Time-delayed nonlinear optical systems: temporal instabilty and cooperative chaotic dynamics

摘要

We present the results of numerical simulation of a nonlinear optical system with a time-delayed feedback which exhibits spatio-temporal chaotic states. The model includes three main phenomena governing the system: temporal delay, diffusion and diffraction. We focused our attention on the statistical properties of this system and analysed the join action of mentioned phenomena, features of spatial spectra in wide range of parameters, scaling relations. We found that under certain conditions power spectrum of phase fluctuations in chaotic states monotonically decreases as a function of spatial frequency. This causes us to anticipate that such class of optical systems can be used for an artificial optical turbulence simulation.