Soliton generation through temporal reflection in media with a frequency-dependent nonlinearity

TL;DR

This paper explores how temporal reflection in media with frequency-dependent nonlinearity can generate new solitons, with potential applications in creating short, intense photonic pulses.

Contribution

It introduces a novel mechanism for soliton generation via temporal reflection influenced by frequency-dependent nonlinearity and Raman effects.

Findings

Temporal reflection leads to new soliton formation.

Tuning pulse parameters controls the number of generated solitons.

Raman scattering and zero-nonlinearity wavelength are key to efficient soliton generation.

Abstract

We demonstrate that the temporal reflection of a weak dispersive pulse on a soliton in media with a frequency-dependent nonlinearity leads to the generation of new solitons, whose number can be selected by tuning parameters of the dispersive pulse. By carefully analyzing the different processes involved, we show that a virtuous interplay between Raman scattering and a zero-nonlinearity wavelength is a key enabler for soliton generation to occur, limiting the initial soliton redshift and allowing for an efficient energy transfer between the dispersive pulse and its reflection. Finally, we believe results presented in this work may contribute guidelines for the generation of short and intense pulses for various photonic applications.