Disturbance of Soliton Pulse Propagation from Higher-Order Dispersive Waveguides

TL;DR

This paper investigates how higher-order dispersion affects soliton pulse propagation in waveguides, revealing that a minimum pulse duration of 100-fs is required for stable soliton transmission in practical photonic crystal waveguides.

Contribution

It develops a numerical model using the Nonlinear Schrödinger Equation to analyze the impact of higher-order dispersion on soliton pulses in waveguides.

Findings

Higher-order dispersion disrupts soliton propagation.

A 100-fs pulse duration is necessary for stable solitons.

Numerical simulations confirm the importance of dispersion management.

Abstract

Optical soliton pulses offer many applications within optical communication systems, but by definition a soliton is only subjected to second-order anomalous group-velocity-dispersion; an understanding of higher-order dispersion is necessary for practical implementation of soliton pulses. A numerical model of a waveguide was developed using the Nonlinear Schrodinger Equation, with parameters set to ensure the input pulse energy would be equal to the fundamental soliton energy. Higher-order group-velocity-dispersion was gradually increased, for various temporal widths and waveguide dispersions. A minimum pulse duration of 100-fs was determined to be necessary for fundamental soliton pulse propagation in practical photonic crystal waveguides.