偏置调幅波调制噪声的单模激光随机共振

Stochastic resonance in a single-mode laser with modulated noise and biased amplitude modulation

采用偏置信号的调幅波调制抽运噪声的单模激光增益模型,用线性化近似方法计算了以e指数形式关联的两色噪声驱动下光强的功率谱及信噪比.结果表明,信噪比随着噪声强度的变化、抽运噪声自关联时间的变化、激光系统参数的变化、载波频率及信号频率的变化均存在随机共振现象.

Jin Guo-Xiang Cao Li Zhang Liang-Ying （ School of Computer Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, China; State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China Department ofPhysics, Xiangfan University, Xiangfan 441053, China）