Nonlinear Pulse Propagation and Solitons in Active Semiconductor Media

Abstract

In this chapter we will discuss the spatio-temporal dynamics of an InGaAs broad-area semiconductor laser amplifier with injection of one or more ultrashort light pulses. We will base our simulations on the Maxwell--Bloch--Langevin equations presented and discussed in Chap. 3. We also present results of our numerical simulations of the propagation of a picosecond pulse in a broad-area semiconductor laser with particular focus on the spatiotemporal dynamics within the active layer. Further we will consider the simultaneous and oblique injection of two optical pulses in the charge carrier plasma of a broad-area semiconductor laser and analyze the nonlinear mechanisms responsible for the formation of a spatio-spectral soliton.