Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

High-Speed Single-Photon Detection Using 2-GHz Sinusoidally Gated InGaAs/InP Avalanche Photodiode

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  • @INPROCEEDINGS{10.1007/978-3-642-11731-2_4,
        author={Naoto Namekata and Shunsuke Adachi and Shuichiro Inoue},
        title={High-Speed Single-Photon Detection Using 2-GHz Sinusoidally Gated InGaAs/InP Avalanche Photodiode},
        proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
        proceedings_a={QUANTUMCOMM},
        year={2012},
        month={10},
        keywords={Single-photon detector sinusoidal gate operation telecomm-band},
        doi={10.1007/978-3-642-11731-2_4}
    }
    
  • Naoto Namekata
    Shunsuke Adachi
    Shuichiro Inoue
    Year: 2012
    High-Speed Single-Photon Detection Using 2-GHz Sinusoidally Gated InGaAs/InP Avalanche Photodiode
    QUANTUMCOMM
    Springer
    DOI: 10.1007/978-3-642-11731-2_4
Naoto Namekata1,*, Shunsuke Adachi1, Shuichiro Inoue1
  • 1: Nihon University
*Contact email: nnao@phys.cst.nihon-u.ac.jp

Abstract

We report a telecom-band single-photon detector for high-speed quantum key distribution systems. The single-photon detector is based on a sinusoidally gated InGaAs/InP avalanche photodiode. The gate repetition frequency of the single-photon detector reached 2 GHz. A quantum efficiency of 10.5 % at 1550 nm was obtained with a dark count probability per gate of 6.1×10 and an afterpulsing probability of 3.4 %.