Reversible ultrafast soliton switching in dual-core highly nonlinear optical fibers

TL;DR

This paper demonstrates reversible ultrafast soliton switching in dual-core highly nonlinear optical fibers through experimental and theoretical analysis of nonlinear inter-core dynamics.

Contribution

It introduces a novel experimental investigation of nonlinear switching mechanisms in dual-core fibers, supported by a coupled nonlinear Schrödinger equations model.

Findings

Identified transitions between inter-core oscillations and self-trapping states.

Achieved reversible ultrafast soliton switching.

Model agrees well with experimental results.

Abstract

We experimentally investigate a nonlinear switching mechanism in a dual-core highly nonlinear optical fiber. We focus the input beam of femtosecond pulses on one core only, to identify transitions between inter-core oscillations, self-trapping in the cross core, and self-trapping of the pulse in the straight core. A model based in the system of coupled nonlinear Schrodinger equations provides surprisingly good agreement with the experimental findings.