Nonlinear Dynamics in Semiconductor Lasers - Abstract

Tlidi, Mustapha

Spontaneous motion of cavity solitons induced by an intrinsic symmetry breaking tradition in semiconductor cavity

We consider a driven vertical cavity surface emitting lasers. We explore the vicinity of the critical point associated with instability for which we derive a paradigmatic nonvariational scalar Swift-Hohenberg equation that describes short wavenumber or large wavelength pattern forming systems. This work unveils evidence of the transition from stable stationary to moving localized structures in one spatial dimension as a result of a parity breaking instability. This behavior is attributed to the nonvariational character of the model. We show that the nature of this transition is supercritical. We characterize analytically and numerically this bifurcation scenario from which emerges asymmetric moving localized structures. A generalization for two-dimensional settings will be discussed.