Field and long-term demonstration of a wide area quantum key distribution network
| Autor: | Jun-Fu Guo, Wei Chen, Fang-Yi Li, Chun-Hua Miao, Mo Li, Chun-Mei Zhang, Ping Wu, Xiao-Tian Song, Zheng Zhou, Guang-Can Guo, Dong Wang, De-Yong He, Wen-Ye Liang, Zhen-Qiang Yin, Yun-Guang Han, Peng-Lei Hao, Zheng-Fu Han, Dong Liu, Hua Chen, Jing-Zheng Huang, Yu-Hu Li, Hong-Wei Li, Shuang Wang |
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| Rok vydání: | 2014 |
| Předmět: |
FOS: Computer and information sciences
Quantum Physics Computer Science - Cryptography and Security Access network Computer science business.industry FOS: Physical sciences Core network Quantum channel Quantum key distribution Metropolitan area Atomic and Molecular Physics and Optics Field (computer science) Optics Quantum cryptography Time-division multiplexing Quantum Physics (quant-ph) business Cryptography and Security (cs.CR) Physics - Optics Optics (physics.optics) Computer network |
| Zdroj: | Optics Express. 22:21739 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.22.021739 |
| Popis: | A wide area quantum key distribution (QKD) network deployed on communication infrastructures provided by China Mobile Ltd. is demonstrated. Three cities and two metropolitan area QKD networks were linked up to form the Hefei-Chaohu-Wuhu wide area QKD network with over 150 kilometers coverage area, in which Hefei metropolitan area QKD network was a typical full-mesh core network to offer all-to-all interconnections, and Wuhu metropolitan area QKD network was a representative quantum access network with point-to-multipoint configuration. The whole wide area QKD network ran for more than 5000 hours, from 21 December 2011 to 19 July 2012, and part of the network stopped until last December. To adapt to the complex and volatile field environment, the Faraday-Michelson QKD system with several stability measures was adopted when we designed QKD devices. Through standardized design of QKD devices, resolution of symmetry problem of QKD devices, and seamless switching in dynamic QKD network, we realized the effective integration between point-to-point QKD techniques and networking schemes. Comment: Ref.[65] is updated |
| Databáze: | OpenAIRE |
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