Publications

Abstract : Nonlinear Schrödinger–Maxwell Bloch equation with tapered term is considered which describes the optical soliton propagation in a tapered erbium doped fiber. Especially, in this work, energy levels are treated as inhomogeneously broadening. The dispersion relation is calculated by means of linear stability analysis (LMA). Graphically, we demonstrate the characteristics of the modulation instability (MI) in the form of typical dependence of the instability growth rate on various parameters such as dispersion, nonlinearity, inhomogeneous broadening and frequency. For the first time, we investigate the impact of inhomogeneous broadening on MI gain spectrum. Furthermore, to illustrate the impact of inhomogeneous broadening, we compare the coefficient of broadening as homogeneous and inhomogeneous.