Title :
Time-Delay Concealment in a Three-Dimensional Electro-Optic Chaos System
Author :
Mengfan Cheng ; Xiaojing Gao ; Lei Deng ; Lingfeng Liu ; Yashuang Deng ; Songnian Fu ; Minming Zhang ; Deming Liu
Author_Institution :
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A three-dimensional (3D) chaotic system with/without time delay based on electro-optic nonlinear devices is proposed. The dynamical properties of the system are demonstrated using the bifurcation diagram, and the dynamical complexity is quantified by the permutation entropy. Moreover, when a time delay module is added to the system model, the security performance is analyzed via the autocorrelation function, delayed mutual information, and permutation information analysis. Numerical simulations show that the time-delay signature can be concealed by the system itself without any additional operations. The proposed 3D chaotic oscillator has potential applications in secure communication, random number generation, and chaos computing.
Keywords :
bifurcation; electro-optical devices; entropy; optical chaos; optical correlation; 3D chaotic oscillator; autocorrelation function; bifurcation diagram; chaos computing; delayed mutual information; dynamical complexity; dynamical properties; electro-optic nonlinear devices; numerical simulations; permutation entropy; permutation information analysis; random number generation; secure communication; security performance; three-dimensional electro-optic chaos system; time-delay concealment; Chaotic communication; Delay effects; Electrooptic modulators; Electrooptical waveguides; Nonlinear optics; Three-dimensional displays; Chaos; electro-optic nonlinear devices; optical chaotic system; time delay concealment;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2405564
