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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 8 — Apr. 13, 2009
  • pp: 6540–6549

Field test of a practical secure communication network with decoy-state quantum cryptography

Teng-Yun Chen, Hao Liang, Yang Liu, Wen-Qi Cai, Lei Ju, Wei-Yue Liu, Jian Wang, Hao Yin, Kai Chen, Zeng-Bing Chen, Cheng-Zhi Peng, and Jian-Wei Pan  »View Author Affiliations

Optics Express, Vol. 17, Issue 8, pp. 6540-6549 (2009)

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We present a secure network communication system that operated with decoy-state quantum cryptography in a real-world application scenario. The full key exchange and application protocols were performed in real time among three nodes, in which two adjacent nodes were connected by approximate 20 km of commercial telecom optical fiber. The generated quantum keys were immediately employed and demonstrated for communication applications, including unbreakable real-time voice telephone between any two of the three communication nodes, or a broadcast from one node to the other two nodes by using one-time pad encryption.

© 2009 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(270.0270) Quantum optics : Quantum optics
(060.5565) Fiber optics and optical communications : Quantum communications

ToC Category:
Quantum Optics

Original Manuscript: October 9, 2008
Revised Manuscript: March 4, 2009
Manuscript Accepted: March 18, 2009
Published: April 6, 2009

Teng-Yun Chen, Hao Liang, Yang Liu, Wen-Qi Cai, Lei Ju, Wei-Yue Liu, Jian Wang, Hao Yin, Kai Chen, Zeng-Bing Chen, Cheng-Zhi Peng, and Jian-Wei Pan, "Field test of a practical secure communication network with decoy-state quantum cryptography," Opt. Express 17, 6540-6549 (2009)

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