中国物理B ›› 2001, Vol. 10 ›› Issue (11): 1011-1016.doi: 10.1088/1009-1963/10/11/304

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EFFECTS OF COLOURED NOISE IN A TWO-MODE LASER SYSTEM

罗晓琴, 朱士群, 高伟建   

  1. Department of Physics, College of Sciences, Suzhou University, Suzhou 215006, China
  • 收稿日期:2001-03-23 修回日期:2001-06-29 出版日期:2001-11-15 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 19874046).

EFFECTS OF COLOURED NOISE IN A TWO-MODE LASER SYSTEM

Luo Xiao-qin (罗晓琴), Zhu Shi-qun (朱士群), Gao Wei-jian (高伟建)   

  1. Department of Physics, College of Sciences, Suzhou University, Suzhou 215006, China
  • Received:2001-03-23 Revised:2001-06-29 Online:2001-11-15 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19874046).

摘要: A homogeneously broadened two-mode laser system with multiplicative coloured noise is investigated when the mode coupling constant ξ=2. An analytical result is obtained when two-dimensional decoupling theory is applied to the system. The intensity auto-correlation function and effective eigenvalue of the laser system are calculated when the difference of pump parameters, multiplicative noise strength and noise correlation time are varied. It is shown that the multiplicative noise can enhance the fluctuations while the noise colour can reduce the fluctuations in the laser system.

Abstract: A homogeneously broadened two-mode laser system with multiplicative coloured noise is investigated when the mode coupling constant $\xi=2$. An analytical result is obtained when two-dimensional decoupling theory is applied to the system. The intensity auto-correlation function and effective eigenvalue of the laser system are calculated when the difference of pump parameters, multiplicative noise strength and noise correlation time are varied. It is shown that the multiplicative noise can enhance the fluctuations while the noise colour can reduce the fluctuations in the laser system.

Key words: coloured noise, two-mode laser, decoupling theory, mode coupling constant

中图分类号:  (Dynamical laser instabilities; noisy laser behavior)

  • 42.60.Mi
05.40.Ca (Noise) 02.10.Ud (Linear algebra)