全光纤分离调制连续变量量子密钥分发

J4 ›› 2011, Vol. 33 ›› Issue (10): 57-59.

全光纤分离调制连续变量量子密钥分发

王旭阳,白增亮,李永民,彭堃墀

（量子光学与光量子器件国家重点实验室山西大学光电研究所,山西太原 030006）

收稿日期:2011-05-15 修回日期:2011-07-20 出版日期:2011-10-25 发布日期:2011-10-25
基金资助:
国家自然科学基金资助项目（11074156）；山西省高等学校优秀青年学术带头人支持计划资助项目；山西省回国留学人员科研资助项目

All Fiber Discrete Modulation ContinuousVariable Quantum Key Distribution

WANG Xuyang,BAI Zengliang,LI Yongmin,PENG Kunchi

(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Optoelectronics,Shanxi University,Taiyuan 030006,China)

Received:2011-05-15 Revised:2011-07-20 Online:2011-10-25 Published:2011-10-25

摘要/Abstract

摘要：

本文给出了基于全光纤的分离调制连续变量量子密钥分发系统。首先介绍了四态分离调制方案及基于该方案的实验原理图；然后对关键器件时域脉冲平衡零拍探测器进行了介绍，并给出了性能测试结果；最后阐述了光脉冲信号的数据结构、编码规则和裸码的获取。

关键词: 全光纤, 分离调制, 连续变量, 量子密钥分发

Abstract:

In this paper, we give an all fiber discrete modulation continuousvariable quantum key distribution system. We introduce a quaternary discrete modulation protocol, and show the schematic of our experimental setup. The principle of the pulsed homodyne detector is analyzed and the test result about it is given. Finally we present the structure of pulses, the rules of encode, and the procedure to acquire a raw key.

Key words: ll fiber;discrete modulation;continuousvariable;quantum key distribution

王旭阳,白增亮,李永民,彭堃墀. 全光纤分离调制连续变量量子密钥分发[J]. J4, 2011, 33(10): 57-59.

WANG Xuyang,BAI Zengliang,LI Yongmin,PENG Kunchi. All Fiber Discrete Modulation ContinuousVariable Quantum Key Distribution[J]. J4, 2011, 33(10): 57-59.

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