Patents by Inventor Paul M. Alsing
Paul M. Alsing has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10551719Abstract: An electro-optical directional coupler is provided having a substrate and a first and second optical waveguide formed on the substrate, where the second waveguide extends adjacent to and parallel with the first waveguide for at least one interaction length. The interaction length has a first end and a second end such that an optical signal applied only to one of the first and second waveguides couples to the other of the first and second waveguides between the ends. A first electrode is proximate the first and second waveguides and between the ends of the interaction length. A first voltage applied to the first electrode independently tunes a coupling of a TE mode. A second electrode located proximate the first and second waveguides and the first electrode and between the ends of the interaction length. A second voltage applied to the second electrode independently tunes a coupling of a TM mode.Type: GrantFiled: February 13, 2017Date of Patent: February 4, 2020Assignee: United States of America as represented by the Secretary of the Air ForceInventors: Richard S Kim, Attila A Szep, Michael L Fanto, Paul M Alsing, Gordon E Lott, Christopher C Tison
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Patent number: 10466418Abstract: The invention provides an apparatus for optical integrated on-chip generation of photon pairs as a building block to create entangled photon states required for quantum information processing. The invention provided a frequency selective optical coupling device which controls the transmission of light by varying the relative dimensions of otherwise symmetrical linear optical waveguides tangential to an annular optical waveguide, thereby controlling the coupling of light between the linear optical waveguides and the annular optical waveguide. Dimensional change of the optical waveguides is achieved by a heated medium in proximity of the optical waveguides and under electronic control.Type: GrantFiled: December 6, 2017Date of Patent: November 5, 2019Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Michael L. Fanto, Paul M. Alsing, Christopher C. Tison, Stefan F. Preble, Jeffrey A. Steidle
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Publication number: 20190187380Abstract: Briefly stated, the invention provides an apparatus for quantum computing comprising optical integrated on-chip generation of photon pairs as building blocks to create entangled photon states which are detected as necessary for quantum information processing. The invention provided a frequency selective optical coupling device which controls the transmission of light by varying the relative dimensions of otherwise symmetrical linear optical waveguides tangential to an annular optical waveguide, thereby controlling the coupling of light between the linear optical waveguides and the annular optical waveguide. Dimensional change of the optical waveguides is achieved by a heated medium in proximity of the optical waveguides and under electronic control.Type: ApplicationFiled: February 20, 2019Publication date: June 20, 2019Inventors: MICHAEL L. FANTO, PAUL M. ALSING, CHRISTOPHER C. TISON, STEFAN F. PREBLE, JEFFREY A. STEIDLE
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Publication number: 20190146155Abstract: The invention provides an apparatus for optical integrated on-chip generation of photon pairs as a building block to create entangled photon states required for quantum information processing. The invention provided a frequency selective optical coupling device which controls the transmission of light by varying the relative dimensions of otherwise symmetrical linear optical waveguides tangential to an annular optical waveguide, thereby controlling the coupling of light between the linear optical waveguides and the annular optical waveguide. Dimensional change of the optical waveguides is achieved by a heated medium in proximity of the optical waveguides and under electronic control.Type: ApplicationFiled: December 6, 2017Publication date: May 16, 2019Inventors: MICHAEL L. FANTO, PAUL M. ALSING, CHRISTOPHER C. TISON, STEFAN F. PREBLE, JEFFREY A. STEIDLE
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Publication number: 20180335570Abstract: The invention provides an apparatus for optical integrated on-chip generation of photon pairs as a building block to create entangled photon states required for quantum information processing. The invention provided a frequency selective optical coupling device which controls the transmission of light by varying the relative dimensions of otherwise symmetrical linear optical waveguides tangential to an annular optical waveguide, thereby controlling the coupling of light between the linear optical waveguides and the annular optical waveguide. Dimensional change of the optical waveguides is achieved by a heated medium in proximity of the optical waveguides and under electronic control.Type: ApplicationFiled: November 15, 2017Publication date: November 22, 2018Inventors: MICHAEL L. FANTO, PAUL M. ALSING, CHRISTOPHER C. TISON, STEFAN F. PREBLE, JEFFREY A. STEIDLE
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Publication number: 20180196331Abstract: An electro-optical directional coupler is provided having a substrate and a first and second optical waveguide formed on the substrate, where the second waveguide extends adjacent to and parallel with the first waveguide for at least one interaction length. The interaction length has a first end and a second end such that an optical signal applied only to one of the first and second waveguides couples to the other of the first and second waveguides between the ends. A first electrode is proximate the first and second waveguides and between the ends of the interaction length. A first voltage applied to the first electrode independently tunes a coupling of a TE mode. A second electrode located proximate the first and second waveguides and the first electrode and between the ends of the interaction length. A second voltage applied to the second electrode independently tunes a coupling of a TM mode.Type: ApplicationFiled: February 13, 2017Publication date: July 12, 2018Inventors: Richard S. Kim, Attila A. Szep, Michael L. Fanto, Paul M. Alsing, Gordon E. Lott, Christopher C. Tison
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Patent number: 9047571Abstract: Encoding of quantum algorithm and devices therefrom are provided. The encoding includes receiving a unitary matrix operator representing the quantum algorithm, each row of the unitary matrix operator defining a superposition of basis state vectors for transforming input states to output states. The encoding also includes recording rows of the unitary matrix operator by applying, to a volume holographic element, a combination of an ith one of n reference waves and a superposition of n signal waves defined by the superposition defined in an ith row of the unitary matrix operator. The n signal waves are a first set of n plane waves lying on a first conical surface having a first half angle and the n reference waves are a second set of n plane waves lying on a second conical surface, concentric with the first conical surface, with a second half angle different that the first half angle.Type: GrantFiled: April 20, 2012Date of Patent: June 2, 2015Assignee: FLORIDA ATLANTIC UNIVERSITYInventors: Warner A. Miller, Grigoriy Kreymerman, Paul M. Alsing
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Patent number: 8995797Abstract: A Periodic Cluster State Generator (PCSG) consisting of a monolithic integrated waveguide device that employs four wave mixing, an array of probabilistic Photon Guns, single mode Sequential Entanglers and an array of controllable entangling gates between modes to create arbitrary size and shape cluster states with several constraints. The cluster state is assumed linear or square lattice. Only nearest neighbor qubits are entangled. Such a cluster state resource has been proven to be able to perform universal quantum computing if the initial state is large enough.Type: GrantFiled: October 23, 2013Date of Patent: March 31, 2015Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Amos Matthew Smith, Michael L Fanto, Paul M. Alsing, Gordon Lott
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Publication number: 20150036967Abstract: A Periodic Cluster State Generator (PCSG) consisting of a monolithic integrated waveguide device that employs four wave mixing, an array of probabilistic Photon Guns, single mode Sequential Entanglers and an array of controllable entangling gates between modes to create arbitrary size and shape cluster states with several constraints. The cluster state is assumed linear or square lattice. Only nearest neighbor qubits are entangled. Such a cluster state resource has been proven to be able to perform universal quantum computing if the initial state is large enough.Type: ApplicationFiled: October 23, 2013Publication date: February 5, 2015Inventors: AMOS Matthew SMITH, MICHAEL L FANTO, Paul M. Alsing, Gordon Lott
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Publication number: 20140192388Abstract: Encoding of quantum algorithm and devices therefrom are provided. The encoding includes receiving a unitary matrix operator representing the quantum algorithm, each row of the unitary matrix operator defining a superposition of basis state vectors for transforming input states to output states. The encoding also includes recording rows of the unitary matrix operator by applying, to a volume holographic element, a combination of an ith one of n reference waves and a superposition of n signal waves defined by the superposition defined in an ith row of the unitary matrix operator. The n signal waves are a first set of n plane waves lying on a first conical surface having a first half angle and the n reference waves are a second set of n plane waves lying on a second conical surface, concentric with the first conical surface, with a second half angle different that the first half angle.Type: ApplicationFiled: April 20, 2012Publication date: July 10, 2014Applicant: Florida Atlantic UniversityInventors: Warner A. Miller, Grigoriy Kreymerman, Paul M. Alsing