Stochastic resonance with frequency noise in a linear model of single-mode laser

被引：7
|
作者：
Zhang Liang-Ying [1 ]
Jin Guo-Xiang [2 ]
Cao Li [3 ]
机构：
[1] Xiangfan Univ, Sch Phys & Elect Engn, Xiangfan 441053, Peoples R China
[2] Wuhan Inst Technol, Hubei Prov Key Lab Intelligent Robot, Wuhan 430073, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
来源：
ACTA PHYSICA SINICA | 2011年 / 60卷 / 04期
基金：
中国国家自然科学基金;
关键词：
frequency noise; power spectrum; stochastic resonance; TIME PERIOD MODULATION; BISTABLE SYSTEM; CORRELATION INTENSITY; DRIVEN; SIGNAL;
D O I：
10.7498/aps.60.044207
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
By adding a periodic signal of the fluctuating frequency to the gain-noise model of the single-mode lasers, we calculate the correlated function and power spectrum of the output laser intensity and discuss the variation of signal-to-noise ratio( SNR) with the intensity of the noise and system parameter. The result indicates that the SNR shows stochastic resonances with the variations of intensities of the frequency noise, pump noise and quantum noise, also with the variations of gain coefficient and loss coefficient.
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页数：5
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