Open AccessStochastic resonance based on modulation instability in spatiotemporal chaos
Author(s) -
Jing Han,
Hongjun Liu,
Nan Huang,
Zhaolu Wang
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.008306
Subject(s) - instability , physics , stochastic resonance , chaotic , nonlinear system , perturbation (astronomy) , statistical physics , modulation (music) , modulational instability , noise (video) , optics , quantum mechanics , computer science , acoustics , artificial intelligence , image (mathematics)
A novel dynamic of stochastic resonance in spatiotemporal chaos is presented, which is based on modulation instability of perturbed partially coherent wave. The noise immunity of chaos can be reinforced through this effect and used to restore the coherent signal information buried in chaotic perturbation. A theoretical model with fluctuations term is derived from the complex Ginzburg-Landau equation via Wigner transform. It shows that through weakening the nonlinear threshold and triggering energy redistribution, the coherent component dominates the instability damped by incoherent component. The spatiotemporal output showing the properties of stochastic resonance may provide a potential application of signal encryption and restoration.