Topological Filters for Solitons in Coupled Waveguides Networks

TL;DR

This paper explores how the topology of coupled waveguide networks can be engineered to control and filter soliton propagation, advancing understanding of topology-nonlinearity interactions in optical fibers.

Contribution

It introduces a novel approach to using inhomogeneous waveguide network topology as a tool for filtering solitons in optical systems.

Findings

Proper network topology enables selective soliton transmission.

Inhomogeneous networks can act as effective soliton filters.

Topology influences soliton dynamics and control in waveguide arrays.

Abstract

We study the propagation of discrete solitons on chains of coupled optical waveguides where finite networks of waveguides are inserted at some points. By properly selecting the topology of these networks, it is possible to control the transmission of traveling solitons: we show here that inhomogeneous waveguide networks may be used as filters for soliton propagation. Our results provide a first step in the understanding of the interplay/competition between topology and nonlinearity for soliton dynamics in optical fibers.