Patents Examined by Mary El-Shammaa
  • Patent number: 11448833
    Abstract: Systems and methods for angle polishing of the end faces of a plurality of optical connectors are provided. Systems are provided that include a connector defining a longitudinal axis, and at least two ferrules mounted with respect to the connector and arranged in a side-by-side orientation. The end faces of the connectors are movable relative to the connector and such movement facilitates lateral orientation of the angle polished end faces of the ferrules relative to the connector when in the mating position. Various mechanisms and methods for facilitating movement of the ferrules relative to the connector are disclosed to achieve the desired lateral polish orientation of the ferrule end faces.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: September 20, 2022
    Assignee: Ortronics, Inc.
    Inventors: Daniel M. Smith, Ryan J. Grandidge, Thomas Knychalski, Robert E. Abel
  • Patent number: 11442333
    Abstract: An image displacement device includes a first grating and a second grating. Each grating is switchable between a diffracting state and a non-diffracting state. The first grating has a first surface and a second surface opposite the first surface, the first surface receives image beams, and the image beams leave the first grating by the second surface. The second grating is disposed downstream from the first grating in a light path and has a third surface and a fourth surface opposite the third surface. The third surface receives the image beams, and the image beams leave the second grating by the fourth surface. An exit direction of the image beam exiting the second grating is shifted a distance in a first direction from an incident direction of the image beam incident to the first grating.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 13, 2022
    Assignee: YOUNG OPTICS INC.
    Inventors: Ming-Chih Chen, Ya-Ling Hsu
  • Patent number: 11442232
    Abstract: Aspects of the disclosure are drawn to methods for producing a fused connector termination. An exemplary method may include setting a specification requirement to be met by the fused connector termination and applying an amount of heat to a proximal region of an unfused connector termination. The proximal region of the unfused connector termination may include an inner optical fiber coaxially positioned within an outer ferrule, and applying the amount of heat may at least partially fuse the optical fiber to the outer ferrule to form an at least partially fused connector termination. The method may also include imaging the proximal region of the at least partially fused connector termination and determining, based on the imaging, whether the proximal region of the at least partially fused connector termination meets the specification.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 13, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Wen-Jui Ray Chia, Thomas Charles Hasenberg
  • Patent number: 11438076
    Abstract: Systems and methods for providing optical quantum communication networks based on rare-earth ion quantum bits (qubits) entrapped in solids are presented. According to one aspect a qubit is provided by an 171Yb3+ ion doped into a YVO crystal structure. A nanophotonic cavity fabricated in the doped crystal structure provides a zero-field energy level structure of the ion with optical transitions between ground and excited states at a wavelength longer than 980 nm. A subspace of the qubit is provided by two lower energy levels at the ground states separated by a microwave frequency of about 675 MHz. Addressing of the optical transitions is via first and second lasers and addressing of microwave transitions at the ground and excited states are via respective microwave sources. A single-shot readout sequence of the qubit based on two consecutive readout sequences on the optical transitions separated by a microwave pumping of the ground states is presented.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: September 6, 2022
    Inventors: Andrei Faraon, Jonathan M. Kindem, Andrei Ruskuc, John G. Bartholomew, Jake Rochman
  • Patent number: 11422394
    Abstract: A silicon modulator where the doping profile varies along the lateral and/or longitudinal position in the transition zones to achieve improved performance in terms of optical attenuation or contact access resistance or both. A modulator includes a core; a first transition zone that is a P-side region adjacent to the waveguide core, the first transition zone has a first longitudinal doping profile; and a second transition zone that is an N-side region adjacent to the core on an opposite side as the first transition region, the second transition zone has a second longitudinal doping profile; the first longitudinal doping profile has a variation of doping concentration along a longitudinal direction in the first transition region to mimic a first lateral doping profile, and the second longitudinal doping profile has a variation of doping concentration along a longitudinal direction in the second transition region to mimic a second lateral doping profile.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: August 23, 2022
    Assignee: Ciena Corporation
    Inventors: Alexandre Delisle-Simard, Yves Painchaud
  • Patent number: 11415762
    Abstract: A method of forming an optical bench includes forming a reflector layer over a sloping side of a substrate. The method includes depositing a redistribution layer over the substrate. The method includes disposing an under bump metallization (UBM) layer over the redistribution layer. The method includes forming a passivation layer over the redistribution layer and surrounding sidewalls of the UBM layer. The method includes mounting a first optical component over an uppermost portion of the substrate, wherein the reflector layer is configured to reflect an electromagnetic wave from the first optical component, and the first optical component is mounted outside the trench.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: August 16, 2022
    Inventors: Ying-Hao Kuo, Shang-Yun Hou, Wan-Yu Lee
  • Patent number: 11407672
    Abstract: A method for fabricating a beam shaper array assembly, where the beam shaper array assembly changes the shape of a plurality of beams. The method includes providing an optical endcap having a plurality of connector stems, welding a fiber to each of the stems to form an emitter array and positioning a beam shaper array adjacent to the endcap opposite to the stems. The method also includes measuring an angle error and a position error of each fiber, calculating a correction for each fiber for the angle error and the position error and correcting the angle and position of each fiber using the calculated corrections.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 9, 2022
    Inventors: Gregory D. Goodno, Joshua E. Rothenberg, James G. Ho, Dustin Guenther
  • Patent number: 11409103
    Abstract: A light-guide optical element (LOE) includes a transparent substrate having two parallel major external surfaces for guiding light within the substrate by total internal reflection (TIR). Mutually parallel internal surfaces within the LOE are provided with a structural polarizer which is transparent to light polarized parallel to a primary polarization transmission axis, and is partially or fully reflective to light polarized perpendicular to the primary polarization transmission axis. By suitable orientation of the polarization axis of successive internal surfaces together with the polarization mixing properties of TIR and/or use of birefringent materials, it is possible to achieve the desired proportion of coupling-out of the image illumination from each successive facet.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 9, 2022
    Assignee: Lumus Ltd.
    Inventors: Yochay Danziger, Daniel Michaels
  • Patent number: 11409036
    Abstract: A photonic chip includes a device layer and a port layer, with an optical port located at the port layer. Inter-layer optical couplers are provided for coupling light between the device and port layers. The inter-layer couplers may be configured to couple signal light but block pump light or other undesired wavelength from entering the device layer, operating as an input filter. The port layer may accommodate other light pre-processing functions, such as optical power splitting, that are undesirable in the device layer.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 9, 2022
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Ari Novack, Ruizhi Shi, Alexandre Horth, Ran Ding, Michael J. Hochberg
  • Patent number: 11404278
    Abstract: An optical grating component may include a substrate, and an optical grating, the optical grating being disposed on the substrate. The optical grating may include a plurality of angled structures, disposed at a non-zero angle of inclination with respect to a perpendicular to a plane of the substrate, wherein the plurality of angled structures are arranged to define a variable depth along a first direction, the first direction being parallel to the plane of the substrate.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 2, 2022
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: John Hautala, Morgan Evans, Rutger Meyer Timmerman Thijssen, Joseph C. Olson
  • Patent number: 11397343
    Abstract: Systems and methods for providing a microwave-to-optical (M2O) transducer using magneto-optical field interactions with spin states of an ensemble of ions doped into a crystal structure is presented. According to one aspect, the crystal structure is a (171Yb3+:YVO) doped crystal structure that provides a substrate for an on-chip implementation of the transducer. According to one aspect, coupling of microwave and optical signals to the ions is based on respective microwave and optical waveguides fabricated in or on the doped crystal structure. According to another aspect, coupling of microwave and optical signals to the ions is based on respective microwave and optical resonant cavities fabricated in or on the doped crystal structure. Transduction can be based on either a three-level system with near-zero applied external magnetic field or on a four-level system with zero applied external magnetic field. The transducer can operate reversibly as an optical-to-microwave (O2M) transducer.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: July 26, 2022
    Inventors: Andrei Faraon, Jake Rochman, Tian Xie, John G. Bartholomew
  • Patent number: 11389241
    Abstract: A laser system includes a first cavity to output a laser light along a first path, a first mirror to receive the laser light from the first cavity, and redirect the laser light along a second path that is different than the first path, a beam splitter removably located at a first position on the second path, a beam combiner removably located at a second position on the second path, and an alignment device having first and second alignment features. The first and second alignment features occupy the first position and the second position, respectively, on the second path, when the beam splitter and the beam combiner are removed from the first position and the second position.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: July 19, 2022
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Honggang Yu, Baocheng Yang
  • Patent number: 11385421
    Abstract: Various embodiments may relate to an optical device. The device may include an elongate substrate, an emitter portion at a distal end portion of the elongate substrate, the emitter portion configured to emit light, and an actuator portion at a proximal end portion of the elongate substrate opposite the distal end portion of the elongate substrate. The emitter portion may include a first electrode, a second electrode, and an active layer between the first electrode and the second electrode so that the light is emitted due to an increase in a temperature of the active layer upon application of a first potential difference between the first electrode and the second electrode. The active layer may be patterned to form a photonic crystal layer for enhancing directionality of the emitted light.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: July 12, 2022
    Assignee: Agency for Science, Technology and Research
    Inventors: Lennon Yao Ting Lee, Lionel You Liang Wong, Alex Yuandong Gu
  • Patent number: 11385390
    Abstract: An object is to provide an optical element in which a wavelength dependence of refraction of transmitted light is small, and a light guide element including the optical element.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: July 12, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Sato, Yukito Saitoh
  • Patent number: 11378809
    Abstract: A reflective beam conditioner includes a monolithic body having two or more mirrors and at least one alignment feature. The at least one alignment feature has a predetermined orientation or position with respect to at least one of the two or more mirrors. The two or more mirrors are configured such that, in use, a beam reflects once sequentially off of each of the mirrors. A method of manufacturing such a reflective beam conditioner includes providing a monolithic body. The method further includes restraining the monolithic body to a machining fixture. The method further includes forming a first mirror, a second mirror, and an alignment feature in the monolithic body with the monolithic body restrained in the machining fixture.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: July 5, 2022
    Assignee: Edmunc Optics, Inc.
    Inventors: Lars G. Sandström, Lucas J. Willis, Scott W. Sparrold, Nir Pony, Jared A. Talbot
  • Patent number: 11372242
    Abstract: A head-up display system for a motor vehicle includes a projection unit for providing a display image; a transparent holographic light guide display panel with a display surface in order to output a display image coupled into the display panel via a coupling-in region on a display surface, and a light guide which runs in a non-linear manner in order to guide a display image from the projection unit to the coupling-in region of the display panel.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: June 28, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andre Hartwig, Michael Arthur Janzer, Matthias Keller, Eric Reum, Mark Riebe, Florian Selig
  • Patent number: 11347063
    Abstract: An eyepiece waveguide for an augmented reality display system may include an optically transmissive substrate, an input coupling grating (ICG) region, a multi-directional pupil expander (MPE) region, and an exit pupil expander (EPE) region. The ICG region may receive an input beam of light and couple the input beam into the substrate as a guided beam. The MPE region may include a plurality of diffractive features which exhibit periodicity along at least a first axis of periodicity and a second axis of periodicity. The MPE region may be positioned to receive the guided beam from the ICG region and to diffract it in a plurality of directions to create a plurality of diffracted beams. The EPE region may overlap the MPE region and may out couple one or more of the diffracted beams from the optically transmissive substrate as output beams.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: May 31, 2022
    Assignee: Magic Leap, Inc.
    Inventors: Samarth Bhargava, Victor Kai Liu, Kevin Messer
  • Patent number: 11334107
    Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: May 17, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Jacques Johannes Carolan, Mihika Prabhu, Scott A. Skirlo, Yichen Shen, Marin Soljacic, Dirk Englund, Nicholas Christopher Harris
  • Patent number: 11320587
    Abstract: Aspects of the present disclosure describe planar lightwave circuit systems, methods and structures including a resonant mirror assembly having cascaded resonators that provide or otherwise facilitate the control of the transmissivity/reflectivity of a planar lightwave circuit (PLC)—or portion thereof—over a range of 0% to substantially 100%.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: May 3, 2022
    Assignee: LioniX International BV
    Inventors: Ruud Michiel Oldenbeuving, Chris Gerardus Hermanus Roeloffzen, Roelof Bernardus Timens, Jörn Philipp Epping, Ilka Dove, Dimitri Geskus
  • Patent number: 11314026
    Abstract: An edge-attachable (EA) optical connector includes an optical connector housing for an optical connector. The optical connector housing includes a slot that aligns with a module board edge finger electrical connector, such that the optical connector housing can be slid over a module board edge finger electrical connector and attached to the module board edge. An optical connector on one end of an optical fiber bundle or ribbon fits within the optical connector housing. When the optical connector housing is attached to the module board edge, the optical connector blind mates with a host optical connector supported by a bracket to which a host electrical connector is attached. An optical connector on another end of the optical fiber bundle or ribbon mates with a module board optical connector. The module board optical connector may include an optical socket mounted on an opto-electronic chip disposed on the module board.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: April 26, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Kevin B. Leigh, John Norton, Michael R. Krause