开放型量子保密通信系统架构及共纤传输技术研究与实验

量子保密通信因其具有理论上的无条件安全性，在国防、金融、政务、商业等领域的应用潜力巨大，同时也对通信网络提出了一定的要求。在研究量子保密通信的基础上，提出了开放型量子保密通信的系统架构；同时为了更好地与现有通信系统融合，提出了一种量子密钥分发（QKD）系统与大容量光通信系统共纤传输方案，并通过实验验证了QKD系统和80×100 Gbit/s DWDM系统共纤传输的可行性，在超过100 km共纤（G.654超低损光纤）传输条件下同时实现了QKD成码率超1 kbit/s和8 Tbit/s DWDM系统无误码传输。

Research and experiment of open quantum cryptography communication system architecture and co-fiber transmission technology

Based on the study of the mechanism of quantum encryption system,the system architecture of open quantum cryptographic communication was proposed.In order to better integrate with the existing communication system,a quantum key distribution (QKD) system and a large capacity optical communication co-fiber transmission scheme were proposed,and the QKD system and 80×100 Gbit/s DWDM were verified through experiments.The feasibility of the system common fiber transmission was realized under the condition of ultra 100 km common fiber transmission,the QKD bit rate >1.0 kbit/s and 8 Tbit/s DWDM system without error bit and the practical threshold of the commercial encryption device key rate>1.0 kbit/s was achieved.