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The Effects of Sine-Squared Pulse Modulation Correlated Noises on Stochastic Resonance in Single-Mode Laser

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The Effects of Sine-Squared Pulse Modulation Correlated Noises on Stochastic Resonance in Single-Mode Laser

Zhi-Yun Wang, Pei-Jie Chen, and Liang-Ying Zhang

School of Physics and Electronic Engineering, Xiangfan University, Xiangfan 441053, P.R. China Reprint requests to Z.-Y. W.; E-mail:wzy425@126.com

Z. Naturforsch.66a,411 – 416 (2011); received October 11, 2010 / revised January 8, 2011 By means of the linear approximation method, the output intensity power and signal-to-noise ratio (SNR) of a single-mode laser driven by sine-squared pulse modulation correlated noise are calculated.

The effects of amplitudeB, periodT, and widthτon the resonance curves of SNR to the pump noise intensities and quantum noise intensities of pulse are discussed, and it is found that the SNR shows a stochastic resonance with the varying of pulse widthτ.

Key words:Single-Mode Laser; Stochastic Resonance; Noises.

PACS numbers:42.60.Mi; 05.40.-a

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