中国物理B ›› 2009, Vol. 18 ›› Issue (11): 4702-4706.doi: 10.1088/1674-1056/18/11/015

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Stokes identification in an atomic ensemble using a filtering system

钟志萍1, 周玥2, 罗霄鸣3, 宁波3, 陈丽清3, 蒋硕3   

  1. (1)College of Physical Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, China; (2)Physics Department, Nanjing University, Nanjing 210093, China; (3)Physics Department, Tsinghua University, Beijing 100084, China
  • 收稿日期:2009-05-20 修回日期:2009-05-26 出版日期:2009-11-20 发布日期:2009-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10474053 and 10574162) and Tsinghua University 985 (Grant No 051110001).

Stokes identification in an atomic ensemble using a filtering system

Luo Xiao-Ming(罗霄鸣)a)†,Ning Bo(宁波)a), Chen Li-Qing(陈丽清)a), Zhou Yue(周玥)b), Zhong Zhi-Ping(钟志萍)c), and Jiang Shuo(蒋硕)a)   

  1. a Physics Department, Tsinghua University, Beijing 100084, China; b Physics Department, Nanjing University, Nanjing 210093, China; c College of Physical Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2009-05-20 Revised:2009-05-26 Online:2009-11-20 Published:2009-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10474053 and 10574162) and Tsinghua University 985 (Grant No 051110001).

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摘要： Polarization filtering and atomic cell filtering are applied in the identification of Stokes signals in an atomic ensemble, and reduce the noise to a level of 10^ - 5 and 10^ - 4 respectively. Good Stokes signals are then obtained. In this article the two filtering systems and the final Stokes output are presented, and the optimization of the polarization filtering system is highlighted.

Abstract: Polarization filtering and atomic cell filtering are applied in the identification of Stokes signals in an atomic ensemble, and reduce the noise to a level of 10-5 and 10-4 respectively. Good Stokes signals are then obtained. In this article the two filtering systems and the final Stokes output are presented, and the optimization of the polarization filtering system is highlighted.

Key words: quantum communication, Stokes, filtering

中图分类号:  (Quantum communication)

  • 03.67.Hk
42.50.Ct (Quantum description of interaction of light and matter; related experiments) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)