article Open AccessTop 1% cited

Field test of quantum key distribution in the Tokyo QKD Network

Optics Express · 2011 · Vol. 19(11) · pp. 10387–10387

M. Sasaki✉(National Institute of Information and Communications Technology)Mikio Fujiwara(National Institute of Information and Communications Technology)Hirokazu Ishizuka(National Institute of Information and Communications Technology)Werner Klaus(National Institute of Information and Communications Technology)Kentaro Wakui(National Institute of Information and Communications Technology)Masahiro Takeoka(National Institute of Information and Communications Technology)Shigehito Miki(National Institute of Information and Communications Technology)Taro Yamashita(National Institute of Information and Communications Technology)Zhixin Wang(National Institute of Information and Communications Technology)Akihiro Tanaka(NEC (Japan))K. Yoshino(NEC (Japan))Yasusada Nambu(NEC (Japan))Satoshi Takahashi(NEC (Japan))A. Tajima(NEC (Japan))Akihisa Tomita(Hokkaido University)T. Domeki(NEC (Japan))Tetsuya Hasegawa(Mitsubishi Electric (Japan))Yuichi Sakai(Mitsubishi Electric (Japan))Hiroshi Kobayashi(Mitsubishi Electric (Japan))Takashi Asai(Mitsubishi Electric (Japan))K. Shimizu(Mitsubishi Electric (Japan))T. Tokura(Mitsubishi Electric (Japan))Toyohiro Tsurumaru(Mitsubishi Electric (Japan))M. Matsui(Mitsubishi Electric (Japan))Toshimori Honjo(NTT Basic Research Laboratories)Kiyoshi Tamaki(NTT Basic Research Laboratories)Hiroki Takesue(NTT Basic Research Laboratories)Y. Tokura(NTT Basic Research Laboratories)J. F. Dynes(Toshiba (Japan))A. R. Dixon(Toshiba (Japan))A. W. Sharpe(Toshiba (Japan))Zhiliang Yuan(Toshiba (Japan))A. J. Shields(Toshiba (Japan))Shuichi Uchikoga(Toshiba (Japan))Matthieu Legré(ID Quantique (Switzerland))Samuel Robyr(ID Quantique (Switzerland))Patrick Trinkler(ID Quantique (Switzerland))Laurent Monat(ID Quantique (Switzerland))J.-B. Page(ID Quantique (Switzerland))G. Ribordy(ID Quantique (Switzerland))Andreas Poppe(Austrian Institute of Technology)A. Allacher(University of Vienna)Oliver Maurhart(Austrian Institute of Technology)Thomas Länger(Austrian Institute of Technology)Momtchil Peev(Austrian Institute of Technology)Anton Zeilinger(University of Vienna)

View via DOI Publisher page

Abstract

A secure communication network with quantum key distribution in a metropolitan area is reported. Six different QKD systems are integrated into a mesh-type network. GHz-clocked QKD links enable us to demonstrate the world-first secure TV conferencing over a distance of 45km. The network includes a commercial QKD product for long-term stable operation, and application interface to secure mobile phones. Detection of an eavesdropper, rerouting into a secure path, and key relay via trusted nodes are demonstrated in this network.

Quantum Information and Cryptography Quantum Computing Algorithms and Architecture Quantum optics and atomic interactionsQuantum key distributionComputer scienceComputer networkKey (lock)RelayQuantum cryptographyTelecommunicationsComputer securityOpticsQuantum