Abstract

Dissipative delayed dynamics offers a rich variety of interesting phenomena specific to high­dimensional systems. An attractive experimental realization of such dynamics is given by a CO₂ laser where the output intensity is fed back to an intracavity modulator with a certain time delay When the delay is of the same order of the characteristic oscillations, the dynamics is low dimensional with evidence of the transition to chaos through breaking of a 2-D torus. The two frequencies induced by the delay time and by the intrinsic feedback mechanism, respectively, compete with each other determining limit cycle behavior, quasiperiodicity, chaos and frequency locking, depending on the value of the control parameter.

© 1998 IEEE