HIGH-DIMENSIONAL CHAOTIC DYNAMICS OF AN EXTERNAL-CAVITY SEMICONDUCTOR-LASER

We report experimental realization of high-dimensional chaos in a semi conductor laser with delayed feedback from a T-shaped cavity. We study the transition phenomena from regular to high-dimensional chaotic beh avior and analyze the time series quantitatively. Correlation dimensio ns up to C-2 similar or equal to 7 are determined reliably from experi mental data by a combination of a singular value analysis and a Grassb erger-Procaccia algorithm. Modeling the dynamical behavior using semic lassical delay rate equations provides a basic understanding of the ob served delay-induced instabilities.