SINGLE-PHOTON DETECTION APPARATUS AND METHOD

    公开(公告)号:US20220170786A1

    公开(公告)日:2022-06-02

    申请号:US17671636

    申请日:2022-02-15

    Abstract: This application provides a single-photon detection apparatus, including a phase-reversed reflection branch, a single-photon sensing device, and a phase-unreversed reflection branch, an input signal is divided into two input signals, and the two input signals respectively arrive at the phase-reversed reflection branch and the single-photon sensing device; the phase-reversed reflection branch is configured to perform phase-reversed reflection processing on a received input signal, to obtain a phase-reversed signal; the single-photon sensing device is configured to send a received input signal to the phase-unreversed reflection branch, and is further configured to: sense a photon, generate photon information, and output a first branch signal; the phase-unreversed reflection branch is configured to perform phase-unreversed reflection processing on the input signal that passes through the single-photon sensing device, to obtain a second branch signal; and the first branch signal is superimposed with the second branch signal, to obtain the photon information.

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