Input/output Coupler Patents (Class 385/31)
  • Patent number: 11126925
    Abstract: This disclosure relates to quantum electronic devices for storing qubits. In particular, this disclosure relates to a quantum electronic device comprising a carbon nanosphere adapted to store a qubit represented by an electron spin and a control and readout device to set the qubit and read the qubit stored on the carbon nanosphere. Qubits stored on carbon nanospheres have a long electron spin lifetime at room temperature. This disclosure further relates to a method for quantum computing. The method comprises storing a qubit represented by an electron spin on a carbon nanosphere, performing a quantum operation on the qubit to generate a resulting qubit and reading the resulting qubit from the nanosphere. There is further provided a spintronic device comprising multiple carbon nanospheres adapted to provide a qubit represented by an electron spin in that carbon nanosphere and a control device to facilitate interaction between the qubits to perform a quantum operation.
    Type: Grant
    Filed: December 3, 2016
    Date of Patent: September 21, 2021
    Assignee: The University of Sydney
    Inventors: Balint Nafradi, Mohammad Choucair
  • Patent number: 11128377
    Abstract: The method of transmitting data includes encoding, at an optical line terminal, data to be transmitted over a plurality of wavelength channels; providing the encoded data to corresponding lasers as modulation inputs, to enable the lasers to generate optical signals representing the data; multiplexing the optical signals; and equalizing the multiplexed optical signals for transmission via an optical transmission link. The method of receiving data includes de-multiplexing, at an optical network unit, optical signals received from an optical transmission link; selecting, from the de-multiplexed optical signals, an optical signal corresponding to a particular wavelength channel; converting the selected optical signal into electric signals; and decoding the electric signal to determine the data.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 21, 2021
    Assignee: ALCATEL LUCENT
    Inventor: Zhensen Gao
  • Patent number: 11112610
    Abstract: An image display device projecting an image to a user includes: an image generation unit that generates image light; a projection optical unit that projects the image light generated by the image generation unit; an image light duplication unit that duplicates and emits the image light projected by the projection optical unit; and a light-guiding unit that projects the image light duplicated by the image light duplication unit to a user, in which the projection optical unit includes at least one projection lens, and in which an interval at which the image light duplication unit duplicates the image light is smaller than an outer diameter of the projection lens.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: September 7, 2021
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Takuma Kuno, Ryuji Ukai, Toshiteru Nakamura, Masahito Uchiyama, Takahiro Mouri
  • Patent number: 11105981
    Abstract: Detachable optical connectors for optical chips and methods of their fabrication are disclosed. In one embodiment, an optical connector includes a ferrule that supports ferrule waveguides. The optical connector further includes a waveguide support coupled to the ferrule and that supports transition waveguides that are optically coupled to the ferrule waveguides. Ends of the ferrule waveguides are exposed at one end of the ferrule to define a first pitch while ends of the second waveguides are exposed at a chip coupling surface of the waveguide support. The transition waveguides provide at least one type of transition for the guided light traveling within the ferrule waveguides to enable either edge coupling, surface coupling or evanescent coupling to chip waveguides of an optical chip. The transition can include a change in mode-field diameter, direction of the guided light, and/or pitch.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: August 31, 2021
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Lars Martin Otfried Brusberg, Ximao Feng, Wen-Lung Kuang
  • Patent number: 11073648
    Abstract: A light guide element is adapted to be used in an electronic device including a light emitting unit that has at least one light emitting element. The light guide element includes a base portion and a plurality of light guide bodies. The base portion includes a light entry surface for incidence of light emitted by the light emitting unit and at least one side surface connected to the light entry surface. The light guide bodies are disposed on the at least one side surface. Each of the light guide bodies is formed with at least three light exit surfaces. Each of the light exit surfaces has an extension direction. The extension direction and the at least one side surface of the base portion form therebetween an angle being between 10° and 85°.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: July 27, 2021
    Assignee: G. SKILL INTERNATIONAL ENTERPRISE CO., LTD.
    Inventor: Chiung-Huang Huang
  • Patent number: 11067737
    Abstract: A one-way see-through illumination device includes a light guide, a light source at an edge of the light guide and a pattern of pixels on a surface of the light guide. The light guide has an illumination surface and a non-illumination surface opposite to the illumination surface. The light source is configured to inject light into the edge of the light guide. The pattern of pixels and the light guide are arranged to generate transparent illumination by the frustration of total internal reflection of light injected into the light guide such that light from the light source is emitted through the illumination surface. The pixels are arranged to prevent the generation of a diffraction grating in the light guide.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: July 20, 2021
    Assignee: NANOPATH, INC.
    Inventor: Kevin Donahue
  • Patent number: 11054571
    Abstract: [Problem] To propose a head-mounted display capable of restraining deformation or breakage of a connection member caused by concentration of an external force on the connection member. [Solution] A head-mounted display includes a frame worn on the head of a viewer and having a front part disposed in front of the viewer, and an image display device connected to a central part of the front part. The image display device includes two right and left optical modules each including an image generation device and a light guide member that is connected to the image generation device and is disposed closer as a whole to a center of the face of the viewer than the image generation device, and includes a connection member connecting the image display device to the front part. A part of the image display device is disposed so as to face a part of the front part in a front-rear direction with a predetermined gap interposed therebetween.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 6, 2021
    Assignee: SONY CORPORATION
    Inventor: Toshimi Kobayashi
  • Patent number: 11035548
    Abstract: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: June 15, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Ali Naqavi, Harry Atwater
  • Patent number: 11035985
    Abstract: A dual-lenslet array photonic integrated circuit (PIC) imager includes a PIC and top and bottom substrate spacers. A first optical prism couples a first lenslet array to a first-side edge of the PIC. A second optical prism couples a second lenslet array to a second-side edge of the PIC. Lenslets of the first lenslet array and respective lenslets of the second lenslet array are coupled to respective waveguides embedded in the in the PIC.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 15, 2021
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Guy Chriqui, Chad E. Ogden, Richard L. Kendrick, Katherine Emily Badham
  • Patent number: 11025030
    Abstract: An optical module includes a circuit board, an optical fiber, an optical fiber monitoring chip, a laser chip, a laser driving chip and a lens assembly. A bottom surface of the lens assembly is covered above the laser chip and the optical monitoring chip. A groove is on a top surface of the lens assembly. A bottom of the groove protrudes to form a first interface and a second interface. The laser chip is configured to emit light. The first interface is configured to reflect the emitted light to obtain first reflected light. The second interface is configured to reflect a portion of the first reflected light to obtain a second reflected light and refract another portion of the first reflected light to obtain a first refracted light. The second reflected light is transmitted to the optical monitoring chip. The first refracted light is transmitted to the optical fiber.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: June 1, 2021
    Assignee: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES CO., LTD.
    Inventors: Xuxia Liu, Yan Zhong
  • Patent number: 11009206
    Abstract: An optical system includes optical fibers, a decoupling surface, an intersecting surface and a connecting portion. The optical fibers are arranged in at least one row. Each of the optical fibers includes a coupling surface onto which light from a light source is received. Light is directed through the optical fibers along an optical main axis. Light emitted from the optical fibers is directed onto a decoupling surface. The connecting portion is planar and is disposed between the decoupling surface and the optical fibers. The intersecting surface bounds the decoupling surface and is parallel to the optical main axis. Each of the optical fibers has an intersecting face oriented parallel to the optical main axis and parallel to the intersecting surface. The intersecting surface and the intersecting faces of the optical fibers generate a sharp outer edge of a light pattern formed by light emitted from the optical system.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: May 18, 2021
    Assignee: Osram GmbH
    Inventors: Andreas Hartmann, Thomas Feil
  • Patent number: 11002914
    Abstract: Devices and systems to perform optical alignment by using one or more liquid crystal layers to actively steer a light beam from an optical fiber to an optical waveguide integrated on a chip. An on-chip feedback mechanism can steer the beam between the fiber and a grating based waveguide to minimize the insertion loss of the system.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: May 11, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Roy Meade, Gurtej Sandhu
  • Patent number: 10996411
    Abstract: The invention relates to an optical assembly (100) comprising a first optical fiber (101) propagating coherent light in a predetermined direction (P) into an input end (110) of the optical assembly (100), said optical fiber having a core and a cladding; a heat sink (111) surrounding the optical fiber (101) at the input end (110); and a lens (120) arranged after the heat sink (111) in the propagating direction (P). The optical assembly (100) further comprises a filter (130) arranged after the lens (120), wherein the filter (130) has a reflective surface (131) arranged to transmit light having one or more desired wavelengths and to reflect one or more undesired wavelengths back through the lens (120). The invention further relates to a method for separating desired and undesired wavelengths.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 4, 2021
    Assignee: OPTOSKAND AB
    Inventors: Simon Aleryd, Stuart Campbell, Olof Sallhammar
  • Patent number: 10996403
    Abstract: An optical fiber mounting method that mounts a plurality of optical fibers on a substrate includes: bundling the optical fibers together with a bundling member; adjusting a height of the bundling member from a surface of the substrate or an angle of inclination of the bundling member relative to the surface of the substrate; bringing end faces of the optical fibers bundled with the bundling member into contact with end faces of optical waveguides on the substrate, the optical waveguides respectively corresponding to the optical fibers; and bonding the optical fibers to the substrate, in a state where the end faces of the optical fibers are in contact with the end faces of the optical waveguides.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 4, 2021
    Assignee: FUJITSU LIMITED
    Inventors: Takayoshi Matsumura, Naoaki Nakamura
  • Patent number: 10996396
    Abstract: The present invention, disclose an endcap comprising: a. a first part being at least partially symmetrical about a main axis, said first part being fused to an optical fiber at a proximal end thereof such that said main axis is alignable with an optical axis of the optical fiber beam; and, b. a second part connecting to said first part at a distal end of said first part, wherein said second part protrudes from said first part, such that said second part forms a protruding bonding area, which is perpendicular to said main axis, for attaching said endcap to a fixture attachment area of a fixture apparatus, said fixture attachment area is perpendicular to said main axis, wherein said endcap is inserted at least partially inside said fixture apparatus, whereby, said endcap keeps said optical fiber beam aligned and minimizes angular diversion from an original alignment.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: May 4, 2021
    Assignee: ELBIT SYSTEMS ELECTRO-OPTICS - ELOP LTD.
    Inventors: Semion Kizhner, Amir Hertzog, Rina Cohen, Daniel Wormser, Tal Regev
  • Patent number: 10984735
    Abstract: Embodiments of a device and a method of tuning white point values of light distributed by a backlight unit of a display device are described. The device includes a backlight unit, an image generating unit, and a patterned layer. The backlight unit includes a light source unit and an optical processing unit having a quantum dot film coupled to the light source unit. The image generating unit includes a display screen. The backlight unit is configured to distribute light to the display screen and the patterned layer is configured to tune white point values of the distributed light to a desired white point value in order to achieve substantially uniform white point values across the display screen.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: April 20, 2021
    Assignee: Nanosys, Inc.
    Inventors: Jian Chen, Ernest Lee, Robert E. Wilson, Steven Gensler
  • Patent number: 10969590
    Abstract: A near-eye display has a light-guide optical element (LOE) with two major parallel external surfaces. An image projector introduces image illumination into the LOE so as to propagate by internal reflection. The image projector includes one or more light-generating laser diode operated by a controller. A coupling-out arrangement includes a set of mutually-parallel, partially-reflective surfaces associated with the LOE at an oblique angle to the major external surfaces for coupling the illumination out of the LOE towards the eye of the observer. The light-generating laser diode has a characteristic variation of coherence length of generated light as a function of diode actuation power. The controller actuates the laser diode at a level of diode actuation power that generates light with a coherence length that is less than twice a spacing between adjacent partially-reflective surfaces of the coupling-out arrangement.
    Type: Grant
    Filed: September 8, 2019
    Date of Patent: April 6, 2021
    Assignee: Lumus Ltd.
    Inventors: Yochay Danziger, Ronen Chriki, Nitzan Livneh
  • Patent number: 10942316
    Abstract: A fiber array unit (FAU) connector includes a support substrate having a rear-end section and an elevated front-end section. The front-end section has a top surface with fiber grooves that support bare glass sections of optical fibers, which have respective fiber end faces that reside at a front end face defined by the front-end section. Two alignment pins reside in parallel alignment pin channels on opposite sides of the fiber grooves. The alignment pin channels terminate at respective front-end recessed surfaces that are axially spaced from the front end face. The alignment pins extend from the alignment pin channels to be even with the front end face. A cover secured to the front-end section holds the bare glass sections of the optical fibers and the alignment pins in place. Alignment sleeves are used to establish pin-to-pin alignment of confronting FAU connectors.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: March 9, 2021
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Ximao Feng, Shudong Xiao, Andy Fenglei Zhou
  • Patent number: 10935497
    Abstract: A highly reflective light-guide system has a highly reflective light-guide surface for reflecting light that has been emitted from a sample and has entered from an entry port opposing a window material and propagating the same to an exit port opposing a light reception surface of a photodetector. An optical filter is provided in a space surrounded by the window material, the photodetector, and the highly reflective light-guide system and transmits the signal luminescence to be measured that is emitted from the sample between the window material and photodetector. The optical filter is fixed to the window material or photodetector by an adhesive, and the peripheral shape of the optical filter is smaller than the shape of the inside of a fitting part to which the optical filter is fitted and that is formed on the highly reflective light-guide system.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 2, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Shunichiro Nobuki, Muneo Maeshima, Kenta Imai
  • Patent number: 10859748
    Abstract: An illumination fiber optics is provided that includes an optical fiber, configured to receive illumination light at a proximal end from a light source; and a light-scattering element, at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle. The illumination fiber optics can be prepared by providing an optical fiber, configured to receive illumination light at a proximal end from a light source; and creating a light-scattering element at a distal end of the optical fiber, configured to receive the illumination light from the optical fiber at a proximal end and to emit the illumination light at a distal end in a wide angle.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 8, 2020
    Assignee: Alcon Inc.
    Inventors: Alireza Mirsepassi, Ronald T. Smith, Michael J. Papac, Chenguang Diao
  • Patent number: 10862584
    Abstract: A system for monitoring a signal on an optical fiber includes a fiber optic connector having a housing couplable to a receptacle. An optical fiber that transmits a first optical signal has first fiber core at least partially surrounded by a cladding and has a first end terminating proximate the housing. The first optical signal is transmitted along the first fiber core. An optical tap has a first tap waveguide arranged and is configured to receive at least part of the first optical signal as a first tap signal. The first tap waveguide comprises an output port for the first tap signal for directing the tap signal to a detector unit. In other embodiments, a detector unit detects light from the optical signal that is propagating along the fiber cladding.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: December 8, 2020
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Koen Huybrechts, Jan Watté, Stefano Beri
  • Patent number: 10811839
    Abstract: The present disclosure is generally directed to a TO can laser package that includes an off-center focus lens integrated into a lens cap to compensate displacement of an associated laser diode. The TO can laser package includes a TO header with a mounting structure for directly electrically coupling an associated laser diode to electrical leads/pins without the use of an intermediate interconnect. The mounting structure displaces the laser diode such that an emission surface, and more particularly, an origin thereof, is displaced/offset relative to a center of the TO header. The integrated lens cap includes a focus lens with an optical center that is offset from a center of the TO header at a distance that is substantially equal to the displacement of the laser diode. Thus, the displacement of the laser diode is compensated for by the off-center focus lens to minimize or otherwise reduce optical misalignment.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: October 20, 2020
    Assignee: Applied Optoelectronics, Inc.
    Inventors: I-Lung Ho, Chong Wang, Shih-Chia Liu
  • Patent number: 10791923
    Abstract: An optical probe includes first and second light guiding components, and a ball lens arranged along an optical axis and enclosed in a sheath having asymmetric optical power. The probe transmits at least two light beams including first and second beams each having a different wavelength. The ball lens has a curved surface and an angled surface arranged such that light is reflected off from the angled surface and focused by the curved surface at a working distance with a beam waist profile having lateral and longitudinal directions. Beam waist locations of the first and second beams are different from each other, and the beam waist profiles of the first and second beams in the lateral direction differs less than the beam waist profiles in the longitudinal direction. This ball lens design compensates for the sheath asymmetric optical power and provides balanced astigmatism and substantially achromatic performance.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 6, 2020
    Assignee: Canon U.S.A., Inc.
    Inventor: Tzu-Yu Wu
  • Patent number: 10768415
    Abstract: A display device and a light source are provided. The display device includes a display panel and a first photonic crystal layer arranged at a light-emitting side of the display panel. The first photonic crystal layer is configured to enable incident light to exit along a Z direction, the Z direction being a thickness direction of the first photonic crystal layer.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: September 8, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weipin Hu, Jun Wu, Lianjie Qu, Yinglong Huang
  • Patent number: 10729498
    Abstract: The present disclosure relates to methods and systems for removing a vascular obstruction in a subject using a combination of thrombolytic and laser ablation therapy. Treatment methods include positioning a catheter adjacent to an obstruction within a vessel of a subject. A portion of the obstruction may be ablated by delivering laser energy through the optical fibers to the distal end of the catheter, where the optical fibers are exposed, and circulating a fluid containing one or more thrombolytic agents to a remaining portion of the obstruction for a predetermined amount time. Fluid containing one or more thrombolytic agents capable of dissolving a remaining portion of the obstruction may be circulated through the fluid delivery lumen and removed through the fluid removal lumen.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: August 4, 2020
    Assignee: THE SPECTRANETICS CORPORATION
    Inventor: Justus Gross
  • Patent number: 10734943
    Abstract: A system for transmitting power to a remote equipment, the system including a first laser source that generates a first laser beam; a first tracking device operatively connected to the first laser source, wherein the first tracking device controls a direction of the first laser beam; and a first photovoltaic device operatively connected to the remote equipment located remotely from the first laser source and the first tracking device, wherein the first photovoltaic device includes a semiconductor material that generates an electric current in response to absorbing the first laser beam, and wherein a first wavelength of the first laser beam is within an eye-safer range.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: August 4, 2020
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Jesse A. Frantz, Jason D. Myers, Steven R. Bowman, L. Brandon Shaw, Jasbinder S. Sanghera
  • Patent number: 10718900
    Abstract: A method includes providing a semiconductor wafer that includes at least one optical waveguide extending in a longitudinal direction. Stealth dicing laser processing is applied to the semiconductor wafer by producing defect regions into the wafer along at least one cutting line. The cutting line is oblique to the longitudinal direction of the at least one optical waveguide. The wafer is expanded to induce fracture thereof at the at least one cutting line, thereby producing an end surface of the at least one optical waveguide. The end surface is oblique to the longitudinal direction of the at least one optical waveguide.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 21, 2020
    Assignee: STMICROELECTRONICS S.R.L.
    Inventor: Mark Andrew Shaw
  • Patent number: 10673531
    Abstract: An apparatus having first and second transceiver cells formed in a single integrated circuit. In one example embodiment, an apparatus includes a first transceiver cell including a first set of components configured to enable communication on a first communication link in a network and a second transceiver cell formed underneath the first transceiver cell in a single integrated circuit (IC). The second transceiver cell is optically isolated from the first transceiver cell. The second transceiver cell includes a second set of components configured to enable communication on a second communication link in the network.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: June 2, 2020
    Assignee: II-VI Delaware Inc.
    Inventor: David Allouche
  • Patent number: 10613275
    Abstract: In an optical system that includes a coherent light source and an optical waveguide, a pulse width used by the optical waveguide to project image frames on a display is changed on a frame-by-frame basis. By changing the pulse width for each image frame, the locations and characteristics of visible interference patterns on the display are changed for each successive image frame. Changing the interference patterns for each image frame may result in the interference patterns being less detectable to a viewer. The change in pulse width for each image frame may be fixed or dynamic, and may be made in response to interference patterns being detected on the display.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Scott Woltman, Tuomas Vallius, Simo Tammela
  • Patent number: 10603109
    Abstract: This invention relates to an advance in the delivery of laser beams to internal surgical sites using optical fibers with a novel distal tip design made using a fusion assembly procedure suitable for directing laser beams out of the side of an optical fiber. This side-fire fiber delivery tip assembly is fabricated by fusing a transparent tube onto the distal ends of a laser beam delivery fiber and an associated coaxial stub fiber that have beveled and parallel end faces that meet inside of the transparent tube. The result is a rugged fiber delivery tip assembly that is almost entirely solid, except for a very narrow gap between the beveled end surfaces of the two fibers. A loose fitting transparent capsule is placed over this fiber tip to contain a transparent perfluorocarbon lubricating oil or a perfluorocarbon heat-transfer agent that serves as a cooling agent for the fiber tip assembly.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: March 31, 2020
    Inventor: Douglas Arthur Pinnow
  • Patent number: 10598850
    Abstract: A lighting unit includes a single core optical fiber, a light converter, and an exit end. The single core optical fiber includes an incident end and a distal end, and is configured to guide primary light, which is a laser light incident on the incident end, to the distal end. The light converter is formed inside the optical fiber, and is configured to receive the primary light guided by the optical fiber, convert optical properties of at least part of the received primary light and generate secondary light. The exit end is arranged at the distal end of the optical fiber, and is configured to emit the secondary light externally as illumination light.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: March 24, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Satoshi Ohara
  • Patent number: 10581216
    Abstract: An optical communication substrate includes a plurality of cores to communicate optical signals; a rectangular input delivering a pump laser, and a shaped portion to combine the optical signals and the pump laser into a ring geometry at an output.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: March 3, 2020
    Assignee: NEC Corporation
    Inventors: Fatih Yaman, Shaoliang Zhang, Eduardo Mateo Rodriquez, Takanori Inoue, Yoshihisa Inada, Takaaki Ogata
  • Patent number: 10571636
    Abstract: A light-transmitting substrate has at least a first and a second major external surface. An electronic display source emanates light waves. A coupling-in optical arrangement couples light waves from the electronic display source into the light-transmitting substrate to effect total internal reflection of the coupled-in light waves between the major external surfaces of the light-transmitting substrate. An optical element is deployed in an optical path for light waves to traverse from the electronic display source into the light-transmitting substrate. The optical element defines a field curvature that causes light rays of the traversing light waves to diverge or converge. A lens is deployed in the optical path and reduces the field curvature. The electronic display source has a curvature that is matched to the reduced field curvature to counteract the divergence or convergence of the light rays caused by the reduced field curvature.
    Type: Grant
    Filed: May 26, 2019
    Date of Patent: February 25, 2020
    Assignee: Lumus Ltd.
    Inventor: Jonathan Gelberg
  • Patent number: 10564360
    Abstract: The inventive optical fiber coupler array is capable of providing a low-loss, high-coupling coefficient interface with high accuracy and easy alignment between a plurality of optical fibers (or other optical devices) with a first channel-to-channel spacing, and an optical device having a plurality of closely-spaced waveguide interfaces with a second channel-to-channel spacing, where each end of the optical fiber coupler array is configurable to have different channel-to-channel spacing, each matched to a corresponding one of the first and second channel-to-channel spacing. The novel optical coupler array includes a plurality of waveguides (at least one of which may optionally be polarization maintaining), that comprises at least one gradually reduced vanishing core fiber, at least in part embedded within a common housing structure. Alternatively, the novel coupler array may be configured for utilization with at least one of an optical fiber amplifier and an optical fiber laser.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: February 18, 2020
    Assignee: Chiral Photonics, Inc.
    Inventors: Victor Il'ich Kopp, Daniel Neugroschl
  • Patent number: 10558003
    Abstract: [Object] To provide an optical waveguide sheet including a mirror structure that can be fabricated at low cost and has a high smoothness, an optical transmission module, and a manufacturing method for an optical waveguide sheet. [Solving Means] An optical waveguide sheet according to the present technology includes a core, a cladding, and a mirror structure. The core extends in a first direction parallel to a first plane. The cladding is provided around the core. The mirror structure has a concave shape which is formed from the cladding to the core, the mirror structure including a first inclined surface that is parallel to a second direction perpendicular to the first direction and parallel to the first plane, is inclined with respect to the first plane, and includes a core region in which the core is exposed, and a bottom surface parallel to the first plane.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: February 11, 2020
    Assignee: SONY CORPORATION
    Inventor: Hiizu Ootorii
  • Patent number: 10551558
    Abstract: A lighting unit includes a single core optical fiber, a light converter, and an exit end. The single core optical fiber includes an incident end and a distal end, and is configured to guide primary light, which is a laser light incident on the incident end, to the distal end. The light converter is formed inside the optical fiber, and is configured to receive the primary light guided by the optical fiber, convert optical properties of at least part of the received primary light and generate secondary light. The exit end is arranged at the distal end of the optical fiber, and is configured to emit the secondary light externally as illumination light.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: February 4, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Satoshi Ohara
  • Patent number: 10510567
    Abstract: Embodiments described herein include integrated systems used to directly monitor a substrate temperature during a plasma enhanced deposition process and methods related thereto. In one embodiment, a substrate support assembly includes a support shaft, a substrate support disposed on the support shaft, and a substrate temperature monitoring system for measuring a temperature of a substrate to be disposed on the substrate support. The substrate temperature monitoring system includes a optical fiber tube, a light guide coupled to the optical fiber tube, and a cooling assembly disposed about a junction of the optical fiber tube and the light guide. Herein, at least a portion of the light guide is disposed in an opening extending through the support shaft and into the substrate support and the cooling assembly maintains the optical fiber tube at a temperature of less than about 100° C. during substrate processing.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 17, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Yizhen Zhang, Rupankar Choudhury, Jay D. Pinson, II, Jason M. Schaller, Hanish Kumar Panavalappil Kumarankutty
  • Patent number: 10489924
    Abstract: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: November 26, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Ali Naqavi, Harry Atwater
  • Patent number: 10475996
    Abstract: An optical-readout synaptic device based on SiOxNy and a preparation method thereof are provided. The device includes a surface plasmonic waveguide and a memristor; the surface plasmonic waveguide has a vertical three-layer structure that a second metal layer, a SiNx dielectric layer and a first metal layer are successively arranged from top to bottom; the memristor has a vertical four-layer structure that a second electrode layer, a second resistive layer, a first resistive layer and a first electrode layer are successively arranged from top to bottom; the memristor is embedded in the surface plasmonic waveguide; and, the first resistive layer and the second resistive layer of the memristor serve as an optical signal transmission channel that is horizontally connected with the SiNx dielectric layer of the surface plasmonic waveguide. The present invention realizes an optical-readout of synaptic weight and has incomparable advantages over a conventional electrical-readout synaptic device.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: November 12, 2019
    Assignee: University of Electronic Science and Technology of China
    Inventors: Wei Li, Yicheng Chen, Dongyang Li, Hao Zhong, Deen Gu, Yadong Jiang
  • Patent number: 10473923
    Abstract: An optical device includes a light source, which is configured to emit a beam of light at a given wavelength, and at least one scanning mirror configured to scan the beam across a target scene. Light collection optics include a collection optic positioned to receive the light from the scene that is reflected from the at least one scanning mirror and to focus the collected light onto a focal plane, and a non-imaging optical element including a solid piece of a material that is transparent at the given wavelength, having a front surface positioned at the focal plane of the collection lens and a rear surface through which the guided light is emitted from the material in proximity to a sensor, so that the collected light is guided through the material and spread over the detection area of the sensor.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 12, 2019
    Assignee: APPLE INC.
    Inventors: Noel Axelrod, Refael Della Pergola
  • Patent number: 10444113
    Abstract: A method of measuring crosstalk of a multicore fiber, the method including capturing an emitted light pattern at an end portion of a dummy fiber and obtaining a correlation data between a power of the light incident on the dummy fiber and the emitted light pattern, irradiating one core of the multicore fiber with a light through the dummy fiber, and measuring a power of a reference light emitted from the core, capturing a crosstalk light emitted from a different core different from the core on which the light is incident under a state where the reference light is masked, and estimating a power of the crosstalk light from a captured data of the crosstalk light and the correlation data, and calculating the crosstalk from the power of the reference light and the power of the crosstalk light.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 15, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Shota Saito, Katsuhiro Takenaga
  • Patent number: 10436991
    Abstract: A glass substrate as a platform for a high speed optical interconnect is disclosed. An optical engine is mounted on the top surface and a polymer waveguide on the bottom surface of the glass substrate. A metal plate can be included for mechanical support. The optical engine includes conductive lines patterned into the glass and active optical devices bonded with the conductive lines. An anisotropic conductive film (ACF) connects the optical engine with a printed circuit board. The waveguide, attached parallel to the bottom surface of the glass substrate, includes a core structure, a 45 degree tapered portion at one end of the core structure, used as a light reflector. An optical fiber connector is attached to the far end of the polymer waveguide. The optical path is formed from the active optical device on the top surface, through the glass substrate and the polymer waveguide, to the optical fiber connector on the bottom surface of the glass substrate.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: October 8, 2019
    Assignee: ADOLITE INC.
    Inventors: Abraham Jou, Paul Mao-Jen Wu
  • Patent number: 10422936
    Abstract: Alighting device includes an optical fiber having a first end portion from which a light emitted by a light source is introduced, and a second end portion, the optical fiber allowing the light to pass therethrough while radiating from a side surface of the optical fiber to an outside; a tube having light-transmissivity and covering the side surface of the optical fiber, such that a gap is located between the side surface of the optical fiber and the tube; a light-shielding cylindrical body covering the second end portion of the optical fiber, such that a space is located between the second end portion of the optical fiber and the cylindrical body, at least a portion of the light-shielding cylindrical body being disposed in the tube; and a light conductive part on a side surface of the cylindrical body, the light conductive part allowing light radiated from the second end portion of the optical fiber to be conducted to a portion of the tube at an outside of the cylindrical body in a diametrical direction of th
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 24, 2019
    Assignee: NICHIA CORPORATION
    Inventors: Katsuyuki Onozuka, Yoshitaka Tanaka
  • Patent number: 10422987
    Abstract: In an image acquisition device, imaging is performed using an imaging element capable of rolling reading an optical image of a sample irradiated with instantaneous light. Therefore, the image can be captured with a sufficient S/N ratio even when the optical image is weak. Further, the image acquisition device includes a light source control unit that causes the instantaneous light to be emitted from a light source from the start of exposure of a pixel row of which reading last starts to the start of reading of a pixel row of which the reading first starts. That is, in the image acquisition device, the light source control unit causes the sample to be irradiated with the instantaneous light from the light emitting means during a period of time in which all pixel rows of the imaging element are exposed.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: September 24, 2019
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventor: Fumio Iwase
  • Patent number: 10409066
    Abstract: A HMD device including a display device, a first waveguide element and a second waveguide element is provided. An image beam is projected to a projection target. The first waveguide element includes a plurality of first light splitting elements. The image beam coming from the display device is incident to the first waveguide element through a first light incident surface. The image beam is convergent to a first stop in the first waveguide element. The image beam leaves the first waveguide element through the first light exiting surface. The first stop is located in the first waveguide element. The second waveguide element includes a plurality of second light splitting elements. The image beam coming from the first waveguide element is incident to the second waveguide element through the second light incident surface.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: September 10, 2019
    Assignee: Coretronic Corporation
    Inventors: Chih-Wei Shih, Yi Hung, Chuan-Te Cheng, Chung-Ting Wei
  • Patent number: 10402993
    Abstract: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: September 3, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seunghoon Han, Ali Naqavi, Harry Atwater
  • Patent number: 10390708
    Abstract: Provided is an optical measuring device that can properly detect a small amount of dental plaque, can be easily incorporated into a toothbrush, and has a simple configuration. The optical measuring device includes a plurality of light sources that irradiate a sample with light having a plurality of wavelengths different from each other, respectively, a detection unit that detects intensities of examined light generated when the sample is irradiated with the light having the plurality of wavelengths, and a control unit that calculates an amount of fluorescent substance to be measured, based on the intensities of the examined light detected by the detection unit in response to the light having the plurality of wavelengths.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: August 27, 2019
    Assignee: CITIZEN WATCH CO., LTD.
    Inventor: Takaaki Nozaki
  • Patent number: 10372014
    Abstract: Techniques disclosed herein relate to photon sources with high spectral purity and high brightness. In one embodiment, a photon-pair source includes a pump waveguide, a first resonator coupled to the pump waveguide to couple pump photons from the pump waveguide into the first resonator, a second resonator coupled to the first resonator, and an output waveguide coupled to the second resonator. The second resonator is configured to convert the pump photons into photon pairs. The second resonator and the first resonator are configured to cause a coupling-induced resonance splitting in the second resonator or the first resonator. The second resonator and the output waveguide are configured to couple the photon pairs from the second resonator into the output waveguide. In some embodiments, the photo-pair source includes one or more tuners for tuning at least one of the first resonator or the second resonator.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 6, 2019
    Assignee: PSIQUANTUM, CORP.
    Inventors: Mihai Dorian Vidrighin, Damien Bonneau, Alessandro Farsi, Mark G. Thompson
  • Patent number: 10371905
    Abstract: An optical processing apparatus includes: a circuit hoard having first and second areas arranged in a direction of a first axis; a semiconductor device having an optical coupling element; an optical connector having an optical fiber and a holder with first and second holder parts, and the optical connector being supported by the second area and the semiconductor device disposed on the first area; and a supporting base having a thickness smaller than that of the semiconductor device. The supporting base is disposed between the second holder part and the second area. The optical fiber has a first optical fiber portion supported by the first holder part, and a second optical fiber portion held by the first and second holder parts. The first optical fiber portion has a tip end and a cladding face which is positioned with respect to the optical coupling element and is separated apart from the semiconductor device.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: August 6, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Mitsuharu Hirano, Akira Furuya
  • Patent number: 10310165
    Abstract: An image display apparatus includes an image display device configured to emit image light, a light guide member, a projection lens configured to project the image light toward the light guide member, and a light extracting unit provided on the light guide member, the light extracting unit being configured to extract the image light guided in the light guide member toward an exit pupil. The light extracting unit includes a first edge located at an end portion of the light extracting unit on the light incident section side and a second edge located at an end portion on the opposite side, and is capable of transmitting see-through light having been transmitted in the light guide member toward the exit pupil, and at least one of the first edge and the second edge is located outside a see-through visual field range in which the see-through light passes through.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: June 4, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Osamu Yokoyama