Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks
Quantum key distribution for 10 Gb/s dense wavelength division multiplexing networks
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DOI：
10.1063/1.4864398
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发表时间：
2014-02-03
影响因子：
4
通讯作者：
Shields, A. J.
中科院分区：
文献类型：
--
作者：
Patel, K. A.;Dynes, J. F.;Shields, A. J.
利用密集波分复用技术，在单根光纤中实现了双向10 Gb/S经典数据信道的量子密钥分配。创纪录的安全密钥速率达到2.38 Mbps，光纤距离达到70公里。同时监控数据通道以实现无差错操作。在数据激光器发射常规0 dBm功率的情况下，进一步证明了QKD的健壮性，在25公里上获得了445kbps的安全密钥速率。我们讨论了在多路传输环境中量子密钥分发性能的基本极限。(C)2014 AIP出版有限责任公司。
We demonstrate quantum key distribution (QKD) with bidirectional 10 Gb/s classical data channels in a single fiber using dense wavelength division multiplexing. Record secure key rates of 2.38 Mbps and fiber distances up to 70 km are achieved. Data channels are simultaneously monitored for error-free operation. The robustness of QKD is further demonstrated with a secure key rate of 445 kbps over 25 km, obtained in the presence of data lasers launching conventional 0 dBm power. We discuss the fundamental limit for the QKD performance in the multiplexing environment. (C) 2014 AIP Publishing LLC.