Abstract
A hierarchical metropolitan quantum cryptography network upon the inner-city commercial telecom fiber cables is reported in this paper. The techniques of the quantum router, optical switch and trusted relay are assembled here to divide the seven-user network into a four-node backbone net, a two-user subnet and a single-fiber access link. Secure keys distributed in this network can be utilized to encrypt the instant video, sound, text messages and confidential files transmitting between nodes. The whole implementation including the hierarchical quantum cryptographic communication links and the corresponding application software shows a big step toward the practical user-oriented network with a high security level.
© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia
PDF ArticleMore Like This
Paul D. Townsend
FI4 Optical Fiber Communication Conference (OFC) 1999
Georgios Zervas, Reza Nejabati, Zhuoran Wang, Dimitra Simeonidou, Siyuan Yu, and Mike O’Mahony
OWC2 Optical Fiber Communication Conference (OFC) 2007
Xu Liu, Rong Xue, Yidong Huang, and Wei Zhang
F4E.4 Optical Fiber Communication Conference (OFC) 2021