scholarly journals Stochastic resonance for pulse signal modulated by noise in a single-mode laser system

2012 ◽  
Vol 61 (11) ◽  
pp. 110501
Author(s):  
Zhang Li ◽  
Yuan Xiu-Hua ◽  
Wu Li
Keyword(s):  
Stochastic Resonance ◽  
Laser System ◽  
Pulse Signal ◽  
Single Mode ◽  
Mode Laser ◽  
Single Mode Laser

EFFECT OF PERIODICALLY MODULATED NOISE ON STOCHASTIC RESONANCE IN LASER SYSTEM

2013 ◽  
Vol 27 (19) ◽  
pp. 1350101 ◽  
Author(s):  
LI ZHANG ◽  
XIU-HUA YUAN
Keyword(s):  
Stochastic Resonance ◽  
Signal To Noise Ratio ◽  
Laser System ◽  
Single Mode ◽  
Signal To Noise ◽  
Mode Laser ◽  
Single Mode Laser ◽  
Laser Model ◽  
Signal Period ◽  
Output Snr

The output power and the signal-to-noise ratio (SNR) of a single-mode laser system are calculated in the case of the laser model with periodically modulated noise. The corresponding stochastic resonance (SR) phenomena are discussed and compared with the case without periodically modulated noise. It is shown that the main difference between the two noise laser models exists in the SNR as a function of signal period. There appears resonance and suppression coexisting phenomenon for the model with periodically modulated noise, which can be utilized to restrain or optimize the output SNR of the system. Whereas, SR is absent for the model without periodically modulated noise, and the SNR just increases monotonously with signal period.

Stochastic Resonance in a Single-Mode Laser System with an Input Pulse Signal

2013 ◽  
Vol 552 ◽  
pp. 377-383
Author(s):  
Li Zhang ◽  
Xiu Hua Yuan
Keyword(s):  
Stochastic Resonance ◽  
Quantum Noise ◽  
Signal To Noise Ratio ◽  
Laser System ◽  
Input Pulse ◽  
Pulse Signal ◽  
Single Mode ◽  
Single Mode Laser ◽  
Correlation Strength ◽  
Output Snr

In this paper, we investigated the stochastic resonance (SR) phenomenon in a laser system with correlated pump noise and quantum noise. The signal-to-noise ratio (SNR) is calculated when a square sine pulse signal is added to the system. The effects of the duty cycle of pulse signal and the correlation strength of noises on the SNR are discussed. Some valuable phenomena are investigated to improve the output SNR of laser.

scholarly journals Simulation study on the stochastic resonance of single-mode laser system

2012 ◽  
Vol 61 (16) ◽  
pp. 160502
Author(s):  
Yang Ming ◽  
Li Xiang-Lian ◽  
Wu Da-Jin
Keyword(s):  
Stochastic Resonance ◽  
Simulation Study ◽  
Laser System ◽  
Single Mode ◽  
Mode Laser ◽  
Single Mode Laser

scholarly journals Stochastic resonance of amplitude modulated wave in a linear model of single-mode laser

2006 ◽  
Vol 55 (12) ◽  
pp. 6238
Author(s):  
Zhang Liang-Ying ◽  
Cao Li ◽  
Jin Guo-Xiang
Keyword(s):  
Linear Model ◽  
Stochastic Resonance ◽  
Single Mode ◽  
Mode Laser ◽  
Single Mode Laser

EFFECTS OF CORRELATION BETWEEN REAL AND IMAGINARY PARTS OF THE QUADRATIC PUMP NOISE ON THE INTENSITY FLUCTUATION OF A SINGLE-MODE LASER SYSTEM

2009 ◽  
Vol 23 (02) ◽  
pp. 155-161
Author(s):  
G. H. ZHAO ◽  
Y. L. XIANG ◽  
D. C. MEI
Keyword(s):  
Correlation Function ◽  
Relaxation Time ◽  
Intensity Fluctuation ◽  
Laser System ◽  
Single Mode ◽  
Intensity Correlation ◽  
Mode Laser ◽  
The Real ◽  
Single Mode Laser ◽  
Intensity Correlation Function

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.

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