%0 Journal Article
%T A quantum key distribution system based on two polarization beam splitters<br>基于双偏振分束器的量子密钥分发系统
%A Ma Hai-Qiang
%A Li Ya-Ling
%A Zhao Huan
%A Wu Ling-An
%A <br>马海强
%A 李亚玲
%A 赵 环
%A 吴令安
%J 物理学报
%D 2005
%I 
%X We present a quantum key distribution system based on two polarization beam splitters, by means of which the phase modulator's polarization dependence is cancelled out. A high key generation rate has been obtained for the first time at 1310nm transmitted over a 25 km long fiber, with a fringe visibility of 99.4%. A sifted key rate of about 0.6 kbits/s and quantum bit error rate of about 0.5% are obtained.
%K quantum key distribution
%K polarization beam splitter
%K single photon interference<br>量子密钥分发，
%K 偏振分束器
%K 单光子干涉
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=E11D67F13E4C1881&yid=2DD7160C83D0ACED&vid=318E4CC20AED4940&iid=708DD6B15D2464E8&sid=EB50883748B6C8AC&eid=3CDE102F5FD1CC56&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=20