Ring cavity excitability and coherence resonance. Applications to communication systems

Abstract

We discuss the phenomena of excitability and coherence resonance of a nonlinear ring cavity where excitons and biexcitons are created. A bifurcation analysis of the ring cavity dynamics demonstrates both the existence of self-pulsation and excitability. In addition, we show that an excitable exciton-biexciton system in a ring cavity can display coherence resonance. Finally, the optimum conditions for these phenomena are investigated and the possibilities for applications in communication systems are discussed.