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Conferences > CLEOPR > 2022 > CThA7E > CThA7E_03

20-GHz quantum key distribution using Mach-Zehnder intensity modulation and low jitter superconducting single photon detectors

Atsushi Taniguchi, Yasuyuki Sanari, Hirokazu Takahashi, Kazuaki Obana, Hideki Nishizawa, Koichi Takasugi, Hsin-Pin Lo, Takuya Ikuta, Toshimori Honjo, and Hiroki Takesue

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Abstract

We report the first 20-GHz clocked QKD using Mach-Zehnder intensity modulation and low jitter superconducting single photon detectors. A 41.8 kbps secure key rate was achieved with 23 dB channel loss by optical attenuation.

© 2022 IEEE

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