摘要：A relatively simple plug-and-play control system of quantum key distribution(QKD) based on PCI7300 card is demonstrated,including mechanism design,key generation and key *** system works very well at the repetition frequency of 1 MHz,and the key generation rate is 100 k/s.A visibility of better than 95% over 50 km-long fiber at 1.31 μm is obtained,which is stable under ordinary lab conditions for 24 h without any feedback control or *** presented system is a quite promising candidate to realize the QKD in the future.

摘要：为推进量子通讯平台的自动化,对量子密钥分发(QKD)层的软件部分进行了设计研究.基于实验操作,通过编写对初学者友好的可视界面将实验流程封装起来,降低了对使用者编程水平的要求.平台中的实验光路控制主要分为MFC, Labview及FPGA三部分.三者协同合作实现了集控制、扫描、判断于一身的相位自扫描.基于所设计光路及软件搭建了量子通讯过程自动化操作平台,并实验证明了扫描的稳定性.