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
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 %.
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