Thin Film Optical Waveguide Patents (Class 385/130)
  • Patent number: 10349155
    Abstract: Optical switches include a first hybrid coupler configured to accept an input and to provide two branches. A phase tuner on a first branch includes a phase shifter. A first heater is positioned on the first branch and a second heater is positioned on the second branch, each configured to compensate for phase error. A second hybrid coupler configured to recombine the two branches. A first photodetector and a second photodetector are positioned at outputs of the second hybrid coupler and are configured to measure crosstalk between the outputs of the second hybrid coupler. A controller is configured to activate the first heater or the second heater to reduce the measured crosstalk.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: July 9, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Nicolas Dupuis, Benjamin G. Lee, Alexander V. Rylyakov, Mehmet Soyuer
  • Patent number: 10295742
    Abstract: A guided light source that comprises: at least one quantum box associated with a discoid wave guide to achieve cylindrical propagation of a wave front emitted by the at least one quantum box in the discoid wave guide; an annular wave guide surrounding the discoid wave guide and having a grating coupler formed on its internal periphery to receive the wave front in normal incidence; an output wave guide optically coupled to the annular wave guide, in which the wave front is guided. The invention includes the method of fabrication of such a source, and its use for emission of a sequence of single photons.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 21, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Karim Hassan, Salim Boutami
  • Patent number: 10241265
    Abstract: An apparatus for alleviating a nonlinear temperature effect of an arrayed waveguide grating, comprising an integrated optical circuit base for an arrayed waveguide grating chip and an actuator. The integrated optical circuit base includes a first region, a second region connected by a hinge. The actuator includes two or more actuating rods having a thermal expansion coefficient different from that of the integrated optical circuit base. In different temperature ranges, the first region and the second region are driven by different actuating rods to rotate and/or translate relative to each other, so that the first region and the second region have a nonlinear displacement as the temperature changes, which brings the two parts of the arrayed waveguide grating chip to move relative to each other to accurately compensate drifting of a central wavelength of the arrayed waveguide grating chip in the different temperature ranges.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: March 26, 2019
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Jiayan Hu, Changan Li, Jiuhong Ling
  • Patent number: 10241274
    Abstract: An optical assembly includes a first grating device configured to: receive a light beam that includes an optical signal with a particular wavelength from a fiber; and change a propagation direction of the optical signal according to the particular wavelength of the optical signal. The optical assembly also includes a second grating device configured to: receive the optical signal outputted from the first grating device; change the propagation direction of the optical signal according to the particular wavelength of the optical signal; and direct the optical signal onto a grating coupler. The first grating device and the second grating device are configured to satisfy a plurality of configuration constraints.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 26, 2019
    Assignee: FINISAR CORPORATION
    Inventors: Xiaojie Xu, Thomas W. Mossberg, Tengda Du, Christoph M. Greiner, Dmitri Iazikov
  • Patent number: 10209450
    Abstract: Methods for coupling of waveguides with dissimilar mode field diameters, and related apparatuses, components, and systems are disclosed. In one example, a waveguide coupling assembly includes an input waveguide having a first mode, and a transition waveguide having a first transition waveguide section, a second transition waveguide section, and a tapered section. The first transition waveguide section has a second mode and is disposed proximate to the input waveguide such that a phase matching condition is achieved between the input waveguide and the first transition waveguide section, thereby evanescently coupling the input waveguide to the first transition waveguide section of the transition waveguide. The tapered section is optically connected between the first transition waveguide section and the second transition waveguide section, such that the second mode of the first transition waveguide section is converted to the third mode of the second transition waveguide section by the tapered section.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: February 19, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: Andrey Kobyakov, Sergey Anatol'evich Kuchinsky, Xue Liu, Aramais Robert Zakharian
  • Patent number: 10191213
    Abstract: Methods and structures for shielding optical waveguides are provided. A method includes forming a first optical waveguide core and forming a second optical waveguide core adjacent to the first optical waveguide core. The method also includes forming an insulator layer over the first optical waveguide core and the second optical waveguide core. The method further includes forming a shielding structure in the insulator layer between the first optical waveguide core and the second optical waveguide core.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: January 29, 2019
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: John J. Ellis-Monaghan, Jeffrey P. Gambino, Mark D. Jaffe, Kirk D. Peterson, Jed H. Rankin
  • Patent number: 10168475
    Abstract: Methods and systems are presented for heterogeneous integration of photonics and electronics with atomic layer deposition (ALD) bonding. One method includes operations for forming a compound semiconductor and for depositing (e.g., via atomic layer deposition) a continuous film of a protection material (e.g., Al2O3) on a first surface of the compound semiconductor. Further, the method includes an operation for forming a silicon on insulator (SOI) wafer, with the SOI wafer comprising one or more waveguides. The method further includes bonding the compound semiconductor at the first surface to the SOI wafer to form a bonded structure and processing the bonded structure. The protection material protects the compound semiconductor from acid etchants during further processing of the bonded structure.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: January 1, 2019
    Assignee: Juniper Networks, Inc.
    Inventors: John Parker, Gregory Alan Fish, Martin A. Spannagel, Antonio Labaro
  • Patent number: 10162110
    Abstract: A semiconductor device is provided with an insulating layer formed on a base substrate, an optical waveguide composed of a semiconductor layer formed on the insulating layer, and an insulating film formed along an upper surface of the insulating layer and a front surface of the optical waveguide. A peripheral edge portion of a lower surface of the optical waveguide is separated from the insulating layer, and the insulating film is buried between the peripheral edge portion and the insulating layer.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 25, 2018
    Assignees: RENESAS ELECTRONICS CORPORATION, PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION
    Inventors: Tatsuya Usami, Keiji Sakamoto, Yoshiaki Yamamoto, Shinichi Watanuki, Masaru Wakabayashi, Tohru Mogami, Tsuyoshi Horikawa, Keizo Kinoshita
  • Patent number: 10142711
    Abstract: Optical switches and methods of switching include a first hybrid coupler configured to accept an input and to provide two branches. A phase tuner on a first branch includes a Mach-Zehnder phase shifter configured to shift a signal on the first branch by a selected phase. A loss compensator on a second branch is configured to match a loss incurred on the first branch. A second hybrid coupler is configured to recombine the two branches such that the phase shift generated by the phase tuner determines which output of the second hybrid coupler is used.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: Nicolas Dupuis, Benjamin G. Lee, Alexander V. Rylyakov, Mehmet Soyuer
  • Patent number: 10122507
    Abstract: An optical transmitter has an optical modulator with a Mach-Zehnder interferometer, a pilot signal generator configured to generate a pilot signal to be superimposed on a drive signal for driving the optical modulator or on a substrate bias voltage applied to the optical modulator, and a controller configured to detect a ratio between a pilot component and a direct current component contained in a light output from the optical modulator and control at least one of an amplitude of the drive signal and a level of the substrate bias voltage such that the ratio becomes a constant value.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: November 6, 2018
    Assignee: FUJITSU OPTICAL COMPONENTS LIMITED
    Inventor: Hiroshi Nishimoto
  • Patent number: 10107960
    Abstract: A device that includes an optical coupler with a waveguide and waveguide index matched materials at an edge of a substrate, and a method of forming the device, is provided herein. The device comprises: a substrate having an edge, and an opening formed therein adjacent the edge; a layer of insulator on the substrate, which forms a bridge across the opening at the edge; a waveguide on the layer of insulator, the waveguide comprising a constant-width region and a tapered region terminating at the edge in a region of the opening; a first layer of optical epoxy in the opening, the optical epoxy indexed matched to the layer of insulator; and, a second layer of the optical epoxy on the tapered region, such that the optical epoxy optically contains an optical signal leaking from the waveguide in the tapered region.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: October 23, 2018
    Assignee: RANOVUS INC.
    Inventors: Ryan Murray Hickey, Christopher James Brooks, Dylan Logan, Andrew Peter Knights
  • Patent number: 10031289
    Abstract: An apparatus of polarization self-compensated delay line interferometer. The apparatus includes a first waveguide arm of a first material of a first length disposed between an input coupler and an output coupler and a second waveguide arm of the first material of a second length different from the first length disposed between the same input coupler and the same output coupler. The apparatus produces an interference spectrum with multiple periodic passband peaks where certain TE (transverse electric) and TM (transverse magnetic) polarization mode passband peaks are lined up. The apparatus further includes a section of waveguide of a birefringence material of a third length added to the second waveguide arm to induce a phase shift of the lined-up TE/TM passband peaks to a designated grid as corresponding polarization compensated channels of a wide optical band.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: July 24, 2018
    Assignee: INPHI CORPORATION
    Inventors: Masaki Kato, Radhakrishnan L. Nagarajan
  • Patent number: 10012535
    Abstract: A dispersive element is incorporated with an optical sensor as a spectrometer. The dispersive element includes a guided-mode resonance filter having a plurality of resonance regions. The resonance regions respectively have different filter characteristics, each reflecting a first light beam of a tested light source or transmitting a second light beam of the tested light source light source to the optical sensor, wherein the wavelength of the first light beam is different from that of the second light beam. In one embodiment, the dispersive element is incorporated with an optical sensor to form a miniature, high-resolution and low-cost spectrometer. The spectrometer makes use of the transmission efficiencies of the resonance regions of the guided-mode resonance filter and the light intensity distribution detected by the photosensitive regions of the optical sensor to acquire the spectral data of the tested light source.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 3, 2018
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Cheng-Sheng Huang, Hsin-An Lin
  • Patent number: 9983355
    Abstract: An optical coupler can be provided for coupling a light beam into a waveguide. The optical coupler can include a stepped structure, such as to reduce difficulties during manufacture, reduce expenses associated with manufacture, and additionally, to provide an increased acceptance angle of the optical coupler. The waveguide can include a guiding region where a cladding thickness can be increased relative to a coupling region, such as to reduce losses due to evanescent outcoupling in the guiding region.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: May 29, 2018
    Assignee: Analog Devices, Inc.
    Inventors: Scott Robert Davis, Shrenik Deliwala, Michael Ziemkiewicz, Derek Gann, Andrew William Sparks, Michael Howard Anderson
  • Patent number: 9891103
    Abstract: A spectrometer comprising a waveguide module, a diffractive component, and a light sensor is provided. The waveguide module has a first reflective surface, a second reflective surface opposite to the first reflective surface, and a light channel between the first reflective surface and the second reflective surface. The diffractive component has a diffractive surface and a plurality of strip-shaped diffractive structures located on the diffractive surface. The sharpness of the profile of the strip-shaped diffractive structures on a first side of the diffractive surface is greater than that on a second side of the diffractive surface. When viewed along a direction perpendicular to the second reflective surface, the first side of the diffractive surface is positioned between the first reflective surface and the second reflective surface with a distance away from the second reflective surface. A method for assembling the spectrometer and an assembling system are also provided.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: February 13, 2018
    Assignee: OTO PHOTONICS INC.
    Inventors: Meng-Hua Wang, Shih-Hung Chien, Jyh-Jau Chen, Jan Liang Yeh
  • Patent number: 9880353
    Abstract: The wavelength response of an arrayed waveguide grating can be tuned, in accordance with various embodiments, using a beam sweeper including one or more heaters to shift a lateral position of light focused by the beam sweeper at an interface of the beam sweeper with an input free propagation region of the arrayed waveguide grating.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: January 30, 2018
    Assignee: Aurrion, Inc.
    Inventors: Jared Bauters, Brian R. Koch, Jonathan Edgar Roth, Gregory Alan Fish
  • Patent number: 9869817
    Abstract: An optical interferometer based on multi-mode interference (MMI) devices includes an input port, an output port, a first MMI device connected to the input port at an input face of the first MMI device, a second MMI device connected to the first output port at an output face of the second MMI device. In the optical interferometer, an output face of the first MMI device and an input face of the second MMI device are directly connected, the first MMI device includes a first and a second self-imaging points at an interface between the first MMI device and the second MMI device, and a propagation axis of the second MMI device is tilted with respect to a propagation axis of the first MMI device, causing a path length difference between an upper optical path via the first self-imaging point and a lower optical path via the second self-imaging point.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: January 16, 2018
    Assignee: Ciena Corporation
    Inventors: Yves Painchaud, Alexandre D. Simard
  • Patent number: 9810846
    Abstract: Disclosed are optical devices for coupling radiation between an optical waveguide and an external medium. In one embodiment, an optical device is disclosed comprising a semiconductor die comprising an integrated optical waveguide core and an overlying optical waveguide comprising a waveguide taper and a waveguide facet. The overlying optical waveguide at least partially overlies the integrated optical waveguide core, and the waveguide facet is between about 1 ?m and 200 ?m from an edge of the semiconductor die. In another embodiment, a method is disclosed comprising providing a substrate comprising an integrated semiconductor waveguide and forming on the substrate an overlying waveguide comprising a waveguide taper and a waveguide facet. The overlying waveguide at least partially overlies the integrated semiconductor waveguide. The method further includes cutting the substrate about 1 ?m and 200 ?m from the waveguide facet.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: November 7, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dirk Taillaert, Diederik Vermeulen, Jonathan Schrauwen, Gunther Roelkens
  • Patent number: 9797825
    Abstract: Disclosed are optical computing devices that employ birefringent optical elements configured for use in optical computing devices. One optical computing device includes a polarizer configured to generate at least x polarized light and y polarized light, a birefringent integrated computational element configured to optically interact with a substance and the polarizer, thereby generating optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the substance.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 24, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neal Gregory Skinner, David L. Perkins
  • Patent number: 9766399
    Abstract: A cross waveguide includes a first waveguide and a second waveguide, where the first waveguide and the second waveguide are mutually perpendicular and crosswise disposed, an area formed by a cross part of the first waveguide and the second waveguide is a cross area, the first waveguide and the second waveguide each include a shallow etching part and a core layer, and the shallow etching part is symmetrically distributed on two sides of the core layer in a length direction relative to an axis of the core layer. By appropriately adjusting a width of the core layer or a width of the shallow etching part, an energy loss generated during optical wave transmission in the cross waveguide can be effectively reduced.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 19, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wanyuan Liu, Xin Tu, Hongyan Fu
  • Patent number: 9715115
    Abstract: An example demultiplexer may include at least one dispersive element that is common to multiple wavelength channels. The demultiplexer may additionally include multiple field lenses positioned optically downstream from the at least one dispersive element, where a number of the field lenses is equal to a number of the wavelength channels. An example multiplexer may include a single piece power monitor assembly that includes a collimator lens array, a focusing lens array, and a slot integrally formed therein. The collimator lens array may be positioned to receive multiple wavelength channels from a laser array. The focusing lens array may be positioned to focus multiple portions of the wavelength channels onto an array of photodetectors. The slot may be configured to tap the portions from the wavelength channels collimated into the single piece power monitor assembly by the collimator lens array and to direct the portions toward the focusing lens array.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: July 25, 2017
    Assignee: FINISAR CORPORATION
    Inventors: Sascha Hallstein, Cindy Hsieh, Brendan Hamel-Bissell
  • Patent number: 9709734
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for an optical coupler. In some embodiments, the device may include an optical waveguide to transmit light input from a light source. The optical waveguide may include a semiconductor layer, having a trench with one facet that comprises an edge formed under an approximately 45 degree angle and another facet formed substantially normal to the semiconductor layer. The edge may interface with another medium to form a mirror to receive inputted light and reflect received light substantially perpendicularly to propagate the received light. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: July 18, 2017
    Assignee: Intel Corporation
    Inventors: Mahesh Krishnamurthi, Judson Ryckman, Haisheng Rong, Ling Liao, Harel Frish, Oshrit Harel, Assia Barkai, Yun-Chung Na, Han-Din Liu
  • Patent number: 9680099
    Abstract: A method for forming an organic semiconductor film includes: forming a solution film by applying a solution containing an organic semiconductor material and a solvent to at least a part of a substrate; and drying the solution film by irradiating at least a part of the solution film with electromagnetic waves with a wavelength of at least 8 ?m and an energy density of from 0.1 to 10 J/cm2 on the surface of the solution film before the solution film dries. An organic semiconductor film having good crystallinity can be formed by the method.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 13, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yoshiki Maehara, Yoshihisa Usami
  • Patent number: 9671578
    Abstract: A structured substrate for optical fiber alignment is produced at least in part by forming a substrate with a plurality of buried conductive features and a plurality of top level conductive features. At least one of the plurality of top level conductive features defines a bond pad. A groove is then patterned in the substrate utilizing a portion of the plurality of top level conductive features as an etch mask and one of the plurality of buried conductive features as an etch stop. At least a portion of an optical fiber is placed into the groove.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 6, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Russell A. Budd, Paul F. Fortier
  • Patent number: 9658413
    Abstract: An optical connector includes a main body, a ribbon fiber and a ribbon fiber holder. The main body includes a bottom surface, and a mounting surface facing away from the bottom surface. The bottom surface arranged with a plurality of first lenses, the mounting surface is arranged with a number of second lenses corresponding with each second lens. The ribbon fiber includes a number of optical fibers arranged in an array, each optical fibers is corresponded with one of second lenses. Each optical fiber includes an incident surface, an angle between the incident surface and a horizontal surface is about 45 degrees. The ribbon fiber holder is matched with the main body and configured for clamping the ribbon fiber to make each second optical lens being located under the optical fiber and aligned with the incident surface of each optical fiber.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: May 23, 2017
    Assignee: ScienBiziP Consulting (Shenzhen) Co., Ltd.
    Inventor: Hsin-Shun Huang
  • Patent number: 9658415
    Abstract: A structured substrate for optical fiber alignment is produced at least in part by forming a substrate with a plurality of buried conductive features and a plurality of top level conductive features. At least one of the plurality of top level conductive features defines a bond pad. A groove is then patterned in the substrate utilizing a portion of the plurality of top level conductive features as an etch mask and one of the plurality of buried conductive features as an etch stop. At least a portion of an optical fiber is placed into the groove.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 23, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Russell A. Budd, Paul F. Fortier
  • Patent number: 9613886
    Abstract: An optical coupling module includes a silicon photonic substrate, and an optical waveguide module. The silicon photonic substrate has a first surface and a first grating on the first surface for diffracting the light which passes through the grating. The optical waveguide module is disposed on the silicon photonic substrate, wherein the optical waveguide module includes an optical waveguide having an end disposed in corresponding to the first grating of the silicon photonic substrate. Otherwise, the optical waveguide module has a reflective surface coupled to the end of the optical waveguide and adapted to reflect the light emerging from or incident into the grating to form an optical path between the silicon photonic substrate and the optical waveguide for transmitting the light.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: April 4, 2017
    Assignee: Industrial Technology Research Institute
    Inventors: Jui-Ying Lin, Chia-Hsin Chao, Shu-Mei Yang, Chun-Hsing Lee, Chien-Chun Lu
  • Patent number: 9588361
    Abstract: The present disclosure provides an optical isolator which includes a planar lightwave circuit, a magneto-optic thin film and a metal thin film with a magnetic field. A channel for transmitting an optical signal is configured in the planar lightwave circuit. The magneto-optic thin film is disposed on the planar lightwave circuit, and a plane on which the magneto-optic thin film is located is parallel to the channel. The metal thin film is disposed on the magneto-optic thin film.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 7, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jian Chen, Zhiguang Xu
  • Patent number: 9581774
    Abstract: An optical component including a multi-layer substrate, an optical waveguide element, and two optical-electro assemblies is provided. The multi-layer substrate includes a dielectric layer, two circuit layers, and two through holes passing through the dielectric layer. The optical waveguide element is located on the multi-layer substrate and between the through holes. The optical-electro assemblies are respectively inserted into the corresponding through holes and correspondingly located at two opposite ends of the optical waveguide element. One of the optical-electro assemblies transforms an electrical signal into a light beam and provides the light beam to the optical waveguide element, and the other one of the optical-electro assemblies receives the light beam transmitted from the optical waveguide element and transforms the light beam into another electrical signal. A manufacturing method of the optical component and an optical-electro circuit board having the optical component are also provided.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 28, 2017
    Assignee: Unimicron Technology Corp.
    Inventors: Yin-Ju Chen, Cheng-Po Yu, Pei-Chang Huang
  • Patent number: 9507105
    Abstract: An optical device for implementing passive alignment of parts and a method therefor, more particularly an optical device and a method therefor that utilize an alignment reference part arranged on the substrate to passively align an optical element part with a lens-optical fiber connection part. For the passive alignment of parts, connection pillars of an alignment reference part are coupled to substrate holes, one or more light-emitting elements and one or more light-receiving elements are aligned in a row in a particular interval with respect to alignment holes arranged opposite each other in the alignment reference part, a lens-optical fiber connection part is aligned with respect to the alignment holes, and an optical fiber is aligned with the optical alignment point at a surface of a prism forming a portion of the lens-optical fiber connection part.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: November 29, 2016
    Assignee: UNIVE CO., LTD.
    Inventors: Yung Sung Son, Sang-Shin Lee, Hak-Soon Lee, Jun-Young Park
  • Patent number: 9448422
    Abstract: System and method embodiments are provided for a thermo-optic switch with thermally isolated and heat restricting pillars. The embodiments enable increased integration density in photonic integrated chips (PICs), reduced power consumption, improved switching speed, and increased chip lifetime. In an embodiment, an optical waveguide; a resistive heater in thermal contact with a surface of the optical waveguide; and a plurality of heat flow restricting pillars connected to the sides of the optical waveguide and supporting the optical waveguide such that the optical waveguide is substantially thermally isolated from a substrate below the optical waveguide by a gap formed between the optical waveguide and the substrate, and wherein the pillars restrict heat flow from the optical waveguide to a supporting structure that supports the pillars.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: September 20, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Dritan Celo
  • Patent number: 9435961
    Abstract: Embodiments are provided for an optical coupler created by bonded photonic chip coupler for Silicon-on-Insulator (SOI) chip-fiber coupling. System and apparatus embodiments for a bonded photonic chip coupler for SOI chip-fiber coupling provide for reduced mismatch between fiber and chip, increased coupling efficiency, and lower photonics device insertion loss.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: September 6, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Jia Jiang
  • Patent number: 9423567
    Abstract: Provided are an optical module, an optical communication apparatus, and an information processing system including the same. The optical module includes a lower clad layer, an optical waveguide extended in one direction on the lower clad layer, an optical device on the optical waveguide, a prism disposed between the optical device and the optical waveguide and having a higher refractive index than the optical waveguide, a housing covering the prism and the optical device, and an electrode layer adjacent to the prism and disposed between the housing and the optical waveguide.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: August 23, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventor: Sahnggi Park
  • Patent number: 9417467
    Abstract: System and method embodiments are provided for a thermo-optic switch with thermally isolated and heat restricting pillars. The embodiments enable increased integration density in photonic integrated chips (PICs), reduced power consumption, improved switching speed, and increased chip lifetime. In an embodiment, an optical waveguide; a resistive heater in thermal contact with a surface of the optical waveguide; and a plurality of heat flow restricting pillars connected to the sides of the optical waveguide and supporting the optical waveguide such that the optical waveguide is substantially thermally isolated from a substrate below the optical waveguide by a gap formed between the optical waveguide and the substrate, and wherein the pillars restrict heat flow from the optical waveguide to a supporting structure that supports the pillars.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 16, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Dritan Celo
  • Patent number: 9405127
    Abstract: A planar core and a cladding disposed on opposite sides of thereof. In the best mode, the rotator includes a very low Numerical Aperture (NA) planar waveguide. The cladding is birefringent and the refractive index and birefringence thereof are optimized to provide equal mode propagation velocities for both TE and TM modes for at least one transverse mode. The refractive index and birefringence of the cladding are optimized to provide equal mode propagation velocities for both TE and TM modes for a wide range of transverse modes.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: August 2, 2016
    Assignee: RAYTHEON COMPANY
    Inventor: David M. Filgas
  • Patent number: 9400354
    Abstract: An embodiment waveguide polarization rotator includes an optical waveguide and an overlay strip. The optical waveguide has an input end and an output end oppositely disposed thereon. The optical waveguide is operable to receive, at the input end, an input optical signal having a mode having an input polarization. The optical waveguide is further operable to generate, at the output end, an output optical signal having an output polarization orthogonal to the input polarization. The overlay strip is disposed over and non-orthogonally crosses the optical waveguide. The overlay strip has a first end laterally offset from the optical waveguide by a first offset distance and a second end laterally offset from the optical waveguide by a second offset distance.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: July 26, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Patrick Dumais
  • Patent number: 9391428
    Abstract: Provided is a waveguide element, including: a waveguide for guiding an electromagnetic wave; a resonance antenna for radiating or receiving the electromagnetic wave, the resonance antenna being arranged at a part of the waveguide for radiating or receiving the electromagnetic wave; and an impedance matching portion for matching an impedance of the waveguide with an impedance of the resonance antenna so as to couple the waveguide to the resonance antenna. The waveguide includes: a first conductor layer and a second conductor layer each having a negative dielectric constant real part for the electromagnetic wave; and a core layer arranged between the first conductor layer and the second conductor layer. The core layer has one of a gain of the electromagnetic wave and nonlinearity of carriers for the electromagnetic wave.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: July 12, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasushi Koyama, Yoshinori Tateishi
  • Patent number: 9377596
    Abstract: An optical component including a multi-layer substrate, an optical waveguide element, and two optical-electro assemblies is provided. The multi-layer substrate includes a dielectric layer, two circuit layers, and two through holes passing through the dielectric layer. The optical waveguide element is located on the multi-layer substrate and between the through holes. The optical-electro assemblies are respectively inserted into the corresponding through holes and correspondingly located at two opposite ends of the optical waveguide element. One of the optical-electro assemblies transforms an electrical signal into a light beam and provides the light beam to the optical waveguide element, and the other one of the optical-electro assemblies receives the light beam transmitted from the optical waveguide element and transforms the light beam into another electrical signal. A manufacturing method of the optical component and an optical-electro circuit board having the optical component are also provided.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: June 28, 2016
    Assignee: Unimicron Technology Corp.
    Inventors: Yin-Ju Chen, Cheng-Po Yu, Pei-Chang Huang
  • Patent number: 9371616
    Abstract: The laminate has a resin substrate and a composite layer thereon. The composite layer contains an inorganic compound and a cellulose fiber exhibiting an average fiber diameter of not less than 2 nm and not more than 200 nm. The laminate has a flexible substrate which exhibits superior gas-barrier capability as well as enhanced mechanical strength and heat-resistance and is suitably applicable to a variety of display substrates.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: June 21, 2016
    Assignee: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Kazuhito Ihara, Yasumitsu Fujino
  • Patent number: 9331810
    Abstract: An approach for providing dedicated service in a passive optical network (PON) is described. A dedicated service generates a multi-wavelength optical signal comprising a plurality of sub-signals corresponding to carrier wavelengths, modulate the plurality of sub-signals simultaneously with a content signal and transmit the plurality of sub-signals to one or more respective subscribers over an optical distribution network.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: May 3, 2016
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: David Z. Chen
  • Patent number: 9274276
    Abstract: An all-dielectric metamaterial cladding is provided that can strongly confine light inside conventional low-index dielectric waveguides for use with photonic integrated circuits and nano-photonic devices. A class of metamaterials with dual electric and magnetic anisotropy along with giant birefringence can provide the ideal quasi-transverse electromagnetic mode propagation inside a glass core. A Transformed Cladding Waveguide can show an order of magnitude decreased cross-talk as compared to conventional waveguides.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: March 1, 2016
    Assignee: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Saman Jahani, Zubin Jacob
  • Patent number: 9274279
    Abstract: Embodiments of the invention describe heterogeneous photonic integrated circuits (PIC) wherein a first silicon region is separated from the heterogeneous semiconductor material by a first distance, and a second silicon region is separated from the heterogeneous semiconductor material by a second distance greater than the first distance. Thus embodiments of the invention may be described as, in heterogeneous regions of a heterogeneous PIC, silicon waveguides using multiple heights of the silicon waveguide, or other structures with multiple offset heights between silicon and heterogeneous materials (as described herein).
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 1, 2016
    Assignee: Aurrion, Inc.
    Inventors: Jonathan Edgar Roth, Jae Shin, Gregory Alan Fish
  • Patent number: 9250389
    Abstract: A signal transfer link includes a first plasmonic coupler, and a second plasmonic coupler spaced apart from the first plasmonic coupler to form a gap. An insulator layer is formed over end portions of the first and second plasmonic couplers and in and over the gap. A plasmonic conductive layer is formed over the gap on the insulator layer to excite plasmons to provide signal transmission between the first and second plasmonic couplers.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: February 2, 2016
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Phaedon Avouris, Vasili Perebeinos, Mathias B. Steiner, Alberto Valdes Garcia
  • Patent number: 9246309
    Abstract: A quantum cascade laser includes a semiconductor substrate, and an active layer that is provided on the substrate, and has a cascade structure in which emission layers and injection layers are alternately laminated by multistage-laminating unit laminate structures each consisting of the quantum well emission layer and the injection layer, the active layer generates light by intersubband transition in a quantum well structure. Further, in a laser cavity structure for light with a predetermined wavelength to be generated in the active layer, reflection control films including at least one layer of CeO2 film are formed on a first end face and a second end face facing each other. Thereby, it is possible to realize a quantum cascade laser capable of preferably realizing reflectance control for light within a mid-infrared wavelength region on the laser device end face.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 26, 2016
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Atsushi Sugiyama, Naota Akikusa, Tadataka Edamura
  • Patent number: 9240674
    Abstract: A quantum cascade laser includes a semiconductor substrate, and an active layer that is provided on the substrate, and has a cascade structure in which emission layers and injection layers are alternately laminated by multistage-laminating unit laminate structures each consisting of the quantum well emission layer and the injection layer, and generates light by intersubband transition in a quantum well structure. Further, in a laser cavity structure for light with a predetermined wavelength to be generated in the active layer, CeO2 insulating films and reflection control films are formed in order on respective faces of a first end face and a second end face facing each other. Thereby, it is possible to realize a quantum cascade laser capable of preferably realizing reflectance control for light within a mid-infrared region on the laser device end face.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: January 19, 2016
    Assignee: HAMAMATSU PHOTONICS K. K.
    Inventors: Tadataka Edamura, Atsushi Sugiyama, Naota Akikusa
  • Patent number: 9206285
    Abstract: The present invention relates to conjugated polymers and a method for their synthesis. Furthermore, the present invention relates to electro-synthesis methods for producing polymers that include the use of at least one Lewis acid and at least one proton trap to form organic conjugated polymers having elevated refractive indices. In one embodiment, the present invention relates to an organic polymer having an elevated refractive index, the organic polymer formed by a process comprising the steps of: providing a solution of unsaturated organic monomer units and at least one acidic component; impeding saturation of the unsaturated organic-monomer units by at least one protic element in the solution; and polymerizing the unsaturated organic monomer units to form a conjugated organic polymer having a refractive index of at least about 2.3 for electromagnetic energy having a wavelength of about 700 nm.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: December 8, 2015
    Assignee: The University of Akron
    Inventors: Stephen Z. Cheng, Matthew J. Graham, Frank W. Harris, Shi Jin
  • Patent number: 9201196
    Abstract: A high-order mode filter includes a slab region, a band-shaped projection elongated in an optical waveguide direction, a first optical waveguide including a disturbance element and a second optical waveguide. The disturbance element is formed by doping impurities into the slab region, thus indicating a lower refractive index than the slab region. Both the first optical waveguide and the second optical waveguide are alternately arranged. The first optical waveguide may include a disturbance element positioned close to the projection, while the second optical waveguide may include a disturbance element distanced from the projection in the slab region. The high-order mode filter causes a large high-order mode loss due to interference between a removable high-order mode and an intentional high-order mode at the connecting face between the first optical waveguide and the second optical waveguide, thus reducing reflected light and stray light.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: December 1, 2015
    Assignee: NEC CORPORATION
    Inventor: Shigeki Takahashi
  • Patent number: 9170359
    Abstract: A wave guide that can be deformed into a required shape and fixed in that shape by polymerization of the material. The wave guide substrate comprises a flexible monomer or oligomer material that is polymerized to form a rigid polymer and fix the shape of the wave guide. Light sources, such as LED's, and/or photo voltaic cells may be embedded within the substrate of the wave guide so that the wave guide is a luminaire or solar concentrator, respectively.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: October 27, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Ties Van Bommel, Rifat Ata Mustafa Hikmet, Roy Gerardus Franciscus Antonius Verbeek
  • Patent number: 9147855
    Abstract: The embodiments of the present invention relate to a light emitting diode and manufacturing method thereof. The electroluminescent layer of the light-emitting diode is formed of graphene/compound semiconductor quantum dot composites.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: September 29, 2015
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Feng Zhang, Tianming Dai, Qi Yao
  • Patent number: 9121999
    Abstract: An optical film and a display device having the same are provided. The optical film has a light input face, a light output face opposite to the light input face, and a light-output structure disposed on the light output face. The light-output structure includes a plurality of light output microstructures such as prisms disposed side by side along a first direction on the light output face. Each prism has a first quadrilateral cross section parallel to the first direction. A first side of the quadrilateral cross section is connected to the light output face and includes a first angle with the light output face, wherein the first angles of the prisms continuously arranged have angle values varying in a periodic manner.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 1, 2015
    Assignees: AU OPTRONICS CORPORATION, UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC.
    Inventors: Jin Yan, Da-Ming Xu, Hui-Chuan Cheng, Shin-Tson Wu, Yi-Fen Lan, Cheng-Yeh Tsai