Fluctuations of Single-Mode Laser Driven by Two Different Kinds of Colored Noise

作     者：WU Dan LUO Xiao-Qin ZHU Shi-Qun 

作者机构：School of Physical Science and Technology Suzhou University Suzhou 215006 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2006年第45卷第4期

页      面：630-636页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 10547130 and Natural Science Foundation of Jiangsu Province of China under Grant No. BK2001138 

主　　题：single-mode laser colored noise fluctuation coupling variance 

摘      要：A single-mode laser with coupling between additive and multiplicative noise terms is investigated when the multiplicative noise and the coupling between two noise terms are colored fluctuations with finite correlation times T1 and T2. Combining the unified colored noise approximation （UCNA） and the functional analysis, the stationary probability distribution （SPD） and the variance of the laser intensity is derived. It is found that the colored nature of multiplicative noise and the coupling strength between two noise terms can affect both the structure and the height of the SPD, while the colored nature of the coupling between two noise terms can only affect the height of the SPD. The multiplicative noise can enhance the intensity fluctuations while the additive noise can reduce the fluctuations in a laser system. Numerical simulations are presented and consistent to the analytical results.