The relaxation time of a single-mode dye laser system driven by cross-correlated additive and multiplicative noises
The relaxation time of a single-mode dye laser system driven by cross-correlated additive and multiplicative noises
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DOI：
10.1016/j.physa.2005.02.049
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发表时间：
2005-08
影响因子：
3.3
通讯作者：
Yanfei Jin;W. Xu;W. Xie;Meng Xu
中科院分区：
文献类型：
--
作者：
Yanfei Jin;W. Xu;W. Xie;Meng Xu
本文研究了在互相关加性和乘性白色噪声驱动下单模染料激光系统中强度关联函数的弛豫时间Tc。用投影算子法得到了Tcis的表达式。研究了噪声间相关强度λ和噪声间相关时间τ对Tcare的影响。数值结果表明，当τ不为零时，关联强度λ加速了阈值以上激光强度涨落的衰减。同时，当λ>0时，τ抑制了激光的光强起伏。但当λ>0时，τ增大了激光的强度起伏。此外，λ和τ对光强起伏的影响还取决于噪声强度比R和净增益系数a0。
The relaxation time Tcof the intensity correlation function is investigated in a single-mode dye laser system driven by cross-correlated additive and multiplicative white noises. The expression for Tcis obtained by using the projector–operator method. And then the effects of correlation intensity between noises λ and correlation time between noises τ on Tcare studied. Numerical results show that the correlation intensity λ speeds up the intensity fluctuation decay of laser slightly above threshold in the presence of nonzero τ. Meanwhile, when λ>0, τ suppresses the intensity fluctuation of laser. But when λ>0, τ enhances the intensity fluctuation of laser. Moreover, the effects of λ and τ on the intensity fluctuation also depend on the noise intensity ratio R and net gain coefficient a0.