Channel Waveguide Patents (Class 385/132)
  • Patent number: 10261318
    Abstract: Architectures are provided for selectively outputting light for forming images, the light having different wavelengths and being outputted with low levels of crosstalk. In some embodiments, light is incoupled into a waveguide and deflected to propagate in different directions, depending on wavelength. The incoupled light then outcoupled by outcoupling optical elements that outcouple light based on the direction of propagation of the light. In some other embodiments, color filters are between a waveguide and outcoupling elements. The color filters limit the wavelengths of light that interact with and are outcoupled by the outcoupling elements. In yet other embodiments, a different waveguide is provided for each range of wavelengths to be outputted. Incoupling optical elements selectively incouple light of the appropriate range of wavelengths into a corresponding waveguide, from which the light is outcoupled.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 16, 2019
    Assignee: Magic Leap, Inc.
    Inventors: Robert Dale TeKolste, Michael Anthony Klug, Brian T. Schowengerdt
  • Patent number: 10247882
    Abstract: Provided is an optical waveguide circuit avoiding the difficulty of the property compensation based on temperature control, compensated with respect to the property variations due to fabrication error, particularly paid attention in a silicon waveguide, and being low in power consumption and high in performances. The optical waveguide circuit includes a silicon (Si) substrate, a buried oxide film (BOX) layer formed on the Si substrate, and an SOI (Silicon on Insulator) layer, formed on the BOX layer, including an optical element utilizing the SOI layer as a main optical transmission medium. At least part of a waveguide of the optical element includes uniformly distributed and thermally unstable crystal defects.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 2, 2019
    Assignees: NEC CORPORATION, PHOTONICS ELECTRONICS TECHNOLOGY RESEARCH ASSOCIATION
    Inventors: Tsuyoshi Horikawa, Tohru Mogami, Keizo Kinoshita
  • Patent number: 10215689
    Abstract: A derivative spectroscopy system for achieving a tunable resolution of 2 nm or less in resolving spectral components of an input optical signal is provided so as to estimate derivative spectra of the input optical signal based on the resolved spectral components. In the system, a first dispersive-element structure spectrally decomposes the input optical signal into subband signals. A second dispersive-element structure receives part or all of the subband signals and spectrally decomposes the received subband signals to plural spectral components. A material having a temperature-variant refractive index is used to build the second dispersive-element structure, enabling a shift of center wavelength of each spectral component as small as 2 nm of less upon changing a temperature of the second dispersive-element structure.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: February 26, 2019
    Assignee: Hong Kong Applied Science and Technoloy Research Institute Company Limited
    Inventors: Jiaqi Wang, Chun Zhang, Wei Mong Tsang
  • Patent number: 10197818
    Abstract: Provided is a thermo-optic optical switch including an input waveguide configured to receive an optical signal, an output waveguide configured to output the optical signal, branch waveguides branching from the input waveguide to be connected to the output waveguide, and heater electrodes disposed on the branch waveguides and configured to heat the branch waveguides, wherein the branch waveguides includes first and second phase shifters having first and second thermo-optic coefficients of opposite signs.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 5, 2019
    Assignee: ELECTRONICS & TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Myungjoon Kwack, Jaegyu Park, Jiho Joo, Gyungock Kim
  • Patent number: 10187626
    Abstract: Various embodiments include an apparatus including a phase mask and circuitry. The phase mask is configured and arranged with optics in an optical path to modify a shape of light, passed from an object. The shape modification characterizes the light as having two lobes with a lateral distance that changes along a line, having a first orientation, as a function of an axial proximity of the object to a focal plane, and with the line having a different orientation depending on whether the object is above or below the focal plane. The circuitry is configured and arranged to generate a three-dimensional image from light detected at the image plane, by using the modified shape to provide depth-based characteristics of the object.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: January 22, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Yoav Shechtman, William E. Moerner, Lucien Weiss, Steffen J. Sahl
  • Patent number: 10156725
    Abstract: Architectures are provided for selectively outputting light for forming images, the light having different wavelengths and being outputted with low levels of crosstalk. In some embodiments, light is incoupled into a waveguide and deflected to propagate in different directions, depending on wavelength. The incoupled light then outcoupled by outcoupling optical elements that outcouple light based on the direction of propagation of the light. In some other embodiments, color filters are between a waveguide and outcoupling elements. The color filters limit the wavelengths of light that interact with and are outcoupled by the outcoupling elements. In yet other embodiments, a different waveguide is provided for each range of wavelengths to be outputted. Incoupling optical elements selectively incouple light of the appropriate range of wavelengths into a corresponding waveguide, from which the light is outcoupled.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: December 18, 2018
    Assignee: MAGIC LEAP, INC.
    Inventors: Robert Dale TeKolste, Michael Anthony Klug, Brian T. Schowengerdt
  • Patent number: 10141232
    Abstract: A semiconductor structure includes a first nanowire of a first material formed on a substrate, at least a second nanowire of a second material different than the first material formed on the substrate and a common gate stack surrounding the first nanowire and the second nanowire. The first nanowire and the second nanowire are vertical with respect to a horizontal plane of the substrate. The first material may be indium gallium arsenide (InGaAs) and the first nanowire may form part of an NFET channel of a CMOS device, while the second material may be germanium (Ge) and the second nanowire may form part of a PFET channel of the CMOS device.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 27, 2018
    Assignee: International Business Machines Corporation
    Inventors: ChoongHyun Lee, Injo Ok, Soon-Cheon Seo
  • Patent number: 10114178
    Abstract: A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 30, 2018
    Assignees: CommScope Connectivity Belgium BVBA, CommScope Technologies LLC
    Inventors: Danny Willy August Verheyden, David Donald Erdman, Michael Gurreri, Randall Bobby Paul, Jan Watté, Robert Charles Flaig, Alan Edward Plotts, Michael Aaron Kadar-Kallen, Shelly Ann Buchter, Jan Vandenbroeck, Patrick Billet, Stefano Beri, André Johannes Maria Hilderink, Hernes Jacobs, Petrus Theodorus Rutgers, Petrus Theodorus Krechting, Martijn Johannes Wolbers, Walter Mattheus, Cristian-Radu Radulescu, Paul Vits, Karel Johannes Van Assenbergh, Pieter Cornelis Johan De Jager, Henk Jan Theodoor Van Der Pol
  • Patent number: 10069274
    Abstract: One example includes an optical device system. The system includes a waveguide that includes a fixed waveguide portion to propagate an optical signal, a semiconductor membrane layer, and a tunable air gap that separates the fixed waveguide portion and the semiconductor membrane layer. The system also includes an optical tuning system to move the semiconductor membrane layer with respect to the fixed waveguide portion in response to a control signal to control a separation distance of the tunable air gap to tune a characteristic of the optical signal.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: September 4, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Di Liang, Geza Kurczveil
  • Patent number: 10012792
    Abstract: An integrated electronic device includes a substrate having an opening extending therethrough. The substrate includes an interconnection network, and connections coupled to the interconnection network. The connections are to be fixed on a printed circuit board. An integrated photonic module is electrically connected to the substrate, with a portion of the integrated photonic module in front of or overlapping the opening of the substrate. An integrated electronic module is electrically connected to the photonic module, and extends at least partly into the opening of the substrate. The electronic module and the substrate may be electrically connected onto the same face of the photonic module.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: July 3, 2018
    Assignee: STMICROELECTRONICS (CROLLES 2) SAS
    Inventors: Jean-Francois Carpentier, Patrick Lemaitre, Mickael Fourel
  • Patent number: 9946020
    Abstract: A mode-matched waveguide Y-junction with balanced or unbalanced splitting comprises an input waveguide, expanding from an input end to an output end, for expanding the input beam of light along a longitudinal axis; first and second output waveguides extending from the output end of the input waveguide separated by a gap. Ideally, each of the first and second output waveguides includes an initial section capable of supporting a fundamental super mode, and having an inner wall substantially parallel to the longitudinal axis, and a mode splitting section extending from the initial section at an acute angle to the longitudinal axis.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 17, 2018
    Assignee: Elenion Technologies, LLC
    Inventor: Alexandre Horth
  • Patent number: 9823499
    Abstract: A metal-oxide-semiconductor (MOS) type semiconductor device, comprising a silicon substrate, a first cathode electrode and a second cathode electrode coupled to the silicon substrate and located on distal ends of the silicon substrate, a poly-silicon (Poly-Si) gate proximally located above the silicon substrate and between the first cathode electrode and the second cathode electrode, wherein the Poly-Si gate comprises a first post extending orthogonally relative to the silicon substrate comprising a first doped silicon slab, a second post extending orthogonally relative to the silicon substrate comprising a second doped silicon slab, wherein the second post is positioned so as to create a width between the first post and the second post, an anode electrode coupled to the first post and the second post and extending laterally from the first post to the second post, and a dielectric layer disposed between the first silicon substrate and the second silicon substrate.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: November 21, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Qianfan Xu, Xiao Shen, Hongmin Chen
  • Patent number: 9618709
    Abstract: A technique for fabricating a hybrid optical source is described. During this fabrication technique, a III-V compound-semiconductor active gain medium is integrated with a silicon-on-insulator (SOI) chip (or wafer) using edge coupling to form a co-planar hybrid optical source. Using a backside etch-assisted cleaving technique, and a temporary transparent substrate with alignment markers, a III-V compound-semiconductor chip with proper edge polish and coating can be integrated with a processed SOI chip (or wafer) with accurate alignment. This fabrication technique may significantly reduce the alignment complexity when fabricating the hybrid optical source, and may enable wafer-scale integration.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: April 11, 2017
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventors: Xuezhe Zheng, Ivan Shubin, Ying Luo, Guoliang Li, Ashok V. Krishnamoorthy
  • Patent number: 9559602
    Abstract: A resonant converter is described that includes at least one power switch. The at least one power switch is characterized by a non-linearity coefficient that is less than or equal to a first threshold and a figure-of-merit that is less than or equal to a second threshold. The figure-of-merit being associated with an on-resistance of the at least one power switch and an output charge of the at least one power switch.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: January 31, 2017
    Assignee: Infineon Technologies Austria AG
    Inventor: Gerald Deboy
  • Patent number: 9470844
    Abstract: A low loss high extinction ratio on-chip polarizer has at bi-layer optical taper with an input port of width W1 that communicates with a mode squeezer, followed by an S-bend (or dump bend), and finally a taper having an output port of width W1. The illumination that passes through the low loss high extinction ratio on-chip polarizer has a TM0 mode converted to a TE1 mode which is lost in the mode squeezer and S-bend section, while an input TE0 mode is delivered at the output as a substantially pure TE0 signal of nearly undiminished intensity.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 18, 2016
    Assignee: Coriant Advanced Technology, LLC
    Inventors: Yangjin Ma, Ruizhi Shi, Yang Liu
  • Patent number: 9455299
    Abstract: Non-silicon based semiconductor devices are integrated into silicon fabrication processes by using aspect-ratio-trapping materials. Non-silicon light-sensing devices in a least a portion of a crystalline material can output electrons generated by light absorption therein. Exemplary light-sensing devices can have relatively large micron dimensions. As an exemplary application, complementary-metal-oxide-semiconductor photodetectors are formed on a silicon substrate by incorporating an aspect-ratio-trapping technique.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 27, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Zhiyuan Cheng, James Fiorenza, Calvin Sheen, Anthony J. Lochtefeld
  • Patent number: 9366822
    Abstract: A photonic resonator system is designed to use thermal tuning to adjust the resonant wavelength of each resonator in the system, with a separate tuning circuit associated with each resonator so that individual adjustments may be made. The common electrical ground connection between the tuning circuits is particularly formed to provide thermal isolation between adjacent resonators by including a capacitor along each return path to ground, where the presence of the capacitor's dielectric material provides the thermal isolation. The use of capacitively coupling necessarily requires the use of an AC current as an input to the heater element (conductor/resistor) of each resonator, where the RMS value of the AC signal is indicative of the amount of heat that is generated along the element and the degree of wavelength tuning that is obtained.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: June 14, 2016
    Assignee: Sandia Corporation
    Inventors: Anthony L. Lentine, Rohan Deodatta Kekatpure, William A. Zortman, Daniel J. Savignon
  • Patent number: 9348091
    Abstract: Transmissive diffraction grating(s), reflector(s), and multiple optical sources/receivers are arranged such that each one of multiple optical signals at corresponding different wavelengths co-propagating along a multiplexed beam path would: (i) be transmissively, dispersively diffracted at a multiplexed transmission region of a grating; (ii) propagate between the multiplexed transmission region and multiple demultiplexed transmission regions of a grating undergoing reflection(s) from the reflector(s); (iii) be transmissively, dispersively diffracted at the demultiplexed transmission regions; and (iv) propagate between the demultiplexed transmission regions and the sources/receivers along multiple demultiplexed beam paths.
    Type: Grant
    Filed: December 20, 2014
    Date of Patent: May 24, 2016
    Assignee: Finisar Corporation
    Inventors: Thomas W. Mossberg, Christoph M. Greiner, Dmitri Iazikov
  • Patent number: 9261647
    Abstract: Quasi-phase matched (QPM), semiconductor photonic waveguides include periodically-poled alternating first and second sections. The first sections exhibit a high degree of optical coupling (abbreviated “X2”), while the second sections have a low X2. The alternating first and second sections may comprise high-strain and low-strain sections made of different material states (such as crystalline and amorphous material states) that exhibit high and low X2 properties when formed on a particular substrate, and/or strained corrugated sections of different widths. The QPM semiconductor waveguides may be implemented as silicon-on-insulator (SOI), or germanium-on-silicon structures compatible with standard CMOS processes, or as silicon-on-sapphire (SOS) structures.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: February 16, 2016
    Assignee: Sandia Corporation
    Inventors: Johathan Albert Cox, Peter Thomas Rakich
  • Patent number: 9222133
    Abstract: Substrates, systems and methods for analyzing materials that include waveguide arrays disposed upon or within the substrate such that evanescent fields emanating from the waveguides illuminate materials disposed upon or proximal to the surface of the substrate, permitting analysis of such materials. The substrates, systems and methods are used in a variety of analytical operations, including, inter alia, nucleic acid analysis, including hybridization and sequencing analyses, cellular analyses and other molecular analyses.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: December 29, 2015
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Paul Lundquist, Stephen Turner
  • Patent number: 9223087
    Abstract: An imprinted optical micro-channel structure for transmitting light to an optical receiver or receiving light from an optical transmitter includes a substrate and a cured optical layer formed in relation to the substrate. The cured optical layer includes one or more optical micro-channels imprinted in the cured optical layer. Each optical micro-channel includes a cured light-transparent material forming a light-pipe that transmits light in the optical micro-channel. The optical transmitter is located in alignment with a light-pipe for transmitting light through the light-pipe or the optical receiver is located in alignment with a light-pipe for receiving light from the light-pipe.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: December 29, 2015
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Ronald Steven Cok, Todd Mathew Spath
  • Patent number: 9207469
    Abstract: An athermal optical modulator includes a waveguide, a ring resonator configured to receive light input from the waveguide and output modulated light to the waveguide, the ring resonator including a ridge unit located at a center of the ring resonator in a vertical section, a first contact connected to one side of the ridge unit and a second contact connected to the other side of the ridge unit, the first contact and the second contact forming paths for applying electricity to the ring resonator to form an electric field in the ring resonator, and a polymer layer covering the ridge unit.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: December 8, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moon-seung Yang, Seong-ho Cho, Mohammad Rakib Uddin
  • Patent number: 9142504
    Abstract: Methods of forming features are disclosed. One method comprises forming a resist over a pool of acidic or basic material on a substrate structure, selectively exposing the resist to an energy source to form exposed resist portions and non-exposed resist portions, and diffusing acid or base of the acidic or basic material from the pool into proximal portions of the resist. Another method comprises forming a plurality of recesses in a substrate structure. The plurality of recesses are filled with a pool material comprising acid or base. A resist is formed over the pool material and the substrate structure and acid or base is diffused into adjacent portions of the resist. The resist is patterned to form openings in the resist. The openings comprise wider portions distal to the substrate structure and narrower portions proximal to the substrate structure. Additional methods and semiconductor device structures including the features are disclosed.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: September 22, 2015
    Assignee: MICRON TECHNOLOGY, INC.
    Inventors: Adam L. Olson, Kaveri Jain, Lijing Gou, William R. Brown, Ho Seop Eom, Xue Chen, Anton J. deVilliers
  • Patent number: 9116293
    Abstract: A reflective structure includes an input/output port and an optical splitter coupled to the input/output port. The optical splitter has a first branch and a second branch. The reflective structure also includes a first resonant cavity optically coupled to the first branch of the optical splitter. The first resonant cavity comprises a first set of reflectors and a first waveguide region disposed between the first set of reflectors. The reflective structures further includes a second resonant cavity optically coupled to the second branch of the optical splitter. The second resonant cavity comprises a second set of reflectors and a second waveguide region disposed between the second set of reflectors.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 25, 2015
    Assignee: Skorpios Technologies, Inc.
    Inventors: Derek Van Orden, Amit Mizrahi, Timothy Creazzo, Stephen B. Krasulick
  • Patent number: 9042685
    Abstract: This invention concerns real-time multi-impairment signal performance monitoring. In particular it concerns an optical device, for instance a monolithic integrated photonics chip, comprising a waveguide having an input region to receive a signal for characterization, and a narrow band CW laser signal. A non-linear waveguide region to mix the two received signals. More than one output region, each equipped with bandpass filters that extract respective discrete frequency bands of the RF spectrum of the mixed signals. And, also comprising (slow) power detectors to output the extracted discrete frequency banded signals.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: May 26, 2015
    Assignee: The University of Sydney
    Inventors: Trung Duc Vo, William Peter Corcoran, Mark David Pelusi, David James Moss, Benjamin John Eggleton, Jochen Bernhard Schroeder
  • Patent number: 9036955
    Abstract: An optical interposer comprising: (a) a substrate having a planar surface: (b) at least one groove defined in the planar surface and extending from an edge of the substrate to a terminal end, the groove having side walls and a first facet at the terminal end perpendicular to side walls, the facet having a first angle relative to the planar surface, the first angle being about 45 degrees; and (c) a reflective coating on the first facet.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: May 19, 2015
    Assignee: TYCO ELECTRONICS CORPORATION
    Inventors: Terry Patrick Bowen, Richard Dean Miller, Robert Nelson Fair, Jr.
  • Patent number: 9031373
    Abstract: Provided are a lightwave circuit and a method of manufacturing the same. The lightwave circuit includes a first substrate having an engraved core formation groove which is formed on an upper portion of the first substrate, a core layer which is formed inside the engraved core formation groove, a BPSG bonding layer which is formed on the first substrate including the core layer, and a second substrate which is formed on the BPSG bonding layer. Accordingly, light loss and branching uniformity of the lightwave circuit are effectively improved, and the lightwave circuit is manufactured simply and inexpensively while also further improving light loss and branching uniformity of the lightwave circuit.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 12, 2015
    Inventors: Seo Young Lee, Hyung Jong Lee
  • Patent number: 9020312
    Abstract: Provided is a connecting channel that has manufacturing tolerance, can suppress light loses, improves reliability of the connecting channel, and connects an optical device and an optical waveguide. The connecting channel includes first silicon layer (3) that has rib-shaped part (3?) extending in a longitudinal direction of the connecting channel, and second silicon layer (6) that is stacked on first silicon layer (3) to partially overlap rib-shaped part 3?, and extends in the longitudinal direction. Second silicon layer (6) has tapered part (W) tapered toward one end in the longitudinal direction, and is located away from an upper portion of rib-shaped part (3?) at an end surface of one end in the longitudinal direction.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: April 28, 2015
    Assignee: NEC Corporation
    Inventors: Jun Ushida, Junichi Fujikata
  • Patent number: 9014526
    Abstract: Waveguide apparatuses and methods are provided. A waveguide method (700) can include stacking (710) a plurality of layers (110) to form a plurality of waveguides (120). Each of the plurality of layers can include at least one waveguide surface (140). The method can further include aligning (720) the plurality of layers using at least one alignment device (160). The method can also include trapping (730) the aligned, stacked plurality of layers between a first member (170) and second member (180).
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: April 21, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Paul Kessler Rosenberg, Michael Renne Ty Tan, Sagi Varghese Mathai, Arlen L. Roesner
  • Patent number: 9008480
    Abstract: In order to provide a method of efficiently manufacturing an optical waveguide core having an endface inclined at a predetermined angle, the following method of manufacturing an optical waveguide core is employed.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 14, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tohru Nakashiba, Shinji Hashimoto, Naoyuki Kondou, Junko Yashiro
  • Patent number: 9002144
    Abstract: A downsized, low-power electro-optical modulator that achieves reducing both of the additional resistance in the modulation portion and the optical loss each caused by electrodes at the same time is provided. The electro-optical modulator includes a rib waveguide formed by stacking a second semiconductor layer 9 having a different conductivity type from a first semiconductor layer 8 on the first semiconductor layer 8 via a dielectric film 11, and the semiconductor layers 8 and 9 are connectable to an external terminal via highly-doped portions 4 and 10, respectively. In a region in the vicinity of contact surfaces of the semiconductor layers 8 and 9 with the dielectric film 11, a free carrier is accumulated, removed, or inverted by an electrical signal from the external terminal, and whereby a concentration of the free carrier in an electric field region of an optical signal is modulated, so that a phase of the optical signal can be modulated.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: April 7, 2015
    Assignee: NEC Corporation
    Inventors: Junichi Fujikata, Jun Ushida, Akio Toda, Motofumi Saitoh
  • Publication number: 20150093086
    Abstract: The present invention provides an image compensating device for a joint display. The image compensating device includes a light incident surface, a parallel light emitting surface, and a plurality of light guiding channels extending from the light incident surface to the light emitting surface. The light emitting surface of image compensating device is greater than the light incident surface. The section area of each light guiding channel is gradually increased from the light incident surface to the light emitting surface, by which to extend the image provided by the peripheral region of each cell of the joint display and provide a seamless joint image.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 2, 2015
    Inventor: I-WEI WU
  • Publication number: 20150093087
    Abstract: An image compensating portion located on a display panel includes a light incident surface, a light emitting surface, and a plurality of light guiding channels parallel with each other. The display panel includes a main display region and a periphery display region. A projection of the light emitting surface on the light incident surface is larger than an area of the light incident surface. The light guiding channel guides lights from the light incident surface to be emitted from the light emitting surface for being extended.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventor: I-WEI WU
  • Patent number: 8983238
    Abstract: An optical resonator configured to be tuned using piezoelectric actuation, includes a core, the core being configured to transmit light; a piezoelectric layer; a first electrode and a second electrode. The piezoelectric layer is interposed between the first electrode and the second electrode. A voltage difference across the first and second electrodes alters a geometric dimension of the piezoelectric layer such that physical force is applied to the core and a resonant optical frequency of the resonator is changed. A method of utilizing mechanical stress to tune an optical resonator includes applying physical force to the resonator by subjecting a piezoelectric material to an electric field, the physical force changing a resonant frequency of the resonator.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: March 17, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexandre Bratkovski, Sagi Mathai, Duncan Stewart
  • Patent number: 8970013
    Abstract: A semiconductor light-receiving element includes: a light-receiving portion that is provided on a semi-insulating substrate and has a mesa shape in which semiconductor layers are laminated; a lamination structure of insulating films that is provided on a part of a side face of the light-receiving portion and has a structure in which a first insulating film comprised of a silicon nitride film, a second insulating film comprised of a silicon oxynitride film and a third insulating film comprised of a silicon nitride film are laminated in contact with each other; and a resin film that is provided adjacent to the light-receiving portion, the resin film being sandwiched in or between any of the first insulating film, the second insulating film and the third insulating film.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: March 3, 2015
    Assignee: Sumitomo Electric Device Innovations, Inc.
    Inventors: Ryuji Yamabi, Yoshifumi Nishimoto
  • Patent number: 8971494
    Abstract: Besides normal pixels, a plurality detection pixels are arranged in an imaging surface of an FPD. In preliminary imaging, X-rays are emitted to an imaged body portion of a patient. The detection pixels receive the X-rays passed through the body portion, and output AEC detection signals. If an integral value of the AEC detection signals has reached a threshold value, X-ray emission is stopped and the preliminary imaging is completed. A main exposure condition determination unit determines a main irradiation time, being an irradiation time with the X-rays during the main imaging, based on an irradiation time with the X-rays during the preliminary imaging and the integral value of the AEC detection signals. The main imaging is performed using the main irradiation time. The normal pixels continue a charge accumulation operation over the preliminary imaging and the main imaging to produce an X-ray image for use in diagnosis.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: March 3, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Tajima
  • Patent number: 8958678
    Abstract: An electro-optic device, comprising an insulating layer and a layer of light-carrying material adjacent the insulating layer. The layer of light-carrying material, such as silicon, comprises a first doped region of a first type and a second doped region of a second, different type abutting the first doped region to form a pn junction. The first doped region has a first thickness at the junction, and the second doped region has a second thickness at the junction, the first thickness being greater than the second thickness, defining a waveguide rib in the first doped region for propagating optical signals. Since the position of the junction coincides with the sidewall of the waveguide rib a self-aligned process can be used in order to simplify the fabrication process and increase yield.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: February 17, 2015
    Assignee: University of Southampton
    Inventors: David Thomson, Frederic Gardes, Graham Reed
  • Patent number: 8958531
    Abstract: To provide an X-ray waveguide which: shows a small propagation loss of an X-ray; has a waveguide mode with its phase controlled; does not deteriorate owing to oxidation; and can be easily produced, an X-ray waveguide, including: a core for guiding an X-ray in such a wavelength band that a real part of the refractive index of a material is 1 or less; and a cladding for confining the X-ray in the core, in which: the core has a one-dimensional periodic structure containing multiple materials having different real parts of the refractive index; the multiple materials include one of an organic material, a gas, and a vacuum, and an inorganic material; and the core and the cladding are formed so that the critical angle for total reflection at an interface between the core and the cladding is larger than a Bragg angle resulting from a periodicity of the one-dimensional periodic structure, is realized.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kohei Okamoto, Atsushi Komoto, Wataru Kubo, Hirokatsu Miyata, Takashi Noma
  • Patent number: 8953918
    Abstract: An apparatus includes a channel waveguide, a ridge waveguide including a ridge and having a bottom surface, a coupler between the channel waveguide and the ridge waveguide, the coupler including an opening configured to transmit light from the channel waveguide to the ridge waveguide, wherein the opening has a first segment having a first width and a second segment having a second width different from the first width, and a protrusion extending from the ridge beyond the plane of the bottom surface.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 10, 2015
    Assignee: Seagate Technology LLC
    Inventor: Amit Vasant Itagi
  • Publication number: 20150036991
    Abstract: A method of making a grating in a waveguide includes forming a waveguide material over a substrate, the waveguide material having a thickness less than or equal to about 100 nanometers (nm). The method further includes forming a photoresist over the waveguide material and patterning the photoresist. The method further includes forming a first set of openings in the waveguide material through the patterned substrate and filling the first set of openings with a metal material.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 5, 2015
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Jui Hsieh LAI, Ying-Hao KUO
  • Patent number: 8923664
    Abstract: A method and system for multi-mode integrated receivers are disclosed and may include receiving an optical signal from an optical fiber coupled to a chip comprising a photonic circuit. The photonic circuit may comprise an optical coupler, one or more multi-mode optical waveguides, and a detector. The received optical signal may be coupled to a plurality of optical modes in the one or more multi-mode optical waveguides, which are communicated to a detector to generate an electrical signal from the communicated modes. The optical coupler may comprise a grating coupler. The chip may comprise a CMOS chip, and the optical fiber may comprise a single-mode or a multi-mode fiber. The detector may comprise a germanium or silicon-germanium photodiode, and/or a waveguide detector. The optical fiber may be coupled to a top surface of the chip and the multi-mode optical waveguides may comprise rib waveguides.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: December 30, 2014
    Assignee: Luxtera, Inc.
    Inventors: Attila Mekis, Gianlorenzo Masini
  • Patent number: 8909009
    Abstract: Lightguides, devices incorporating lightguides, processes for making lightguides, and tools used to make lightguides are described. A lightguide includes light extractors arranged in a plurality of regions on a surface of the lightguide. The orientation of light extractors in each region is arranged to enhance uniformity and brightness across a surface of the lightguide and to provide enhanced defect hiding. The efficiency of the light extractors is controlled by the angle of a given light extractor face with respect to a light source illuminating the light guide.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: December 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Tzu-Chen Lee, David A. Ender, Guoping Mao, Jun-Ying Zhang, Jaime B. Willoughby
  • Publication number: 20140355923
    Abstract: A ridge waveguide structure includes a substrate having a top surface; a ridge structure protruding from the top surface; and a waveguide formed in the ridge structure and a shape of the waveguide is corresponding to a shape of the ridge structure; the ridge structure includes a Y-shaped input section and a Y-shaped output section, the Y-shaped input section includes a total input section, a first branch and a second branch, the first branch and the second branch are diverged from the total input section and converged into the Y-shaped output section. The relation also relates to an electro-optic modulator.
    Type: Application
    Filed: December 23, 2013
    Publication date: December 4, 2014
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: HSIN-SHUN HUANG
  • Patent number: 8903203
    Abstract: An optical waveguide device includes a wiring substrate, an optical waveguide bonded on the wiring substrate and having a light path conversion inclined surface on both ends, and a light path conversion mirror formed to contact the light path conversion inclined surface of the optical waveguide and formed of a light reflective resin layer or a metal paste layer. In case the light reflective resin layer is used as the light path conversion mirror, the light reflective resin layer may be formed partially only on the side of the light path conversion inclined surface, or may be formed on the whole of the wiring substrate to coat the optical waveguide.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 2, 2014
    Assignee: Shinko Electric Industries Co.
    Inventors: Takanori Yamamoto, Kenji Yanagisawa, Kazunao Yamamoto, Hideki Yonekura
  • Patent number: 8885994
    Abstract: The present invention provides a planar waveguide. In one embodiment, the planar waveguide includes first and third layers formed above a substrate and adjacent each other. The first and third layers are formed of a first material having a first index of refraction. The planar waveguide also includes a second layer formed between the first and third layers of a second material having a second index of refraction that is larger than the first index of refraction. The planar waveguide further includes a plurality of organo-functional siloxane based resin or polymer waveguides formed in the second layer. Each organo-functional siloxane based resin or polymer waveguide has an input on one edge of the second layer and an output on one edge of the second layer so that the input and output are on different line-of-sight paths.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 11, 2014
    Assignees: Dow Corning Corporation, Cambridge Enterprise Limited
    Inventors: Joseph Beals, Nikolas Bamiedakis, Terry Clapp, Richard Penty, Ian White, Adrian Wonfor, Jon Degroot
  • Patent number: 8879880
    Abstract: A surface plasmon optical waveguide includes a lower cladding, a metal thin layer on the lower cladding, low-k dielectric layers spaced apart from each other on one surface of the metal thin layer, and an upper cladding covering the low-k dielectric layers and the metal thin layer uncovered between the low-k dielectric layers. A refractive index of the low-k dielectric layers is less than a refractive index of the lower and upper claddings.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: November 4, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Min-Su Kim
  • Patent number: 8873910
    Abstract: In one aspect of the invention, roughly stated, Applicants have discovered that a compensation material within slot elongated in a direction parallel to a segment of waveguide in an arrayed waveguide grating apparatus can compensate for both first and second order change in refractive index of the base waveguide material over temperature. Unlike the transverse slots of conventional linear athermalization techniques, the elongated slot generally parallel to the base material defines a composite waveguide section having a second order effective index of refraction temperature dependency which can be utilized to accurately minimize the temperature dependence of the overall optical path length to both the first and second order. The techniques described herein are also generalizeable to neutralization of the optical path length temperature dependence to any order.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: October 28, 2014
    Assignee: Gemfire Corporation
    Inventors: Hindrik Freerk Bulthuis, Paula McDade, Gunter B. Beelen
  • Patent number: 8873912
    Abstract: A method for fabricating an optical waveguide includes setting, on a lower cladding of an optical waveguide, a light-reflecting feature and at least one waveguide core distinct from the reflecting feature. An upper cladding is applied that embeds both the light-reflecting feature and the waveguide core.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Roger F. Dangel, Folkert Horst, Tobias P. Lamprecht, Bert J. Offrein
  • Patent number: 8859268
    Abstract: The present invention addresses the simultaneous detection and quantitative measurement of multiple biomolecules, e.g., pathogen biomarkers through either a sandwich assay approach or a lipid insertion approach. The invention can further employ a multichannel, structure with multi-sensor elements per channel.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: October 14, 2014
    Assignee: Los Alamos National Security, LLC
    Inventors: Harshini Mukundan, Hongzhi Xie, Basil I. Swanson, Jennifer Martinez, Wynne K. Grace
  • Patent number: 8837888
    Abstract: The present invention relates to a multimode optical fiber provided with a region where a refractive index in a peripheral region of a core has deviation from an ideal shape of an ?-power refractive-index profile and where an absolute value of an amount of the deviation is not less than 0.005%, so as to generate radiation modes, and a refractive index of a cladding is higher than that of the deviation region.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 16, 2014
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Itaru Sakabe, Kazuhiro Yonezawa