中国物理B ›› 2011, Vol. 20 ›› Issue (11): 114206-114206.doi: 10.1088/1674-1056/20/11/114206

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Adjusting the properties of the photon generated via an optical parametric oscillator by using a pulse pumped laser

陈嵩, 史保森, 郭光灿   

  1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2011-03-30 修回日期:2011-06-02 出版日期:2011-11-15 发布日期:2011-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 10874171), the National Basic Research Program of China (Grant No. 2009CB929601), the Innovation Fund from Chinese Academy of Sciences, and the Program for New Century Excellent Talents in University of China (Grant No. NCET-07-0791).

Adjusting the properties of the photon generated via an optical parametric oscillator by using a pulse pumped laser

Chen Song(陈嵩), Shi Bao-Sen(史保森)†, and Guo Guang-Can(郭光灿)   

  1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
  • Received:2011-03-30 Revised:2011-06-02 Online:2011-11-15 Published:2011-11-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 10874171), the National Basic Research Program of China (Grant No. 2009CB929601), the Innovation Fund from Chinese Academy of Sciences, and the Program for New Century Excellent Talents in University of China (Grant No. NCET-07-0791).

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摘要： The cavity-enhanced spontaneous parametric down-conversion far below threshold can be used to generate a narrow-band photon pair efficiently. Previous experiments on the cavity-enhanced spontaneous parametric down-conversion almost always utilize continuous wave pump light, but the pulse pumped case is rarely reported. One disadvantage of the continuous wave case is that the photon pair is produced randomly within the coherence time of the pump, which limits its application in the quantum information realm. However, a pulse pump can help to solve this problem. In this paper, we theoretically analyze pulse pumped cavity-enhanced spontaneous parametric down-conversion in detail and show how the pump pulse affects the multi-photon interference visibility, two-photon waveform, joint spectrum and spectral brightness.

Abstract: The cavity-enhanced spontaneous parametric down-conversion far below threshold can be used to generate a narrow-band photon pair efficiently. Previous experiments on the cavity-enhanced spontaneous parametric down-conversion almost always utilize continuous wave pump light, but the pulse pumped case is rarely reported. One disadvantage of the continuous wave case is that the photon pair is produced randomly within the coherence time of the pump, which limits its application in the quantum information realm. However, a pulse pump can help to solve this problem. In this paper, we theoretically analyze pulse pumped cavity-enhanced spontaneous parametric down-conversion in detail and show how the pump pulse affects the multi-photon interference visibility, two-photon waveform, joint spectrum and spectral brightness.

Key words: spontaneous parametric down-conversion, photon, pulse pumped, quantum optics

中图分类号:  (Quantum state engineering and measurements)

  • 42.50.Dv
42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)