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    Time-bin qubit converter
    1.
    发明授权
    Time-bin qubit converter 有权

    公开(公告)号：US12019354B2

    公开(公告)日：2024-06-25

    申请号：US18317025

    申请日：2023-05-12

    Applicant: PsiQuantum, Corp.

    Inventor： Mark G. Thompson ,  Gabriel Mendoza ,  Alain Shang

    IPC: G02F3/00 ,  G06N10/40

    CPC classification number: G02F3/00 ,  G06N10/40

    Abstract: A system includes a first photonic integrated circuit. The circuit includes a qubit encoder configured to receive a spatial-mode qubit and convert the spatial-mode qubit to a temporal-mode qubit and an optical interconnect configured to receive and transmit the temporal-mode qubit. The system further includes a second photonic integrated circuit, itself including a qubit decoder configured to receive the temporal-mode qubit and convert the temporal-mode qubit back into the spatial-mode qubit.

    OPTICAL LOGIC USING SEEDED EXCITON-POLARITON CONDENSATES
    2.
    发明公开
    OPTICAL LOGIC USING SEEDED EXCITON-POLARITON CONDENSATES 审中-公开

    公开(公告)号：US20240152027A1

    公开(公告)日：2024-05-09

    申请号：US18052219

    申请日：2022-11-03

    Applicant: International Business Machines Corporation

    Inventor： Darius Urbonas ,  Thilo Hermann Curt Stoeferle ,  Rainer F. Mahrt

    IPC: G02F3/00

    CPC classification number: G02F3/00 ,  G02F2201/06 ,  G02F2203/15

    Abstract: An optical gate device may have one or more optical cavities. The optical cavity may have an embedded optically-active material providing strong light-matter coupling. A pump input allows application to of a pulsed optical pump beam the optically-active material. The pump beam is absorbed by the optically active material to form an exciton-polariton condensate which emits light. The optical gate device may have an input waveguide to input a seed signal to the optical cavity. The optical gate device may include an output waveguide to output of an optical signal at a wavelength corresponding to a resonant mode of a the cavity. The device may operate in a manner such that, when the pump beam is applied to the pump input, an optical output signal is selectively provided in the output waveguide, via the input of the a seed signal and light emitted by the exciton-polariton condensate.

    ALL-PHOTONIC BOOLEAN LOGIC DEVICE BASED ON PHASE CHANGE STRAIGHT WAVEGUIDE AND FULL BINARY LOGIC IMPLEMENTATION METHOD THEREOF
    3.
    发明公开
    ALL-PHOTONIC BOOLEAN LOGIC DEVICE BASED ON PHASE CHANGE STRAIGHT WAVEGUIDE AND FULL BINARY LOGIC IMPLEMENTATION METHOD THEREOF 审中-公开

    公开(公告)号：US20230221619A1

    公开(公告)日：2023-07-13

    申请号：US17910835

    申请日：2021-07-22

    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Xiaomin CHENG ,  Zhuli HE ,  Yunlai ZHU ,  Han LI ,  Xiangshui MIAO

    IPC: G02F3/00

    CPC classification number: G02F3/00 ,  G02F2201/307 ,  G02F2203/50 ,  G02F2203/11

    Abstract: The disclosure provides a straight waveguide phase change all-photonic Boolean logic device and a full binary logic implementation method thereof, including a straight waveguide structure, a phase change functional unit covered on top of a waveguide and a protective layer thereof, and a waveguide Bragg grating structure. In terms of the logic implementation method, optical pulses are respectively input from two ends of the device to modulate the state of the phase change functional unit. The parameters of the waveguide Bragg grating structure are set to reflect the wavelength of the pump optical pulse, so that write pulses input from the two ends only act on the phase change functional unit closest to that end. A probe optical pulse with a specific wavelength is selected, and the probe light under the wavelength is less reflected by the waveguide Bragg grating and does not affect the reading of the state of the device. The disclosure has advantages such as anti-electromagnetic interference and parallel operation. Functions of 16 types of binary Boolean logic operation are implemented, which greatly improves the work efficiency of logic operation.

    PHOTONIC SIGNAL CONVERTER
    7.
    发明申请
    PHOTONIC SIGNAL CONVERTER 审中-公开

    公开(公告)号：US20180035090A1

    公开(公告)日：2018-02-01

    申请号：US15457967

    申请日：2017-03-13

    Applicant: Sutherland Cook Ellwood, JR.

    Inventor： Sutherland Cook Ellwood, JR.

    IPC: H04N9/67 ,  H04N9/76 ,  H04N9/31

    CPC classification number: H04N9/67 ,  G02F3/00 ,  H04N9/3179 ,  H04N9/76

    Abstract: Decomposition of components of an integrated photonic-signal “converter” into discrete signal processing stages. A basic logic “state” is separated from a color modulation stage which is separated from an intensity modulation stage. This may be thought of as a telecom signal-processing architecture applied to the problem of visible image photonic-signal modulation. For example, three signal-processing stages and three separate device components and operations are proposed. Although additional signal-influencing operations may be added and are contemplated, conversion from conventional signal to other forms such as polaritons, surface plasmons, and superposition of signal and the like are proposed.

    PHOTONIC CRYSTAL ALL-OPTICAL SELF-AND-TRANSFORMATION LOGIC GATE
    8.
    发明申请
    PHOTONIC CRYSTAL ALL-OPTICAL SELF-AND-TRANSFORMATION LOGIC GATE 审中-公开

    公开(公告)号：US20170293079A1

    公开(公告)日：2017-10-12

    申请号：US15626256

    申请日：2017-06-19

    Applicant: Zhengbiao Ouyang

    Inventor： Zhengbiao Ouyang ,  Quanqiang Yu

    IPC: G02B6/122 ,  G02F1/365 ,  G02B6/125

    CPC classification number: G02B6/1225 ,  B82Y20/00 ,  G02B6/125 ,  G02B2006/1213 ,  G02F1/365 ,  G02F3/00

    Abstract: The present invention discloses a PhC all-optical self-AND-transformation logic gate, which comprises an optical-switch unit, a PhC-structure unit, a NOT-logic gate and a D-type flip-flop unit; said clock-signal CP is connected with an input port of the two-branch waveguide, said two output ports of the two-branch waveguide are respectively connected with the input port of said NOT-logic gate and a first clock-signal-input port of said PhC-structure unit; the output port of said NOT-logic gate is connected with the second clock-signal-input port of said D-type flip-flop unit; the signal-output port of the PhC structure is connected with the D-signal-input port of said D-type flip-flop unit; a logic-signal X is connected with the logic-signal-input port of said PhC-structure unit. The structure of the present invention is compact in structure and ease of integration with other optical-logic elements.

    PHOTONIC CRYSTAL ALL-OPTICAL D-TYPE FLIP-FLOP
    9.
    发明申请
    PHOTONIC CRYSTAL ALL-OPTICAL D-TYPE FLIP-FLOP 审中-公开

    公开(公告)号：US20170285441A1

    公开(公告)日：2017-10-05

    申请号：US15626206

    申请日：2017-06-19

    Applicant: Zhengbiao Ouyang

    Inventor： Zhengbiao Ouyang ,  Quanqiang Yu

    IPC: G02F3/00 ,  G02F1/35 ,  G02F1/365

    CPC classification number: G02F3/00 ,  G02B6/1225 ,  G02B6/3544 ,  G02F1/3511 ,  G02F1/365 ,  G02F2201/06 ,  G02F2202/32

    Abstract: A photonic crystal all-optical D-type flip-flop includes an optical switch unit, a photonic crystal structure unit including two signal-input ends, a signal-output end and an idle port, a wave absorbing load and a reference-light source; the clock signal-input port of the photonic crystal structure unit is connected with a clock control signal; a second port of the photonic crystal structure unit is an intermediate signal-input port, said intermediate signal-input end of the photonic crystal structure unit is connected with a first intermediate signal-output end of the optical selector switch; a logic signal is connected with the first signal-input end of the optical switch unit; the absorbing load is connected with a second intermediate signal-output end of the optical switch unit; said reference-light source is connected with a second signal-input end of the optical switch unit, which is a reference-light input end connecting with the output end of said reference-light source.

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