Stationary Intensity Distribution of Single－Mode Laser Driven by Additive and Multiplicative Colored Noises with Colored Cross－Correlation  

作　　者：CAOLi WANGJun WuDa-Jin LIANGGui-Yun 

机构地区：[1]CCAST(WorldLaboratory),P.O.Box8730,Beijing100080,China [2]DepartmentofPhysics,HuazhongUniversityofScienceandTechnology,Wuhan430074,China [3]StateKeyLaboratoryofLaserTechnology,HuazhongUniversityofScienceandTechnology.Wuhan430074China

出　　处：《Communications in Theoretical Physics》2003年第1X期105-112,共8页理论物理通讯（英文版）

摘　　要：Applying the approximate Fokker-Planck equation we derived, we obtain the analytic expression of the stationary laser intensity distribution Pst(l) by studying the single-mode laser cubic model subject to colored cross-correlation additive and multiplicative noise, each of which is colored. Based on it, we discuss the effects on the stationary laser intensity distribution Pot(I) by cross-correlation between noises and "color" of noises (non-Markovian effect) when the laser system is above the threshold. In detail, we analyze two cases: One is that the three correlation-times (i.e.the self-correlation and cross-correlation times of the additive and multiplicative noise) are chosen to be the same value(Tl=T2=T3=T). For this case, the effect of noise cross-correlation is investigated emphatically, and we detect that only when λ≠ 0 can the noise-induced transition occur in the Pst (I) curve, and only when T≠ 0 and λ≠0, can the "reentrant noise-induced transition" occur. The other case is that the three correlation times are not the same value,T1≠T2≠T3. For this case, we find that the noise-induced transition occurring in the Pst(I) curve is entirely different when the values of T1,T2, and T3 are changed respectively. In particular, when T2 (serf-correlation time of additive noise) is cha^g~g, the ratio of the two maximums of the Pst( I) curve R exhibits an interesting phenomenon,"reentrant noise-induced transition", which demonstrates the effect of noise "color" (non-Markovian effect).

关 键 词：单模激光器 彩色交叉相关性 激光强度 干扰 

分 类 号：TN248[电子电信—物理电子学]