Effects of a localized beam on the dynamics of excitable cavity solitons

TL;DR

This paper investigates how a localized beam influences the behavior of cavity solitons in a Kerr medium, revealing emergent excitability regimes and control mechanisms that enhance experimental observation.

Contribution

It introduces the concept of localized beam-induced excitability in cavity solitons and analyzes the complex bifurcation structure organizing these regimes.

Findings

Identification of two Class I excitable regimes induced by localized beams

Control of excitability thresholds through localized beam manipulation

Organization of the phenomena by three codimension-2 bifurcation points

Abstract

We study the dynamical behavior of dissipative solitons in an optical cavity filled with a Kerr medium when a localized beam is applied on top of the homogeneous pumping. In particular, we report on the excitability regime that cavity solitons exhibits which is emergent property since the system is not locally excitable. The resulting scenario differs in an important way from the case of a purely homogeneous pump and now two different excitable regimes, both Class I, are shown. The whole scenario is presented and discussed, showing that it is organized by three codimension-2 points. Moreover, the localized beam can be used to control important features, such as the excitable threshold, improving the possibilities for the experimental observation of this phenomenon.