High-power pulse trains excited by modulated continuous waves

TL;DR

This paper investigates the formation and propagation of high-power pulse trains generated from modulated continuous waves in optical fibers, demonstrating their robustness and the effects of Raman shifts using solutions of the Hirota equation.

Contribution

It introduces a detailed analysis of pulse train dynamics from modulated CWs, including the impact of higher-order effects like Raman scattering, using the Hirota equation.

Findings

Pulses from maximally compressed trains maintain shape during propagation.

Double pulse trains exhibit robustness despite Raman-induced frequency shifts.

The study models pulse dynamics considering higher-order effects in optical fibers.

Abstract

Pulse trains growing from modulated continuous waves (CWs) are considered, using solutions of the Hirota equation for solitons on a finite background. The results demonstrate that pulses extracted from the maximally compressed trains can propagate preserving their shape and forming robust arrays. The dynamics of double high-power pulse trains produced by modulated CWs in a model of optical fibers, including the Raman effect and other higher-order terms, is considered in detail too. It is demonstrated that the double trains propagate in a robust form, with frequencies shifted by the Raman effect.