Octave spanning spectra and pulse compression by nondegenerate cascaded four-wave mixing: 2D simulation and experiment

TL;DR

This paper combines theoretical modeling, numerical simulation, and experimental validation to demonstrate efficient octave-spanning spectra and pulse compression through cascaded four-wave mixing in bulk media, emphasizing the role of 2D geometries.

Contribution

It introduces a comprehensive 2D model and experimental evidence for pulse compression and spectral broadening via cascaded four-wave mixing in chi(3) media.

Findings

Successful generation of octave-spanning spectra

Effective pulse compression without complex control

Agreement between simulation and experimental results

Abstract

We present a theoretical model and respective numerical simulation of cascaded four-wave mixing of femtosecond pulses in bulk chi(3) media, evidencing the importance of two-dimensional interaction geometries in the efficient generation of frequency-converted beams, and in agreement with the experimental results in terms spectral and spatial distribution and efficiency, demonstrating compression without the need of complex amplitude or phase control.