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Proceedings Paper

An advanced design of receiver for free space quantum key distribution system
Author(s): Shuang Gao; Jianrong Wu; Feng Tang; Xiaofei Wang; Bing Zhu
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Paper Abstract

We presented an advanced design of receiver in free space quantum key distribution (QKD) system based on BB84 protocol. In this system, a novel four polarization beam splitter is used in the receiver. It simplifies the receiver fabrication process, and the reflection loss is reduced too. Then we built the transmitter and the receiver for QKD system. The outdoor 200m free space QKD experiment was carried out, the bit error rate is 0.91% when the average photon number in each optical pulse was about 0.1. This result indicates that our design for the QKD system is feasible.

Paper Details

Date Published: 4 November 2010
PDF: 6 pages
Proc. SPIE 7846, Quantum and Nonlinear Optics, 78461F (4 November 2010); doi: 10.1117/12.882420
Show Author Affiliations
Shuang Gao, Univ. of Science and Technology of China (China)
Jianrong Wu, Univ. of Science and Technology of China (China)
Feng Tang, Univ. of Science and Technology of China (China)
Xiaofei Wang, Univ. of Science and Technology of China (China)
Bing Zhu, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7846:
Quantum and Nonlinear Optics
Qihuang Gong; Guang-Can Guo; Yuen-Ron Shen, Editor(s)

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