Patents Examined by Michelle R. Connelly
  • Patent number: 10133098
    Abstract: A metal-oxide semiconductor (MOS) optical modulator including a doped semiconductor layer having a waveguide structure, a dielectric layer disposed over the waveguide structure of the doped semiconductor layer, a gate region disposed over the dielectric layer, wherein the gate region comprises a transparent electrically conductive material having a refractive index lower than that of silicon, and a metal contact disposed over the gate region. The metal contact, the gate region, and the waveguide structure of the doped semiconductor layer may be vertically aligned with each other.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: November 20, 2018
    Assignee: Futurewei Technologies, Inc.
    Inventors: Hongmin Chen, Qianfan Xu, Li Yang, Xiao Shen, Dawei Zheng, Yusheng Bai, Hongbing Lei, Eric Dudley
  • Patent number: 10126501
    Abstract: A reflective structure includes an input/output port and an optical splitter coupled to the input/output port. The optical splitter has a first branch and a second branch. The reflective structure also includes a first resonant cavity optically coupled to the first branch of the optical splitter. The first resonant cavity comprises a first set of reflectors and a first waveguide region disposed between the first set of reflectors. The reflective structures further includes a second resonant cavity optically coupled to the second branch of the optical splitter. The second resonant cavity comprises a second set of reflectors and a second waveguide region disposed between the second set of reflectors.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 13, 2018
    Assignee: Skorpios Technologies, Inc.
    Inventors: Derek Van Orden, Amit Mizrahi, Timothy Creazzo, Stephen B. Krasulick
  • Patent number: 10120259
    Abstract: An apparatus for modulating a beam of light with balanced push-pull mechanism. The apparatus includes a first waveguide comprising a first PN junction on a substrate and a second waveguide comprising a second PN junction on the silicon-on-insulator substrate. The second PN junction is a replica of the first PN junction shifted with a distance. The apparatus further includes a first source electrode and a first ground electrode coupled respectively with the first PN junction and a second source electrode and a second ground electrode coupled respectively with the second PN junction. The apparatus additionally includes a third ground electrode disposed near the second PN junction at the distance away from the second ground electrode, wherein the first ground electrode, the second ground electrode, and the third ground electrode are commonly grounded to have both PN junctions subjected to a substantially same electric field varied in ground-source-ground pattern.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: November 6, 2018
    Inventor: Masaki Kato
  • Patent number: 10109968
    Abstract: Apparatuses and associated methods of manufacturing are described that provide an adaptive connector configured to connect between a cable connector and a switch module in a datacenter. The adaptive connector includes a body defining a top, bottom, and two side portions extending between the top and bottom portion. The body of the adaptive connector defines a first end for receiving the cable connector and a second end that is received by a switch module for enabling signals to pass between the cable connector and switch module. The adaptive connector further defines a heat dissipation elements for transferring heat between the adaptive connector and an external environment of the adaptive connector.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: October 23, 2018
    Assignee: Mellanox Technologies, Ltd
    Inventors: Nimer Khazen, Andrey Ger, Hen Sery
  • Patent number: 10101547
    Abstract: This fixing structure for an optical fiber comprises a groove provided to a fiber-fixing base along the axial direction of an optical fiber to be fixed. The groove opens upward. The optical fiber is arranged within the groove along the groove. The optical fiber is fixed to the inner surface of the groove using an adhesive. The inner-side surfaces of the groove that face each other serve as fixing surfaces for the optical fiber. In other words, the optical fiber is fixed to the fixing surfaces that are the inner-side surfaces of the groove and that face each other using the adhesive. A space in which the fiber-fixing base and the adhesive are not bonded is formed in the vertical direction of the optical fiber. In other words, a space is provided in a vertical direction that is substantially perpendicular to the fixing direction in which the optical fiber is fixed.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: October 16, 2018
    Inventor: Jun Miyokawa
  • Patent number: 10101531
    Abstract: A polarization mode converter includes a rectangular waveguide, a first tapered waveguide, and a second tapered waveguide. A height of the rectangular waveguide is a first height (H1). A side of the first tapered waveguide is coupled to the rectangular waveguide. A width of the first tapered waveguide changes gradually. A height of the first tapered waveguide is a second height (H2), and H2 is less than H1. The second tapered waveguide is detached from the rectangular waveguide and the first tapered waveguide. A width of the second tapered waveguide changes gradually. A height of the second tapered waveguide is H1. The first tapered waveguide is located between the rectangular waveguide and the second tapered waveguide.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: October 16, 2018
    Inventor: Xin Tu
  • Patent number: 10095020
    Abstract: A probe can be provided having a grating adapted for color spectrally encoded imaging. The probe can include a waveguide configuration, a light focusing configuration, and a grating configuration that can have a first grating pattern and a second grating pattern. The waveguide configuration can be configured and/or structured to cause to propagate a light having a first wavelength and a light having a second wavelength to propagate from the waveguide component, and the light focusing and waveguide configurations can provide the light to be incident on the grating configuration. The grating configuration can be configured and arranged such that the light having the first wavelength is diffracted by the first grating pattern to substantially the same location as the light having the second wavelength is diffracted by the second grating pattern.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: October 9, 2018
    Assignees: Canon U.S.A., Inc., The General Hospital Corporation
    Inventors: Guillermo J. Tearney, Dongkyun Kang, Mitsuhiro Ikuta
  • Patent number: 10088635
    Abstract: A connector assembly for a hybrid cable includes: a housing, comprising a base; at least one discrete connector mounted in the base or at least one connector that is at least partially integrated in the base, configured to receive at least one fiber from the hybrid cable; and at least one electrical interface, configured to receive at least one wire from the hybrid cable.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 2, 2018
    Inventors: Donald Lee Sipes, Jr., John David Read
  • Patent number: 10090286
    Abstract: Package structures and methods are provided to integrate optoelectronic and CMOS devices using SOI semiconductor substrates for photonics applications. For example, a package structure includes an integrated circuit (IC) chip, and an optoelectronics device and interposer mounted to the IC chip. The IC chip includes a SOI substrate having a buried oxide layer, an active silicon layer disposed adjacent to the buried oxide layer, and a BEOL structure formed over the active silicon layer. An optical waveguide structure is patterned from the active silicon layer of the IC chip. The optoelectronics device is mounted on the buried oxide layer in alignment with a portion of the optical waveguide structure to enable direct or adiabatic coupling between the optoelectronics device and the optical waveguide structure. The interposer is bonded to the BEOL structure, and includes at least one substrate having conductive vias and wiring to provide electrical connections to the BEOL structure.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: October 2, 2018
    Assignee: International Business Machines Corporation
    Inventors: Russell A. Budd, Mounir Meghelli, Jason Scott Orcutt, Jean-Olivier Plouchart
  • Patent number: 10082625
    Abstract: A system comprises a first optical component comprising a component body; at least a first waveguide formed in the component body, wherein the first waveguide is substantially mirror-symmetrical in shape relative to a line at or near the center of the first waveguide; and a self-alignment feature configured to assist in optically-coupling the first waveguide with a second waveguide located outside of the component body.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Russell A. Budd, Daniel M. Kuchta, Benjamin Giles Lee, Laurent Schares, Clint Lee Schow
  • Patent number: 10078189
    Abstract: An optical module includes a lens sheet having one or more lenses, a substrate having a photoelectric conversion device mounted on a first face thereof and having a first penetrating hole formed therethrough between the photoelectric conversion device and the one or more lenses, and an adhesive layer configured to bond a face of the lens sheet to a second face of the substrate, wherein the adhesive layer has a second penetrating hole formed therethrough between the one or more lenses and the photoelectric conversion device, and a pathway is provided to connect a space constituted by the first penetrating hole and the second penetrating hole to an outside of the space.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: September 18, 2018
    Inventors: Takuya Uchiyama, Shinichiro Akieda, Mariko Kase
  • Patent number: 10073220
    Abstract: Provided is an optical coupler configured to cause an NA of light, which exits a taper fiber, to be smaller as compared with a conventional optical coupler. A taper fiber has a high refractive index part which is provided inside a core of the taper fiber and which has a refractive index smaller than a refractive index ncore of the core. An exit end surface of each GI fiber is bonded to an entrance end surface of the taper fiber so that at least a part of the exit end surface of the each GI fiber overlaps with a section of the high refractive index part. A relative refractive index difference of the taper fiber is smaller than 0.076%.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 11, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Tomoyuki Fujita, Kentaro Ichii, Ken Katagiri, Kenichi Ohmori, Rintaro Kitahara, Tatsuya Kishi
  • Patent number: 10061085
    Abstract: An optical switching system comprising a switching cell having first and second fixed-position bus waveguides and a moveable shunt waveguide is disclosed. The first bus waveguide includes an input and a first output. The second bus waveguide includes a second output. When the switching cell is in its unswitched state, the shunt waveguide is not optically coupled with either bus waveguide and a light signal can pass from the input to the first output while remaining in the first bus waveguide. When the switching cell is in its switched state, the shunt waveguide is optically coupled with both bus waveguides such that the light signal is coupled out of the first bus waveguide and into the second bus waveguide via the shunt waveguide. As a result, the light signal can pass from the input to the second output while bypassing the first input.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: August 28, 2018
    Inventors: Ming C. Wu, Sangyoon Han, Tae Joon Seok, Niels Quack, Byung-Wook Yoo
  • Patent number: 10054747
    Abstract: A push-pull type fiber optic connector assembly includes a fiber optic connector connectable to fiber optic adapter and including connector housing, latch having elastic arm extended from top of connector housing for locking connector housing to fiber optic adapter, recessed portion located at bottom side relative to latch, pressure rod extended from recessed portion, fiber ferrule mounted in cable passage inside connector housing, connector sub assembly mounted in connector housing to hold fiber ferrule and fiber optic cable having fiber core inserted through fiber ferrule, and operating handle including sliding cap movably capped on connector housing, push member having push arm forwardly extended from sliding cap, cam located at one side of push arm and inserted into recessed portion of fiber optic connector, and handle shaft extended from sliding cap to pull sliding cap backwards in forcing down wedge-shaped pressure rod for disengaging fiber optic connector from fiber optic adapter.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 21, 2018
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventor: Jhih-Ping Lee
  • Patent number: 10048455
    Abstract: Embodiments herein include an optical system that passively aligns a fiber array connector (FAC) to a waveguide in a photonic chip. An underside of the FAC is etched to include multiple grooves along a common axis or plane. Some of these grooves are used to attach optical cables, or more specifically, the fibers of optical cables to the FAC. To do so, the fibers are placed in the grooves and a lid is disposed on the underside of the fibers to hold the fibers in the grooves. The optical system uses other grooves in the FAC to mate with ridges in the photonic chip in order to mechanically couple the FAC to the photonic chip. By registering respective ridges in the photonic chip with grooves in the FAC, the FAC is passively aligned to the photonic chip along at least one optical axis.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: August 14, 2018
    Assignee: Cisco Technology, Inc.
    Inventor: Stefan Martin Pfnuer
  • Patent number: 10031292
    Abstract: Techniques for forming a facet optical coupler that includes a waveguide formed over a trench of a silicon substrate are described. The trench is formed in a silicon substrate and then filled with a dielectric material. The waveguide is patterned on the dielectric material over the trench such that the waveguide is disposed a distance from the first surface. A first end of the waveguide has a first size and a second end of the waveguide distal the first end has a second size different than the first size. A material of the waveguide and the first size define a mode size of the waveguide.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: July 24, 2018
    Assignee: Acacia Communications, Inc.
    Inventor: Long Chen
  • Patent number: 10031282
    Abstract: An optical fiber containing alkali metal elements or the like in which Rayleigh scattering loss can be reduced is provided. An optical fiber includes a core composed of silica glass and a cladding which surrounds the core, has a refractive index lower than a refractive index of the core, and is composed of silica glass containing fluorine. The core contains a first group of dopants and a second group of dopants having a diffusion coefficient lower than a diffusion coefficient of the first group of dopants. The difference between the maximum value and the minimum value of residual stress in the optical fiber is 150 MPa or less.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: July 24, 2018
    Inventors: Hirotaka Sakuma, Yoshiaki Tamura, Keisei Morita
  • Patent number: 10012806
    Abstract: The application provides methods of forming a fiber coupling device comprising a substrate, the substrate having a substrate surface and at least one optoelectronic and/or photonic element, and further comprising at least one fiber coupling alignment structure that is optically transmissive. One method comprises a) applying a polymerizable material to the substrate surface, b) selectively polymerizing, using a method of 3D lithography, a region of the polymerizable material so as to convert the region of the polymerizable material into a polymer material, thereby forming at least one fiber coupling alignment structure, and c) cleaning the substrate and the polymer material from remaining non-polymerized polymerizable material, thereby exposing the at least one fiber coupling alignment structure of the fiber coupling device.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 3, 2018
    Assignee: Corning Optical Communications LLC
    Inventors: Michael de Jong, Davide Domenico Fortusini, Andreas Matiss, Martin Spreemann, Eric Stephan ten Have
  • Patent number: 9995878
    Abstract: A polarization splitter/combiner and method of forming the same includes a first waveguide having a direction of propagation in a first direction. The height of the first waveguide is greater than the width of the first waveguide. A second waveguide is in proximity to the first waveguide and has a direction of propagation substantially parallel to the first direction in an interaction region. The second waveguide includes a first portion having a greater than the width of the first portion and a second portion having a width greater than a height of the second portion.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: June 12, 2018
    Assignee: International Business Machines Corporation
    Inventors: Tymon Barwicz, Wesley D. Sacher
  • Patent number: 9995899
    Abstract: An optical fiber distribution or breakout cable for serving multiple customer premises in a multi-dwelling unit (MDU) building. The cable contains a number of bend insensitive fibers each having a different colored coating for identification. A jacket of a flame-retardant polymer compound is extruded to surround the fibers. The jacket is sufficiently opaque to hide the color coated fibers at least partially from view, and the outer diameter of the jacket is not more than about 3.5 mm. A procedure for installing the cable through a hallway of a MDU building so as to lessen any negative visual impact of the installation on observers nearby is also disclosed.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: June 12, 2018
    Assignee: OFS FITEL, LLC
    Inventors: Mark A Boxer, Daniel Hendrickson, Peter A Weimann