Correlation Function and Time-Dependent Moments of the Intensity for Gain-Noise Model of a Single-Mode Laser with Exponential Function Correlation Noise

1998 ◽  
Vol 15 (7) ◽  
pp. 498-500 ◽  
Author(s):  
Zhong-long Wang ◽  
Li Cao ◽  
Jun-lin Qiu
2019 ◽  
Vol 1325 ◽  
pp. 012177
Author(s):  
Qing Ye ◽  
Jingyan Li ◽  
Jiakun Xu ◽  
Xiuhua Qing

2009 ◽  
Vol 23 (02) ◽  
pp. 155-161
Author(s):  
G. H. ZHAO ◽  
Y. L. XIANG ◽  
D. C. MEI

The effects of the correlations between real and imaginary parts of the quadratic pump noise on the normalized intensity correlation function and the associated relaxation time of a single-mode laser model were investigated. The expressions of the intensity correlation function C(s) and the relaxation time Tc were derived. Based on numerical computations, we found that Tc monotonously increases as the strength λp of correlation between the real and imaginary parts of quadratic pump noise increases and the larger λp value is, the slower C(s) decays. The presence of correlations between the real and imaginary parts of the quadratic pump noise causes the intensity fluctuation to increase.


2009 ◽  
Vol 23 (22) ◽  
pp. 4665-4674
Author(s):  
DE-SHENG XU ◽  
LI CAO ◽  
DA-JIN WU

Based on the single-mode laser noise model driven by quadratic colored pump noise and quantum noise with cross-correlation between real and imaginary parts of noise proposed in International Journal of Modern Physics B20, 5383 (2006) and Phys. Rev. E 73, 023802 (2006), the stochastic resonance (SR) of laser intensity is investigated by virtue of the linearized approximation. The analytic expression of signal-to-noise ratio (SNR) is calculated. It is found that the phenomena of stochastic resonance respectively exist in the curves of the SNR versus the noise cross-correlation coefficient λp and the SNR versus the pump parameter a, as well as the SNR versus the signal frequency [Formula: see text] for the model. It is shown that there are three different types of SR in the model: the conventional form of SR, the SR in the broad sense and the bona fide SR.


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