Measurement scheme and standardization progress of SPD component in commercial QKD system

Junsen Lai; Wenyu Zhao; Haiyi Zhang

doi:10.1117/12.2619992

27 March 2022 Measurement scheme and standardization progress of SPD component in commercial QKD system

Junsen Lai, Wenyu Zhao, Haiyi Zhang

Proceedings Volume 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications; 121690M (2022) https://doi.org/10.1117/12.2619992
Event: Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 2021, Kunming, China

Abstract

Quantum key distribution (QKD) has advantage to provide information-theoretical security key sharing based on the fundamental laws of quantum physics. Single photon detectors (SPD) are crucial components of discrete variable (DV) QKD system, which influence the key generation rate, transmission distance, and even security of the system. For multivendor commercialized DV-QKD system, the characteristic and performance of SPDs are also the focus of measurement and standardization. In this paper, the single photon detection technology in QKD system is briefly reviewed, the measurement schemes of avalanche photodiode (APD) based SPD components in commercial DV-QKD system are proposed and analyzed, and the recent standardization progress of SPD component in China Communications Standards Association (CCSA) are discussed.

Citation Download Citation

Junsen Lai, Wenyu Zhao, and Haiyi Zhang "Measurement scheme and standardization progress of SPD component in commercial QKD system", Proc. SPIE 12169, Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, 121690M (27 March 2022); https://doi.org/10.1117/12.2619992

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