Purdue Research Foundation
    Inventors: Min Teng, Minghao Qi, Ben Niu, Justin Christopher Wirth, Sangsik Kim, Kyunghun Han, Yi Xuan, Yun Jo Lee
  • Patent number: 10193302
    Abstract: A light engine is disclosed that includes an optical bench with a mirror etched therefrom to form a single, unitary structure. The integrated mirror may therefore be pre-aligned with an associated light path to reduce light path alignment errors. In an embodiment, the optical bench includes a first end extending to a second end along a longitudinal axis, a laser diode disposed on a mounting surface adjacent the first end of the optical bench and configured to output laser light along a first light path that extends substantially along the longitudinal axis, and an integrated mirror device disposed along the light path to receive and direct the laser light along a second light path to optically couple the laser light to a photonically-enabled complementary metal-oxide semiconductor (CMOS) die, the second light path being substantially orthogonal relative to the first light path.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 29, 2019
    Assignee: Applied Optoelectronics, Inc.
    Inventors: Kai-Sheng Lin, Justin Lii, Ziliang Cai
  • Patent number: 10191217
    Abstract: A photonic circuit including a structure of coupling to an external device, the structure including a main waveguide and at least two secondary waveguides, each secondary waveguide having a first portion substantially parallel to the main guide arranged in the vicinity of the main guide to perform an evanescent wave coupling between the main guide and the secondary guide, the first portion extending in a second portion having an end opposite to the first portion defining a coupling surface of the secondary guide, emerging at the level of an external surface of the circuit.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: January 29, 2019
    Assignee: Commissariat à l'Énergie Atomique et aux Énergies Alternatives
    Inventors: Salim Boutami, Christophe Jany
  • Patent number: 10189237
    Abstract: A feedstock line comprises elongate filaments, a resin, and optical direction modifiers. The resin covers the elongate filaments. The optical direction modifiers are covered by the resin and are interspersed among the elongate filaments. Each of the optical direction modifiers has an outer surface. Each of the optical direction modifiers is configured such that when electromagnetic radiation strikes the outer surface from a first direction, at least a portion of the electromagnetic radiation departs the outer surface in a second direction that is at an angle to the first direction to irradiate, in the interior volume of the feedstock line, the resin that, due at least in part to the elongate filaments, is not directly accessible to the electromagnetic radiation, incident on the exterior surface of the feedstock line.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 29, 2019
    Assignee: The Boeing Company
    Inventors: Mark Stewart Wilenski, Michael Patrick Kozar, Samuel F. Harrison, Nick Shadbeh Evans, Faraón Torres
  • Patent number: 10180617
    Abstract: An optical modulating apparatus according to an example aspect of the invention includes an optical modulator including a plurality of Mach-Zehnder interferometers each of which including a pair of waveguides; a storage configured to store waveguide characteristic information indicating a relationship between a bias electrical signal applied to the waveguide and an optical characteristic of the waveguide; a calculation part configured to calculate, depending on a variation in the bias electrical signal applied to the waveguide included in one Mach-Zehnder interferometer of the plurality of Mach-Zehnder interferometers, a correction electrical signal applied to the waveguide included in the other Mach-Zehnder interferometer based on the waveguide characteristic information; and a signal application part configured to apply the correction electrical signal to the waveguide included in the other Mach-Zehnder interferometer.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 15, 2019
    Assignee: NEC Corporation
    Inventor: Daisuke Takei
  • Patent number: 10175438
    Abstract: An optical fiber cord includes: a multi-fiber cord section that includes an outer cover that encloses an optical fiber unit where a plurality of coated optical fibers are gathered; a plurality of branch cord sections where the coated optical fibers are housed in branch tubes; and a branch protection section that includes an exterior member that covers a branch portion where the plurality of coated optical fibers are branched from the multi-fiber cord section toward the branch cord sections.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: January 8, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Katsushi Agata, Norihiro Momotsu
  • Patent number: 10168483
    Abstract: The present invention makes it possible to prevent an optical loss in association with mode field diameter conversion and to prevent deformation in a mode field converter. The present invention includes: (a) temporarily fixing an end surface of an optical fiber (1) to an end surface of a core part (8) via a highly-viscous resin (3); and (b) after the step (a), while butting the end surface of the optical fiber (1) against the end surface of the core part (8) through the highly-viscous resin (3), fixing the optical fiber (1) to a semiconductor optical device (100) at a place away from the end surface of the optical fiber (1).
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: January 1, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Hiroki Ishihara, Ryokichi Matsumoto
  • Patent number: 10168596
    Abstract: A multi-section optical modulator and related method wherein two waveguide arms traverse a plurality of successive modulating sections. A differential drive signal is applied separately to each waveguide arm of each modulating sections in synchronism with the transmission of light along the waveguide arms, effecting a dual differential driving of each section. By suitably selecting the number of modulating sections and the section length, a high modulation bandwidth and a high modulation efficiency may be achieved simultaneously for a given peak-to-peak voltage swing of the drive signal.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: January 1, 2019
    Assignee: Elenion Technoogies, LLC
    Inventors: Christopher Williams, Mostafa Ahmed, Alexander Rylyakov, Richard C. Younce, Yang Liu, Ran Ding, Abdelrahman Ahmed
  • Patent number: 10161864
    Abstract: A display device component includes an optical waveguide having a surface; a first material formed on a portion of the surface of the optical waveguide; and a second material formed on a portion of the first material. The first material has light scattering properties.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 25, 2018
    Assignee: Xerox Corporation
    Inventors: David C. Craig, Chu-Heng Liu
  • Patent number: 10162121
    Abstract: A method and switch are provided for reconfigurable optical space switch. The method includes receiving a control signal, from a controller, to configure a path through the reconfigurable optical space switch. The method also includes applying a voltage to one or more direction changing devices at each intersection between each of the east-west optical waveguides and each of the north-south optical waveguides to form the path through the reconfigurable optical space switch. The method additionally includes receiving an optical signal in one of a plurality of passive waveguides at a beginning of the path, including the plurality of east-west optical waveguides and the plurality of north-south optical waveguides. The method further includes outputting the optical signal out on of the plurality of passive waveguides at an end of the path.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: December 25, 2018
    Assignee: NEC Corporation
    Inventors: Ivan B. Djordjevic, Shaoliang Zhang, Ting Wang
  • Patent number: 10162109
    Abstract: According to embodiments, an optical fiber may include a core portion comprising a radius rC, a centerline CL, a numerical aperture NA greater than or equal to 0.15 and less than or equal to 0.25, a graded relative refractive index profile having a maximum relative refractive index ?Cmax and an ? value greater than or equal to 1 and less than or equal to 3. The core portion may include an up-dopant with a graded concentration from the radius rC to the centerline CL and an attenuation dopant with a constant concentration from the centerline CL of the core portion to the radius rC of the core portion. The optical fiber is multi-moded for wavelengths of light within a range from 800 nm to 1350 nm and an attenuation of the optical fiber wavelengths between 800 nm and 1000 nm is greater than or equal to 0.5 dB/m.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: December 25, 2018
    Assignee: Corning Incorporated
    Inventors: Kevin Wallace Bennett, Scott Robertson Bickham, Dana Craig Bookbinder, Robert Arnold Knowlton, Ming-Jun Li, Pushkar Tandon
  • Patent number: 10156684
    Abstract: An adapter with novel alignment features engages alignment features on a plug, providing general alignment of the ferrule holders and ferrules in the plug. After the plug engages the adapter, the ferrule holders engage a second set of alignment features in the adapter to provide fine alignment for the ferrules.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 18, 2018
    Assignee: US Conec, Ltd
    Inventors: Hiep V. Nguyen, Darrell R. Childers, Michael E. Hughes, Jillcha Fekadu Wakjira, Joseph P. Howard
  • Patent number: 10156672
    Abstract: The present invention is directed to an optical fiber that includes a glass core region that has nano-sized structures configured to scatter light propagating in the glass core region. The glass core region has an average refractive index navg. The fiber includes an interior glass cladding region that has an interior cladding refractive index n2 that is less than navg. The fiber includes an outer cladding region that has an outer cladding refractive index n3 that is less than n2. A refractive index difference of n2?n3 corresponds to a bend uniformity diameter; the light exiting the outer cladding at a fiber bending location is substantially non-uniform when a bending diameter of the fiber bending location is less than the bend uniformity diameter.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 18, 2018
    Inventors: Seldon David Benjamin, Kevin Wallace Bennett
  • Patent number: 10143094
    Abstract: In a plate-type optical member for a multi-panel display device in which a plurality of individual display devices are joined and which includes junction area in which non-active areas of the individual display devices are arranged, the plate-type optical member includes plural optical fibers that have input ends opened to the lower part of the plate-type optical member and output ends opened to the upper part of the plate-type optical member and a resin support that supports the optical fibers. It is possible to guarantee image continuity in panel junction areas by disposing the plate-type optical member on the front surface of the multi-panel display device.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: November 27, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: MiHyung Chin, JeongMin Moon, SeungSoo Yang, Bora Kim
  • Patent number: 10139559
    Abstract: An MCF of the present embodiment has eight or more cores. A diameter of a common cladding is not more than 126 ?m. Optical characteristics of each core are as follows: a TL at a predetermined wavelength of 1310 nm is not more than 0.4 dB/km; an MFD at the predetermined wavelength is from 8.0 ?m to 10.1 ?m; a BL in a BR of not less than 5 mm or in the BR of not less than 3 mm and, less than 5 mm is not more than 0.25 dB/turn at the predetermined wavelength; ?0 is from 1300 nm to 1324 nm; ?cc is not more than 1260 nm; an XT or XTs at the predetermined wavelength is not more than 0.001/km.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: November 27, 2018
    Inventors: Tetsuya Hayashi, Osamu Shimakawa
  • Patent number: 10139579
    Abstract: An optical cable includes an optical core and an external sheath surrounding the optical core. The external sheath includes a first material having a first, higher fracture toughness and a second material having a second, lower fracture toughness. The first and second materials are arranged so that the second, lower fracture toughness material is accessible from outside the cable along at least one longitudinally extending area of the sheath outer surface. For accessing the optical core of the cable, a short longitudinal cut, namely, few centimeters, is made with a blade in the accessible second, lower fracture toughness material. Then, its cut edges are pulled apart by hand. The pulling force causes the lower fracture toughness material to fracture, thereby propagating the initial short cut longitudinally along the sheath through its whole thickness.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: November 27, 2018
    Assignee: PRYSMIAN S.P.A.
    Inventors: Ian Dewi Lang, Paul John Roberts, Martin Vincent Davies, Ralph Sutehall
  • Patent number: 10133005
    Abstract: A wavelength selective switch (WSS), including an input optical fiber collimation array, a first optical switching engine, a dispersion device, an optical path converter, a second optical switching engine, a third optical switching engine, and an output optical fiber collimation array. A first beam is input from a first port of the input optical fiber collimation array. The first optical switching engine performs angle deflection on the first beam on a first plane. The dispersion device demultiplexes, on a second plane, the angle-deflected first beam into multiple sub-wavelength beams. The second optical switching engine performs angle deflection on the multiple sub-wavelength beams that are obtained by demultiplexing. The dispersion device multiplexes, on the second plane, the angle-deflected multiple sub-wavelength beams. The third optical switching engine performs angle deflection on the multiplexed multiple sub-wavelength beams on the first plane.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: November 20, 2018
    Inventors: Yunfei Yan, Han Zhao, Zhiyong Feng
  • Patent number: 10133011
    Abstract: Embodiments of the present invention provide an optical fiber connector assembly, an optical fiber adapter, and an optical fiber connector to solve the problem of inconvenience in use caused by using a thread-locking manner in the prior art. The optical fiber connector, optical fiber adapter and optical fiber connector assembly provided in the present invention may be used as an outdoor connector to achieve plug and play. The optical fiber connector supports blind-mate, and the operation is convenient. Time taken to install and disassemble the optical fiber connector provided in the present invention is only ? of the time taken to install and disassemble a common thread connector.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: November 20, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xuesong Huang, Wenxin Wu, Shangjun Peng, Wei Zhang
  • Patent number: 10120148
    Abstract: Examples herein relate to devices with optical ports in fan-out configurations. An electrical device may have a substrate with an electrical port on a first face of the substrate and a plurality of optical ports on a second face of the substrate. The plurality of optical ports may be positioned in a fan-out configuration on the second face of the substrate. The electrical device may also have an integrated circuit with an electrical connection and a plurality of optical connections. A first face of the integrated circuit may be coupled to the substrate. The electrical connection of the integrated circuit may be communicatively coupled to the electrical port of the substrate, and the plurality of optical connections may be communicated coupled to the plurality of optical ports of the substrate.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: November 6, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Sagi Mathai, Michael Renne Ty Tan, Paul Kessler Rosenberg