适用于量子密钥分发的光纤中的有源偏振稳定

Active polarization stabilization in optical fibers suitable for quantum key distribution.

作者信息

Chen Jie, Wu Guang, Li Yao, Wu E, Zeng Heping

机构信息

State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, People's Republic of China.

出版信息

Opt Express. 2007 Dec 24;15(26):17928-36. doi: 10.1364/oe.15.017928.

DOI:10.1364/oe.15.017928

PMID:19551088

Abstract

Polarization feedback control of single-photon pulses has been achieved in long-distance fibers for more than 10 hours, which facilitated "one-way" polarization-encoded quantum key distribution with long-term stabilities. Experimental test of polarization encoding in 75 km fibers demonstrated that the single-photon polarization transformation in long-distance fibers could be controlled to provide a typical QBER of (3.9+/-1.5)% within a long-term operation of 620 minutes.

摘要

单光子脉冲的偏振反馈控制已在长距离光纤中实现超过10小时，这促进了具有长期稳定性的“单向”偏振编码量子密钥分发。在75公里光纤中进行的偏振编码实验测试表明，在620分钟的长期运行中，长距离光纤中的单光子偏振变换可被控制以提供典型的误码率为(3.9±1.5)%。