Open AccessStochastic resonance of amplitude modulation wave in single-mode laser driven by color noises
Author(s) -
Liangying Zhang,
Cao Li,
Guoxiang Jin
Publication year - 2007
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.56.5093
Subject(s) - stochastic resonance , physics , amplitude , modulation (music) , laser , white noise , noise (video) , signal (programming language) , exponential function , optics , amplitude modulation , continuous wave , spectral density , frequency modulation , acoustics , mathematical analysis , telecommunications , mathematics , computer science , radio frequency , image (mathematics) , programming language , artificial intelligence
By adding modulation wave to the equation of the laser intensity in the gain-noise model of the single-mode laser, we use the linear approximation method to calculate the power spectrum and signal-to-noise ratio(SNR) of the laser intensity, which is driven by two color noises correlated in the form of exponential function. The result shows that the correlated time and the correlated strength between the noises have great effect on the stochastic resonance(SR), and the variations of SNR with the frequency of the carrier signal ω and the modulator signal Ω are quite different from the curve of variation of white noise.