Nonlinear Dynamics in Semiconductor Lasers - Abstract

Kostet, Bilal

Spontaneous motion of cavity solitons induced by delayed feedback in semiconductor cavity

We consider a driven vertical cavity surface emitting laser with delayed feedback. We focus on the second-order critical transition point. In this long-wavelength pattern forming system, the space-time dynamics is governed by deriving the nonvariational scalar Swift-Hohenberg equation [1]. We show that delayed feedback induced spontaneously transition from stationary to moving localized structures. We also show that the nature of this transition is supercritical. Finally, we characterize this transition by estimating the threshold and the speed. [1] M. Tlidi, E. Averlant, A. Vladimirov, and K. Panajotov. Phys. Rev. A 86, 033822 – Published 18 September 2012