Field test of quantum key distribution in the Tokyo QKD Network

Field test of quantum key distribution in the Tokyo QKD Network

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 co...

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Veröffentlicht in:Optics express 2011-05, Vol.19 (11), p.10387-10409
Hauptverfasser: Sasaki, M, Fujiwara, M, Ishizuka, H, Klaus, W, Wakui, K, Takeoka, M, Miki, S, Yamashita, T, Wang, Z, Tanaka, A, Yoshino, K, Nambu, Y, Takahashi, S, Tajima, A, Tomita, A, Domeki, T, Hasegawa, T, Sakai, Y, Kobayashi, H, Asai, T, Shimizu, K, Tokura, T, Tsurumaru, T, Matsui, M, Honjo, T, Tamaki, K, Takesue, H, Tokura, Y, Dynes, J F, Dixon, A R, Sharpe, A W, Yuan, Z L, Shields, A J, Uchikoga, S, Legré, M, Robyr, S, Trinkler, P, Monat, L, Page, J-B, Ribordy, G, Poppe, A, Allacher, A, Maurhart, O, Länger, T, Peev, M, Zeilinger, A
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Sprache:eng
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Zusammenfassung: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.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.010387