TENSORIZED INTEGRATED COHERENT ISING MACHINE

    公开(公告)号:US20240402572A1

    公开(公告)日:2024-12-05

    申请号:US18328555

    申请日:2023-06-02

    Abstract: Examples of the present technology provide “tensorized” integrated coherent Ising machines that improve scalability by leveraging a tensorized optical coupling matrix comprising layers of multi-wavelength photonic tensor-train (TT) cores cascaded together via passive optical cross-connects. A multi-wavelength photonic TT core may comprise a Mach Zehnder interferometer (MZI) mesh (i.e., a lattice/array of interconnected MZIs) that modulates the phase and/or amplitude of optical signals. Tensorized integrated CIMs of the present technology can achieve further scalability optimizations by implementing bistable Ising nodes via one or more multi-wavelength Ising node collections. A multi-wavelength Ising node collection may comprise a bistable Ising nodes implemented on a common MZI, where each bistable Ising node of the multi-wavelength Ising node collection is associated with a separate wavelength of light.

    Parity time symmetric directional couplers with phase tuning

    公开(公告)号:US11953766B2

    公开(公告)日:2024-04-09

    申请号:US17843352

    申请日:2022-06-17

    CPC classification number: G02F1/01708

    Abstract: Implementations disclosed herein provide for devices and methods for obtaining parity time (PT) symmetric directional couplers through improved phase tuning, along with separate optical gain and optical loss tuning. The present disclosure integrates phase tuning and optical gain/loss tuning structures into waveguides of directional couplers disclosed herein. In some examples, directional couplers disclosed herein integrate one or more hybrid metal-oxide-semiconductor capacitors (MOSCAPs) formed by a dielectric layer between two semiconductor layers that provide for phase tuning via plasma dispersion and/or carrier accumulation depending on voltage bias polarity, and one or more optically active medium that provide for optical gain or loss tuning depending on voltage bias polarity.

    LASER ASSEMBLY PACKAGING FOR SILICON PHOTONIC INTERCONNECTS

    公开(公告)号:US20200003971A1

    公开(公告)日:2020-01-02

    申请号:US16023596

    申请日:2018-06-29

    Abstract: Processes and apparatuses described herein reduce the manufacturing time, the cost of parts, and the cost of assembly per laser for photonic interconnects incorporated into computing systems. An output side of a laser assembly is placed against an input side of a silicon interposer (SiP) such that each pad in a plurality of pads positioned on the output side of the laser assembly is in contact with a respective solder bump that is also in contact with a corresponding pad positioned on the input side of the SiP. The laser assembly is configured to emit laser light from the output side into an input grating of the SiP. The solder bumps are heated to a liquid phase. Capillary forces of the solder bumps realign the laser assembly and the SiP while the solder bumps are in the liquid phase. The solder bumps are then allowed to cool.

    OPTICAL LOGIC GATES
    6.
    发明申请
    OPTICAL LOGIC GATES 审中-公开

    公开(公告)号:US20190353981A1

    公开(公告)日:2019-11-21

    申请号:US16526973

    申请日:2019-07-30

    Abstract: In the examples provided herein, an optical logic gate includes multiple couplers, where no more than two types of couplers are used in the optical logic gate, and further wherein the two types of couplers consist of: a 3-dB coupler and a weak coupler with a given transmission-to-reflection ratio. The optical logic gate also includes a first resonator, wherein the first resonator comprises a photonic crystal resonator or a nonlinear ring resonator, wherein in operation, the first resonator has a dedicated continuous wave input to bias a complex amplitude of a total field input to the first resonator such that the total field input is either above or below a nonlinear switching threshold of the first resonator, where the optical logic gate is an integrated photonic circuit.

    VASCULAR PATTERN DETECTION SYSTEMS
    10.
    发明申请

    公开(公告)号:US20190005301A1

    公开(公告)日:2019-01-03

    申请号:US16109716

    申请日:2018-08-22

    Abstract: In the examples provided herein, a vascular pattern recognition system integrated onto a portable card includes a vascular pattern detection system to obtain image data of blood vessels of a finger to be swiped across a detection area on the portable card, wherein the vascular pattern detection system includes a near infrared light source and an image sensor array. The vascular pattern recognition system also includes an image processor to process the image data to generate a scanned vascular pattern and compare the scanned vascular pattern to a pre-stored pattern stored on the portable card to authenticate the image data, and a security processor to generate a transaction code to authorize a transaction upon authentication of the image data.

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