中国物理B ›› 2003, Vol. 12 ›› Issue (1): 33-38.doi: 10.1088/1009-1963/12/1/306

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New amplitude equation of single-mode laser

吴大进1, 张 莉2, 曹 力2   

  1. (1)Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China; (2)State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2002-05-27 修回日期:2002-07-15 出版日期:2003-01-20 发布日期:2003-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10275025)

New amplitude equation of single-mode laser

Zhang Li (张 莉)ab, Cao Li (曹 力)ac, Wu Da-Jin (吴大进)c    

  1. a Department of Physics, Huazhong University of Science and Technology, Wuhan 430074, China; b Hubei Automobile Industry Institute, Shiyan 442002, China; c State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2002-05-27 Revised:2002-07-15 Online:2003-01-20 Published:2003-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10275025)

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摘要： The white-gain model and the white-loss model of a single-mode laser are investigated in the presence of cross-correlations between the real and imaginary parts of quantum noise as well as pump noise. It was found that, like the white cubic model (2001 Chin. Phys. Lett. 18 370), the amplitude equations are all decoupled from the phase equations for the two models, and the same novel term appears in the amplitude equations of the two models. So we can put the amplitude equations of all the models into a general form, that is, the new amplitude equation. We further use this new amplitude equation to study specifically the stationary properties of the laser intensity for the white-gain model.

Abstract: The white-gain model and the white-loss model of a single-mode laser are investigated in the presence of cross-correlations between the real and imaginary parts of quantum noise as well as pump noise. It was found that, like the white cubic model (2001 Chin. Phys. Lett. 18 370), the amplitude equations are all decoupled from the phase equations for the two models, and the same novel term appears in the amplitude equations of the two models. So we can put the amplitude equations of all the models into a general form, that is, the new amplitude equation. We further use this new amplitude equation to study specifically the stationary properties of the laser intensity for the white-gain model.

Key words: single-mode laser, phase lock, new equation of amplitude, white-gain model

中图分类号:  (Quantum fluctuations, quantum noise, and quantum jumps)

  • 42.50.Lc
42.60.Fc (Modulation, tuning, and mode locking) 05.40.Ca (Noise) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.60.Mi (Dynamical laser instabilities; noisy laser behavior)