Observation of two state behavior in the Instability induced Supercontinuum Generation of exponential saturable nonlinearity

Abstract

We report a novel two state behavior in the Modulational Instability (MI) induced Supercontinuum Generation (SCG) in the exponential saturable nonlinearity (ESN). We identified the unique behavior of SCG in the ESN system, unlike the case of Kerr type nonlinearity, where the nonlinearity monotonously increases with power, in the case ESN, the effective nonlinearity follows in a unique such that there exist two different power at which the nonlinearity register same value. Because of which, an identical spectrum is observed at two different powers (i,e) input power (P) above and below saturation power (Ps). This we report as the two state behavior.