Chaos g\'en\'er\'e par une non lin\'earit\'e 2D et une dynamique \`a retard

TL;DR

This paper introduces a novel optoelectronic system that generates high-dimensional chaotic optical signals using nonlinear delay dynamics, suitable for secure optical data encryption.

Contribution

The work presents a new optoelectronic architecture with a nonlinear delay system based on integrated optics interferometry, enabling ultra-fast and high-dimensional chaos for encryption.

Findings

Validated the mathematical model with experimental results

Achieved chaotic dynamics up to several GHz frequencies

Demonstrated potential for high-dimensional chaos in optical encryption

Abstract

We present a new optoelectronic architecture intended for chaotic optical intensity generation. The principle relies on an electro-optic non-linear delay dynamics, which non linearity is performed by a 4-waves integrated optics interferometer involving 2 independent electro-optic modulation inputs. The setup allows both to have an ultra-fast dynamics up to several GHz frequencies, and potentially high dimensional chaos intended for encryption of optical data at the physical layer. We have built a mathematical model of the system and analyzed a number of its possible solutions: stable steady states, periodic and chaotic regimes. The experimental observations allowed to validate the dynamical model, through good qualitative agreements with the numerical simulations.