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实部虚部关联的泵噪声对激光统计性质的影响
Stationary properties in a single-mode laser withcross-correlation between pump noise terms
【摘要】 在增益模型的基础上,考虑平方色噪声,把泵噪声实部虚部间的关联强度λp引入光强的朗之万方程,分析λp作为一个新的重要参数对光强的定态几率分布Qst(I)的影响.发现λp在不同的参数下显著改变光强的定态几率分布曲线,并且得到一个新的现象,即当两个不同的关联强度值λp1和λp2满足方程λ2p1+λ2p2=1时,光强的定态几率分布曲线重合.同时研究了当关联λ存在时,其他参数对光强定态几率分布的影响.
【Abstract】 On the basis of a gain laser model, colored quadratic pump noise terms was considered and the cross-correlation coefficient λp between the real and imaginary parts of the pump noise was introduced to the laser intensity equation. The noise cross-correlation intensity λp, as a new important parameter, its effects on the behaviors of the stationary intensity distribution Q st(I) were discussed. It was seen that the cross-correlation coefficient λp influences the stationary intensity distribution markedly, when λp is changed, that is, if λp has two different value: λ p1 and λ p2, and they satisfy the formula λ2 p1+λ2 p2=1, the Q st(I)~I curves for λ p1 and λ p2 will overlap respectively. The effects of other parameters on the stationary intensity distribution were also analyzed, when cross-correlation λp existed.
【Key words】 single-mode laser; colored quadratic noise; pump noise; cross-correlation coefficient;
- 【文献出处】 华中科技大学学报(自然科学版) ,Journal of Huazhong University of Science and Technology(Nature Science Edition) , 编辑部邮箱 ,2006年04期
- 【分类号】TN245
- 【被引频次】2
- 【下载频次】76