Rotating surface soliton complexes in annular waveguides

TL;DR

This paper investigates the formation, stability, and rotation of surface soliton complexes in annular waveguides with multiple concentric rings, revealing how rotation influences their existence and stabilization.

Contribution

It introduces the concept of rotating surface soliton complexes in annular waveguides and explores how rotation frequency affects their stability and existence domains.

Findings

Multipole-mode solitons can rotate steadily during propagation.

Rotation frequency significantly influences the existence domain of solitons.

Rotation can enhance the stabilization of surface multipole-mode solitons.

Abstract

We address surface soliton complexes formed at the edge of annular guiding structures containing several concentric rings. Such soliton complexes feature a -phase difference between neighboring spots. It is shown that the multipole-mode solitons can rotate steadily upon propagation, and the existence domain is strongly affected by the rotation frequency. The rotation may enhance the stabilization of surface multipole-mode solitons.