Effects of colored noise on the intensity and phase in a laser system

A two-dimensional decoupling theory is developed when colored noise is included in a nonlinear dynamical system. By a functional analysis, the colored noise is transformed to an effective noise that includes the noise correlation time, the mean dynamical variable, and the original noise strength. Wh...

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Bibliographic Details
Published in:Physics letters. A 2001-08, Vol.287 (1), p.111-119
Main Authors: Luo, Xiaoqin, Zhu, Shiqun, Chen, Xianfeng
Format: Article
Language:English
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Summary:A two-dimensional decoupling theory is developed when colored noise is included in a nonlinear dynamical system. By a functional analysis, the colored noise is transformed to an effective noise that includes the noise correlation time, the mean dynamical variable, and the original noise strength. When the two-dimensional decoupling theory is applied to single-mode dye laser system, the mean, variance, and effective eigenvalue of laser intensity are calculated. It is seen that the increase of noise correlation time can reduce the fluctuations in the laser system. It is also shown that there is relatively large fluctuation in the phase when the laser undergoes from thermal light to coherent light.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(01)00443-1