Quantum key distribution system in standard telecommunications fiber using a short wavelength single photon source
Quantum key distribution system in standard telecommunications fiber using a short wavelength single photon source
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DOI：
10.1063/1.3327427
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发表时间：
2010-04-01
影响因子：
3.2
通讯作者：
Buller, G. S.
中科院分区：
文献类型：
--
作者：
Collins, R. J.;Clarke, P. J.;Buller, G. S.
量子密钥分配（QKD）原理的演示是使用单光子源在标准电信光纤中2公里距离的概念验证试验台中进行的。单光子源是微腔中的光泵浦量子点，发射波长为895 nm。在不同的光激发功率范围内进行QKD参数的表征。研究了改变量子点微腔的光激发功率对系统量子比特误码率和密钥交换率的影响。c 2010年美国物理学会。[doi 10.1063/1.3327427]
A demonstration of the principles of quantum key distribution (QKD) is performed using a single-photon source in a proof of concept test-bed over a distance of 2 km in standard telecommunications optical fiber. The single-photon source was an optically-pumped quantum dot in a microcavity emitting at a wavelength of 895 nm. Characterization of the QKD parameters was performed at a range of different optical excitation powers. An investigation of the effect of varying the optical excitation power of the quantum dot microcavity on the quantum bit error rate and cryptographic key exchange rate of the system are presented. c 2010 American Institute of Physics. [doi: 10.1063/1.3327427]