Plug and Play quantum key distribution system using differential phase shift

被引：0
|
作者：
Chen, XL [1 ]
Zhou, CY [1 ]
Wu, G [1 ]
Li, XH [1 ]
Zeng, HP [1 ]
机构：
[1] E China Normal Univ, Key Lab Opt & Magnet Resonance Spect, Shanghai 200062, Peoples R China
来源：
APOC 2003: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; OPTICAL TRANSMISSION, SWITCHING, AND SUBSYSTEMS | 2004年 / 5281卷
关键词：
QKD; Faraday mirror; phase modulator; quasi-single-photon; eavesdropping;
D O I：
10.1117/12.520250
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This report proposes a "Plug and Play" quantum key distribution system using differential phase shift, in which any birefringence effects and polarization-dependent losses in the telecom fiber are automatically compensated by using a Faraday mirror. In this system, a light pulse is split into three pulses after traveling through four couplers and a light intensity feedback servosystem is plugged into this system in order to adjust the phase shifter to compensate the variation of these three pulses. The efficiency of key creation in this system is 8/3 higher than the conventional cryptosystem based on the BB84 protocol.
引用
收藏
页码：741 / 746
页数：6
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