An advanced design of receiver for free space quantum key distribution system

Shuang Gao; Jianrong Wu; Feng Tang; Xiaofei Wang; Bing Zhu

doi:10.1117/12.882420

4 November 2010 An advanced design of receiver for free space quantum key distribution system

Shuang Gao, Jianrong Wu, Feng Tang, Xiaofei Wang, Bing Zhu

Proceedings Volume 7846, Quantum and Nonlinear Optics; 78461F (2010) https://doi.org/10.1117/12.882420
Event: Photonics Asia 2010, 2010, Beijing, China

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.

Citation Download Citation

Shuang Gao, Jianrong Wu, Feng Tang, Xiaofei Wang, and Bing Zhu "An advanced design of receiver for free space quantum key distribution system", Proc. SPIE 7846, Quantum and Nonlinear Optics, 78461F (4 November 2010); https://doi.org/10.1117/12.882420

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