Intrinsically stable phase-modulated polarization encoding system for quantum key distribution

被引：12
作者：
Liu, Xiaobao [1 ]
Liao, Changjun [1 ]
Mi, Jinglong [1 ]
Wang, Jindong [1 ]
Liu, Songhao [1 ]
机构：
[1] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Lab Photon Informat Technol, Guangzhou 510006, Guangdong, Peoples R China
来源：
PHYSICS LETTERS A | 2008年 / 373卷 / 01期
关键词：
Sagnac interferometer; Polarizing interference; Phase modulation; Polarization encoding; Quantum key distribution;
D O I：
10.1016/j.physleta.2008.10.081
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate experimentally an intrinsically stable polarization coding and decoding system composed of optical-fiber Sagnac interferometers with integrated phase modulators for quantum key distribution. An interference visibility of 98.35% can be kept longtime during the experiment without any efforts of active compensation for coding all four desired polarization states. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：54 / 57
页数：4
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