Practical non-Poissonian light source for passive decoy state quantum key distribution
Yang Zhang, Wei Chen, Shuang Wang, Zhen−Qiang Yin, Fang-Xing Xu, Xiaowei Wu, Chun‐Hua Dong, Hong-Wei Li, Guang‐Can Guo, Zheng‐Fu Han · Optics Letters · 2010
Passive decoy state quantum key distribution (QKD) has enormous potential in high-speed applications. In this Letter, an intrinsic-stable non-Poissonian light source was implemented with Faraday mirrors and could be a crucial element in realizing passive decoy state QKD. The stable g((2))(0) was obtained through a Hanbury Brown-Twiss experiment, and the results fit well with the theoretical value according to Curty et al.'s theory [Opt. Lett.34, 3238 (2009)].