Optical Computing Without Diffraction Patents (Class 359/107)
  • Patent number: 10345678
    Abstract: A technique relates to a circuit for a sum frequency generator. A first resonator is connected to a Josephson ring modulator (JRM), and the first resonator is configured to receive a first photon at a first frequency. A second resonator is connected to the JRM, and the second resonator is configured to have a first harmonic and no second harmonic. The second resonator is configured to receive a second photon at a second frequency, and the first resonator is configured to output an up-converted photon. The up-converted photon has an up-converted frequency that is a sum of the first frequency and the second frequency.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: July 9, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Baleegh Abdo
  • Patent number: 10274989
    Abstract: Optical systems for performing matrix-matrix multiplication in real time utilizing spatially coherent input light and wavelength multiplexing.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 30, 2019
    Assignee: Fathom Computing
    Inventors: William Andregg, Michael Andregg, Robert T. Weverka, Lionel Clermont
  • Patent number: 10268948
    Abstract: There is provided a computer implemented data driven classification and troubleshooting system and method. The system has an interface application enabled to receive data. The system has an associative memory software in communication with the interface application via an API. The associative memory software has an associative memory and a machine learning algorithm. The system has one or more individual areas, within the associative memory, requiring one or more troubleshooting actions to improve accuracy of the individual areas. The system has at least one troubleshooting tool enabled by the interface application. The at least one troubleshooting tool enables or performs the troubleshooting actions. The system has a quality rating metric (QRM) that measures a strength and an assurance that one or more predictions of the associative memory are correct. The one or more troubleshooting actions results in improving the accuracy and the performance of the associative memory.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: April 23, 2019
    Assignee: The Boeing Company
    Inventors: Brian Warn, Jaime A. Flores, Kyle M. Nakamoto, Danielle C. Young, Fredwilliam Esguerra, William G. Arnold
  • Patent number: 10234701
    Abstract: In the Waveguide Array Modulator (WAM) a single electrical signal drives an array of waveguide optical modulators, creating multiple modulated output signals that can be combined to provide a higher output power than from a single waveguide based modulator, enabling a higher dynamic range system. Alternatively, using a WAM in which different waveguide optical modulators are designed for different dynamic ranges, e.g. one highly efficient modulator for low level signals and one low efficiency but linear modulator for high level signals, the WAM based system can provide a higher dynamic range than from a single waveguide based modulator. Various WAM based systems for different applications are included.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: March 19, 2019
    Assignee: Morton Photonics
    Inventors: Paul A. Morton, Jacob Khurgin
  • Patent number: 10185288
    Abstract: A method and apparatus for measuring a quality of a holographic image are provided. An image quality measuring method may include acquiring a first image including a holographic image in a background, and a second image that does not include a holographic image, the first image and the second image being on the same background, extracting a gray level value and a dark-noise counted level value from the first image in a selected range of the first image, extracting a gray level value and a dark-noise counted level value from the second image in the same range as the selected range of the first image, and determining a holographic contrast ratio (HCR) of the holographic image based on the extracted gray level values and the extracted dark-noise counted level values.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 22, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Min Sung Yoon
  • Patent number: 10171088
    Abstract: The inventive concept relates to a quantum circuit that shifts the phase of a target qubit by ?/2n?1 based on a control qubit. The quantum circuit may include a first auxiliary circuit, a rotation gate, and a second auxiliary circuit. The first auxiliary circuit converts the first qubit state into the second qubit state according to the entanglement of a control qubit, a target qubit, and an ancillary qubit having a |0> state. The rotation gate shifts the phase for some basis states of the second qubit state by ?/2n?1, and converts the second qubit state to the third qubit state. The second auxiliary circuit converts the third qubit state to the fourth qubit state such that the phase of the target qubit is shifted by ?/2n?1.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: January 1, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Taewan Kim, Byung-Soo Choi
  • Patent number: 10095835
    Abstract: Apparatus, systems and methods for pre-processing, analyzing, and storing genomic data through a scalable, distributed analysis system across a network is presented.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 9, 2018
    Assignee: Nant Holdings IP, LLC
    Inventor: Patrick Soon-Shiong
  • Patent number: 10082539
    Abstract: A method and associated systems for using direct sums and invariance groups to optimize the testing of partially symmetric quantum-logic circuits is disclosed. A test system receives information that describes the architecture of a quantum-logic circuit to be tested. The system uses this information to organize the circuit's inputs into two or more mutually exclusive subsets of inputs. The system computes a direct sum of a set of groups associated with the subsets in order to generate an invariance group that contains one or more invariant permutations of the circuit's inputs. These invariant permutations can be used to reduce the number of tests required to fully verify the circuit for all possible input vectors. Once one specific input vector has been verified, there is no need to test other vectors that can be generated by performing any one of the invariant permutations upon the previously verified vector.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventor: Pawel Jasionowski
  • Patent number: 9995859
    Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the the same focal distance for each wavelength, or at different focal distances according to the desired application. The scattering elements fabricated on a substrate can be peeled off with a polymer matrix and attached to a lens to modify the optical properties of the lens.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: June 12, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Seyedeh Mahsa Kamali, Ehsan Arbabi, Amir Arbabi, Andrei Faraon
  • Patent number: 9915851
    Abstract: A laser system may include a laser source configured to generate a first laser light beam, a beamsplitter configured to split the first laser light beam into a plurality of second laser light beams, and a multi-channel acousto-optic modulator (AOM). The multi-channel AOM may include a common acousto-optic medium configured to receive the plurality of second laser light beams, and a respective phased array transducer comprising a plurality of electrodes coupled to the acousto-optic medium for each of the second laser light beams. The laser system may further include a plurality of radio frequency (RF) drivers configured to generate respective RF drive signals for the phased array transducer electrodes.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: March 13, 2018
    Assignee: HARRIS CORPORATION
    Inventors: Peter A. Wasilousky, Randall K. Morse, Lee M. Burberry, Michael R. Lange, Catheryn D. Logan, Pat O. Bentley
  • Patent number: 9875216
    Abstract: An NP-processor is provided that is based on a computing environment consisting of a finite set of multiple-element triggers that are interconnected by common elements. The NP-processor has interference relations between the computing environment elements. Negative feedback is introduced and is intended for isolating an active state, which is the solution to the problem, from an exponential number of modes of oscillation in the computing environment.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 23, 2018
    Inventor: Anatoliy Anatolievich Novikov
  • Patent number: 9851742
    Abstract: A photonic quantum memory is provided. The photonic quantum memory includes entanglement basis conversion module configured to receive a first polarization-entangled photon pair and to produce a second entangled photon pair. The second polarization-entangled photon pair can he a time-bin entangled or a propagation direction-entangled photon pair. The photonic quantum memory further includes a photonic storage configured to receive the second entangled photon pair from the basis conversion module and to store the second entangled photon pair.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: December 26, 2017
    Assignee: The MITRE Corporation
    Inventors: Gerald N. Gilbert, Jonathan S. Hodges, Stephen Peter Pappas, Yaakov Shmuel Weinstein
  • Patent number: 9812845
    Abstract: An optical transmitter includes: a set of reflective semiconductor optical amplifiers (RSOAs) or other reflective gain media, a set of ring filters, a set of intermediate waveguides, a shared waveguide, a shared loop mirror, and an output waveguide. Each intermediate waveguide channels light from an RSOA in proximity to an associated ring filter to cause optically coupled light to circulate in the associated ring filter. The shared waveguide is coupled to the shared loop mirror, and is located in proximity to the set of ring filters, so that light circulating in each ring filter causes optically coupled light to flow in the shared waveguide. Each RSOA forms a lasing cavity with the shared loop reflector, wherein each lasing cavity has a different wavelength associated with a resonance of its associated ring filter. The output waveguide is optically coupled to the shared loop mirror and includes an electro-optical modulator.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: November 7, 2017
    Assignee: Oracle International Corporation
    Inventors: Jin-Hyoung Lee, Xuezhe Zheng, Daniel Y. Lee, Ying Luo, Ashok V. Krishnamoorthy
  • Patent number: 9768958
    Abstract: Embodiments of the present invention provide a method and system of encryption, decryption, and encryption and decryption based on visible light communication. A transmit end performs a logical operation on an original data signal and a pseudocode signal varying with a unit interval to obtain a scrambling code signal, and sends the scrambling code signal in a form of a visible light signal. A receive end receives the visible light signal sent by the transmit end, and converts the visible light signal into a digital signal; and decodes the digital signal and a pseudocode signal varying with a unit interval, so as to obtain the original data signal. The visible light signal transmitted between the transmit end and the receive end is not original data, but a scrambling code signal varying with a unit interval, thereby improving security of the photonic Internet of Things.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 19, 2017
    Assignee: KUANG-CHI INNOVATIVE TECHNOLOGY LTD.
    Inventors: Ruopeng Liu, Lin Luan, Guangjin Xiao
  • Patent number: 9614280
    Abstract: An optical feed network for a phased-array antenna may comprise a phase-based feed network that may include electro-optical phase shifting.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 4, 2017
    Assignee: Phase Sensitive Innovations, Inc.
    Inventors: Shouyuan Shi, Jian Bai, Dennis W. Prather
  • Patent number: 9590600
    Abstract: An optical flip-flop circuit that includes an optical thyristor configured to receive a digital optical signal input and produce a digital signal output based on the ON/OFF state of the digital optical signal input. The optical flip-flop circuit further includes control circuitry operably coupled to the terminals of the optical thyristor. The control circuitry is configured to control switching operation of the optical thyristor in response to the level of a digital electrical signal input.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: March 7, 2017
    Assignees: Opel Solar, Inc., THE UNIVERSITY OF CONNECTICUT
    Inventor: Geoff W. Taylor
  • Patent number: 9500933
    Abstract: A system, method, and apparatus for delayed optical logic gates based on slow light and enhanced nondegenerate four-wave mixing processes, where a single or multiple delayed optical routers are utilized for dark resonance interactions in which two-color lasers interact with a three-level nonlinear optical medium comprised of two ground states and one excited state through the nondegenerate four-wave mixing processes. The delayed optical logic mechanism is based on combination of single or multiple dark resonance-induced two-photon coherence conversion via slow light phenomenon. The two-photon coherence induced on the ground states is optically detected via nondegenerate four-wave mixing processes. The nondegenerate four-wave mixing generation is enhanced owing to dark resonance or electromagnetically induced transparency. The delayed optical logic gates have potential to keep up ultra-high-bandwidth optical information processing using relatively slow electronic processing devices.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: November 22, 2016
    Assignees: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, INHA INDUSTRY PARTNERSHIP INSTITUTE
    Inventor: Byoung Seung Ham
  • Patent number: 9269052
    Abstract: The current application is directed to methods and quantum circuits that prepare qubits in specified non-stabilizer quantum states that can, in turn, be used for a variety of different purposes, including in a quantum-circuit implementation of an arbitrary single-qubit unitary quantum gate that imparts a specified, arbitrary rotation to the state-vector representation of the state of an input qubit. In certain implementations, the methods and systems consume multiple magic-state qubits in order to carry out probabilistic rotation operators to prepare qubits with state vectors having specified rotation angles with respect to a rotation axis. These qubits are used as resources input to various quantum circuits, including the quantum-circuit implementation of an arbitrary single-qubit unitary quantum gate.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 23, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Krysta Svore, Guillaume Duclos-Cianci
  • Patent number: 9151903
    Abstract: Methods of operating an optical circuit switch and optical circuit switches are disclosed. A command to make an optical connection between a first port and a second port may be received. A determination whether or not input signal light is present at the first port may be made. When light is present at the first port, an optical connection may be made between the first port and the second port. When light is not present at the first port, the optical circuit switch may wait until light is present at the first port before making the connection.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: October 6, 2015
    Assignee: Calient Technologies, Inc.
    Inventors: Jitender Miglani, Mike Deacon, Vijayan Thattai
  • Patent number: 9075250
    Abstract: A system, method, and apparatus for delayed optical logic gates based on slow light and enhanced nondegenerate four-wave mixing processes, where a single or multiple delayed optical routers are utilized for dark resonance interactions in which two-color lasers interact with a three-level nonlinear optical medium comprised of two ground states and one excited state through the nondegenerate four-wave mixing processes. The delayed optical logic mechanism is based on combination of single or multiple dark resonance-induced two-photon coherence conversion via slow light phenomenon. The two-photon coherence induced on the ground states is optically detected via nondegenerate four-wave mixing processes. The nondegenerate four-wave mixing generation is enhanced owing to dark resonance or electromagnetically induced transparency. The delayed optical logic gates have potential to keep up ultra-high-bandwidth optical information processing using relatively slow electronic processing devices.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 7, 2015
    Assignees: INHA INDUSTRY PARTNERSHIP INSTITUTE, GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventor: Byoung-Seung Ham
  • Publication number: 20150116802
    Abstract: A two-input bistable resonator that can be switched in a robust way by phase modulation of the input beams is presented. An optical flip-flop of the present invention may be embodied as a two-input Kerr resonator. The disclosed switching mechanism is compatible with cross-phase modulation induced by set and reset pulses for realization of an ultrafast, passive, all-optical memory element.
    Type: Application
    Filed: October 24, 2013
    Publication date: April 30, 2015
    Inventors: Govind Agrawal, Brian Daniel
  • Patent number: 9001119
    Abstract: The instant application describes display device for switching display mode between first display mode for displaying stereoscopic images with eyewear device which adjusts incident light amounts to the left and right eyes, and second display mode different from the first display mode. The display device includes signal generator which generates timing signals for notifying timings of increasing the incident light amount to the left and right eyes in the first and second display modes or stop signals for stopping the adjustment operation, as control signals for the adjustment operation; and transmitter which transmits the control signals to the eyewear device. During the first display mode, the transmitter transmits the timing signals for the first display mode. Switching operation from the first to second display mode causes the transmitter to transmit the stop signal and then the timing signal for the second display mode to the eyewear device.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 7, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuhiro Mihara, Keisuke Suetsugi, Katsuo Saigo, Seiji Nakazawa
  • Patent number: 9002308
    Abstract: A system is disclosed that may include an Automatic Gain Control (AGC) module configured to automatically adjust the gain of a receiver, which is configured to receive a signal. The signal includes a number of commands, which have a characteristic command length and a characteristic command interval. The command length may have a substantially shorter duration than the command interval. The system may also include a slicer configured to interface to a command processor. The system includes a command processor communicatively coupled with the AGC module and/or the slicer for providing a notification to the AGC module and/or the slicer associated with the ends of the commands. The AGC module is configured to adjust the gain of the receiver and the slicer threshold voltage is updated when the notification is received from the command processor.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: April 7, 2015
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Andrew G. Zocher, Richard D. Davis, Theron L. Jones, Luiz A. Razera, Jr., Robert R. Rotzoll
  • Publication number: 20150077821
    Abstract: We describe an integrated waveguide device that creates entanglement between a sequence of periodically spaced (in time) photons in a single input and output mode. The device consists of a polarization maintaining integrated waveguide chip containing a number of delay lines, integrated multimode interferometers with the potential for rapid switching, a polarization controller and off chip computer logic and timing. The device is capable of creating a diverse array of outputs such as linear cluster states and ring cluster states in a single output mode.
    Type: Application
    Filed: January 27, 2014
    Publication date: March 19, 2015
    Inventors: AMOS M. SMITH, MICHAEL L. FANTO
  • Publication number: 20150029569
    Abstract: An apparatus providing an integrated waveguide device that creates entanglement between a symmetrical sequence of periodically spaced (in time) photons in a single input and output mode. The invention comprises a polarization maintaining integrated waveguide chip containing a number of delay lines, integrated multimode interferometers with the potential for rapid switching, a polarization controller and off chip computer logic and timing.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 29, 2015
    Inventors: AMOS M. SMITH, MICHAEL L. FANTO
  • Publication number: 20150029568
    Abstract: An apparatus providing an integrated waveguide device that creates entanglement between a sequence of periodically spaced (in time) photons in a single input and output mode. The invention comprises a polarization maintaining integrated waveguide chip containing a number of delay lines, integrated multimode interferometers with the potential for rapid switching, a polarization controller and off chip computer logic and timing.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 29, 2015
    Inventors: AMOS M. SMITH, MICHAEL L. FANTO
  • Publication number: 20150009548
    Abstract: A method comprising providing an input signal to at least one input node of a computing reservoir by temporally encoding the input signal by modulating the at least one photonic wave as function of the input signal is described. The method further comprises propagating the at least one photonic wave via passive guided or unguided propagation between discrete nodes of the computing reservoir, in which each discrete node is adapted for passively relaying the at least one photonic wave over the passive interconnections connected thereto. The method also comprises obtaining a plurality of readout signals, in which each readout signal is determined by a non-linear relation to the at least one photonic wave in at least one readout node of the computing reservoir, and combining this plurality of readout signals into an output signal by taking into account a plurality of training parameters.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 8, 2015
    Inventors: Peter BIENSTMAN, Joni DAMBRE, Kristof VANDOORNE
  • Publication number: 20140362425
    Abstract: A high density, low power, high performance information system, method and apparatus are described in which perpendicularly oriented processor and memory die stacks (130, 140, 150, 160, 170) include integrated deflectable MEMS optical beam waveguides (e.g., 190) at each die edge to provide optical communications (182-185) in and between die stacks by supplying deflection voltages to a plurality of deflection electrodes (195-197) positioned on and around each MEMS optical beam waveguide (193-194) to provide two-dimensional alignment and controlled feedback to adjust beam alignment and establish optical communication links between die stacks.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventors: Tab A. Stephens, Perry H. Pelley, Michael B. McShane
  • Patent number: 8797621
    Abstract: Disclosed herein are atom phase-controlled double rephasing-based quantum memory and a double-rephased photon echo method therefor. The atom phase-controlled double rephasing-based quantum memory includes an optical medium and an optical pulse generation unit. The optical medium has three energy levels (|1>, |2> and |3>), receives one or more optical pulses from an optical pulse generation unit, and generates output light that satisfies phase matching conditions. The optical pulse generation unit generates at least five optical pulses that resonate among the energy levels of the optical medium.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: August 5, 2014
    Assignees: INHA Industry Partnership Institute, Gwangju Institute of Science and Technology
    Inventor: Byoung Seung Ham
  • Publication number: 20140133001
    Abstract: A method and device for optimal processing of a plurality of sets of coherent states of lights. The method includes: receiving a light having a coherent state; splitting the coherent state into a plurality of identical states (slices), each a coherent state with lower intensity than that of the received coherent state; transferring the information of each of the identical coherent states into a qubit; compressing the quantum information of the qubit into a quantum memory; and quantum processing the quantum information from the quantum memory.
    Type: Application
    Filed: October 5, 2012
    Publication date: May 15, 2014
    Applicant: RAYTHEON BBN TECHNOLOGIES CORP.
    Inventor: RAYTHEON BBN TECHNOLOGIES CORP.
  • Patent number: 8717651
    Abstract: An optical device comprises an optical device stage, which comprises an optical input, an optical AND gate, an optical flip-flop and an optical output. The optical input is arranged to receive an optical input pulse at an input wavelength. The optical AND gate comprises a first input arranged to receive a part of said optical input pulse, a second input arranged to receive at least a part of a flip-flop optical output signal, and an output. The optical AND gate is arranged to generate an AND gate optical output pulse dependent on said flip-flop optical output signal. The optical flip-flop comprises a first input arranged to receive a further part of said optical input pulse, a second input arranged to receive a said AND gate optical output pulse, and an output. The optical flip-flop is arranged to generate said flip-flop output signal at a flip-flop output wavelength. At least a part of the flip-flop output signal is provided to said output.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 6, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Gianluca Meloni, Antonella Bogoni, Antonio D'Errico, Gianluca Berrettini, Luca Poti
  • Publication number: 20140085693
    Abstract: A birefringent reflectarray having a planar metasurface containing metallic patches of subwavelength dimension is provided. The reflectarray is capable of simultaneously reflecting, concentrating, and splitting incident infrared light into two orthogonal linearly polarized reflections, and transforms the phase front of an incoming polarized light to a desired phase for the two reflections. Also provided is an optical modulator having a metasurface containing layers of nanoantennas of subwavelength dimension, and capable of modulating the phase and amplitude of light scattered from the modulator. The optical modulator has ability to perform computation through processing of light.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 27, 2014
    Applicant: Northeastern University
    Inventors: Hossein Mosallaei, Mohsen Farmahini Farahani, Babak Memarzadeh Isfahani
  • Patent number: 8675268
    Abstract: An electromagnetically induced transparent (EIT)-based photonic logic gate. The electromagnetically induced transparent (EIT)-based photonic logic gate is a photonic crystal (PC) and electromagnetically induced transparent (EIT)-based stacked layer which is constituted by a photonic crystal (PCs) layers and an electromagnetically induced transparent material layers. For the photonic crystal (PCs) and electromagnetically induced transparent (EIT)-based stacked layer, a probe field is an input signal which is emitted from the photonic crystal layer and a control field is a control signal which is emitted from the electromagnetically induced transparent material layers. The probe field is an input signal which is emitted from the electromagnetically induced transparent material layers. By varying the detune frequency of probe field and Rabi frequency of control field, the band gap structure can be adjusted.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 18, 2014
    Assignee: Chung-Hua University
    Inventors: Teh-Chau Liau, Jian-Qi Shen, Jin-Jei Wu, Tzong-Jer Yang
  • Publication number: 20140016168
    Abstract: A random number generator includes a light source emitting light at a first frequency, an optical unit including an optical component configured to receive light at the first frequency and emit light at a second frequency, and a measurement unit configured to receive light at the second frequency, and generate a random output value related to a phase parameter of the light at the second frequency.
    Type: Application
    Filed: March 1, 2013
    Publication date: January 16, 2014
    Inventors: Alireza Marandi, Konstantin L. Vodopyanov, Robert L. Byer
  • Publication number: 20140002760
    Abstract: A monolithic or hybrid integrated optical information processor or optical information processing system having a plurality of non-quadratic phase optical elements, at least one LED array, and plurality of light modulating array elements, each controlled by respective control signals, the system arranged so that each light modulating array element lies in a different plane. In some implementations, at least a portion of the resulting system is implemented in a stack of component materials. In an implementation, an LED array is used as an image source and another LED array is used as an image sensor to transform the processed image into an electrical output.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Inventor: LESTER F. LUDWIG
  • Publication number: 20130301094
    Abstract: Embodiments of the present invention provide systems and methods to robustly inter-convert between polarization-entangled photon pairs and time-entangled photon pairs, such that produced polarization-entangled photons pairs can be converted into time-entangled photon pairs, stored as time-entangled photon pairs to preserve the entanglement for longer periods of time, and then converted back to polarization-entangled photon pairs when ready for manipulation, processing, and measurement by a quantum application.
    Type: Application
    Filed: April 3, 2013
    Publication date: November 14, 2013
    Applicant: The MITRE Corporation
    Inventors: Gerald N. GILBERT, Jonathan S. Hodges, Stephen Peter Pappas, Yaakov Shmuel Weinstein
  • Publication number: 20130286399
    Abstract: Optical computing devices are disclosed. One optical computing device includes an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element, the sample being configured to generate optically interacted radiation. A sampling window is arranged adjacent the sample and configured to allow transmission of the electromagnetic radiation therethrough and has one or more surfaces that generate one or more stray signals. A first focal lens is arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation. A structural element defines a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Inventors: Robert Freese, Christopher Michael Jones, David Perkins, Michael Simcock, William Soltmann
  • Publication number: 20130286398
    Abstract: Optical computing devices are disclosed. One optical computing device includes an electromagnetic radiation source that emits electromagnetic radiation into an optical train to optically interact with a sample and at least one integrated computational element, the sample being configured to generate optically interacted radiation. A sampling window is arranged adjacent the sample and configured to allow transmission of the electromagnetic radiation therethrough and has one or more surfaces that generate one or more stray signals. A first focal lens is arranged to receive the optically interacted radiation and the one or more stray signals and generate a primary focal point from the optically interacted radiation. A structural element defines a spatial aperture aligned with the primary focal point such that the optically interacted radiation is able to pass therethrough while transmission of the one or more stray signals is substantially blocked by the structural element.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Inventors: Robert Freese, Christopher Michael Jones, David Perkins, Michael Simcock, William Soltmann
  • Patent number: 8564867
    Abstract: Various embodiments of the present invention are directed to arbitration systems and methods. In one embodiment, an arbitration system comprises a loop-shaped arbitration waveguide (602), a loop-shaped hungry waveguide (603), and a loop-shaped broadcast waveguide (604). The arbitration, hungry, and broadcast waveguides optically coupled to a home node and a number of requesting nodes. The arbitration waveguide transmits tokens injected by the home node. A token extracted by a requesting node grants the node access to a resource for the duration or length of the token. The hungry waveguide transmits light injected by the home node. A requesting node in a hungry state extracts the light from the hungry waveguide. The broadcast waveguide transmits light injected by the home node such that the light indicates to requesting nodes not in the hungry state to stop extracting tokens from the arbitration waveguide.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: October 22, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Nathan Lorenzo Binkert, Robert Samuel Schreiber
  • Patent number: 8547617
    Abstract: A component comprising a qubit and a controller for said qubit, said component comprising a quantum dot and an excitation portion configured to produce a neutral exciton state in said quantum dot to form said qubit, the component further comprising a measuring unit to make an optical measurement relating to the orientation of said state, wherein said controller comprises voltage source coupled to electrical contacts configured to apply a modulated electric field across said quantum dot, wherein the modulation is faster than the decay time of said neutral exciton state.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: October 1, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Anthony John Bennett, Richard Mark Stevenson, Andrew James Shields
  • Patent number: 8542422
    Abstract: An optical flip-flop comprises first (102) and second (104) flip-flop elements arranged to respectively provide first (output 1) and second (output 3) optical outputs. Each output is in one of a plurality of states, wherein switching the output from a relatively high power state to a relatively low power state has an associated falling edge transition time, and switching the output from a relatively low power state to a relatively high power state has an associated rising edge transition time. The rising edge transition time is greater than the falling edge transition time.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: September 24, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gianluca Berrettini, Antonio Malacarne, Luca Poti, Antonella Bogoni
  • Patent number: 8536508
    Abstract: A system and method is provided for a source for a heralded single photon comprising a correlated photon-pair generator that provides bursts of multiple photon pairs that may be odd or even in number of pairs, one of each pair having a first but not a second characteristic and the other of each pair having the second but not the first characteristic; a first optical path for photons of pairs having the first characteristic; a second optical path for photons of pairs having the second characteristic; a two-photon absorber in the first optical path that, for each burst of photons, reduces the number of first characteristic photons in the first path to zero or one, depending on whether the number of photon pairs in the burst is even or odd; a photon detector in the second path having a heralding signal output to indicate when the number of photons in the burst is odd; and an optical switch coupled to the output of the second optical path and connected to operate in response to the heralding signal.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: September 17, 2013
    Assignee: TT Government Solutions, Inc.
    Inventors: Nicholas A. Peters, Thomas E. Chapuran
  • Publication number: 20130182303
    Abstract: Disclosed herein are atom phase-controlled double rephasing-based quantum memory and a double-rephased photon echo method therefor. The atom phase-controlled double rephasing-based quantum memory includes an optical medium and an optical pulse generation unit. The optical medium has three energy levels (|1>, |2> and |3>), receives one or more optical pulses from an optical pulse generation unit, and generates output light that satisfies phase matching conditions. The optical pulse generation unit generates at least five optical pulses that resonate among the energy levels of the optical medium.
    Type: Application
    Filed: May 8, 2012
    Publication date: July 18, 2013
    Applicant: INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventor: Byoung Seung HAM
  • Patent number: 8358455
    Abstract: Data integrity methods are disclosed for quantum computational plasmonic information representation and processing systems. Also disclosed are methods of saving energy in such applications. Also disclosed are methods of monitoring such applications.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: January 22, 2013
    Inventor: Jake Adam Todd
  • Patent number: 8345335
    Abstract: There is provided a new architecture for all-optical logic architecture. In this architecture the gate is partitioned into a linear front-end followed by a nonlinear back-end. The logic calculation is practically performed within the linear stage, easing the requirements placed on the non-linear part and thus reducing the gate complexity. The new structures provide flexibility and improved performance for the all-optical logic. The proposed scheme may be integrated optics/electronics. An important additional attribute of our all-optical logic family is reconfigurability, i.e. the ability of the hardware architecture or devices to rapidly alter the functionalities of its components and the interconnection between them as needed.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: January 1, 2013
    Assignee: Technion Research and Development Foundation Ltd.
    Inventors: Moshe Nazarathy, Amir Nevet
  • Patent number: 8331002
    Abstract: A passive all optical polarization switch and apparatus and methods for implementing logical operations using the switch is provided. The switch converts a first polarized beam having a polarization angle equals to or nearly equals to ±45 degrees into a beam equal to or nearly equal to the vertical component of the first polarized beam. The switch converts a second polarized beam having a polarization angle equals to or nearly equals to ±45 degrees into a beam equal to or nearly equal to the horizontal component of the second polarized beam. The switch combines the vertical component of the first polarized beam and the horizontal component of the second polarized beam to produce an output polarized beam. The switch is used to implement all optical polarization logic gates.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: December 11, 2012
    Inventors: Yasser A. Zaghloul, Arm Zaghloul
  • Patent number: 8294967
    Abstract: A system and method for the controlled generation, manipulation, and conversion of individual photons in and for a quantum computing environment or a quantum communication environment are provided. Systems and methods for doubling a single photon in a first propagation mode into two new photons in one or two new propagation modes, combining two photons in one or two propagation modes into a single photon of a single propagation mode, and implementing a pi phase shift on a two-photon state but not on the one-photon state in a fully controlled, consistent, and repeatable fashion are also provided, as well as a source of individual photons having clearly defined and fully controllable properties. Embodiments of the above allow for generation and conversion operations that are up to 100% efficient. The generation, conversion, combination, and phase shifting operations are preferably carried out inside a non-linear ?3 material of a predetermined length.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: October 23, 2012
    Assignee: University of Vienna
    Inventors: Nathan K. Langford, Sven Ramelow
  • Patent number: 8259376
    Abstract: A system, method, and apparatus for delayed optical logic gates based on slow light and enhanced nondegenerate four-wave mixing processes, where a single or multiple delayed optical routers are utilized for dark resonance interactions in which two-color lasers interact with a three-level nonlinear optical medium comprised of two ground states and one excited state through the nondegenerate four-wave mixing processes. The delayed optical logic mechanism is based on combination of single or multiple dark resonance-induced two-photon coherence conversion via slow light phenomenon. The two-photon coherence induced on the ground states is optically detected via nondegenerate four-wave mixing processes. The nondegenerate four-wave mixing generation is enhanced owing to dark resonance or electromagnetically induced transparency.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: September 4, 2012
    Assignee: Inha-Industry Partnership Institute
    Inventor: Byoung-Seung Ham
  • Patent number: 8223414
    Abstract: A quantum bit computation method includes operating a two-quantum-bit gate on quantum bits of a first physical system and a second physical system, second energy states of second physical systems except for the first physical system and the second physical system do not change, three energy states being represented by |0>, |1> and |3>, the two energy states being represented by |2> and |4>, energies of |2> and |4> being higher than energies of |0>, |1> and |3>, a transition frequency between |3> and |2> being equal to the resonance frequency, |0> and |1> representing quantum bits, flipping quantum bits of first physical systems after operating the two-quantum-bit gate, executing no operations by a time equal to a time for operating the two-quantum-bit gate, after flipping the quantum bits, and again flipping the quantum bits of the first physical systems after executing no operations.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 17, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hayato Goto, Kouichi Ichimura
  • Publication number: 20120170091
    Abstract: According to one embodiment, a quantum computer includes a crystal, an optical resonator, and a light source. A host crystal included in the crystal satisfying three conditions a first condition that maximum phonon energy of the host crystal is low, and so that a homogenous broadening of a 3F3(1) level of the Pr3+ ion resulting from relaxation due to phonon emission is smaller than respective hyperfine splits of a 3H4(1) level and the 3F3(1) level of the Pr3+ ion, a second condition that a site of the Pr3+ ion does not have inversion symmetry, and the Pr3+ ion has a Stark level in which the 3H4(1) level and the 3F3(1) level of the Pr3+ ion are not degenerate, and a third condition that each atom in the host crystal has no electronic magnetic moment.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 5, 2012
    Inventors: Hayato GOTO, Satoshi Mitsugi, Kouichi Ichimura