Open AccessEssentials of resonance-enhanced soliton-based supercontinuum generation
Author(s) -
Xue Qi,
Kay Schaarschmidt,
Mario Chemnitz,
Markus Schmidt
Publication year - 2020
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.382158
Subject(s) - supercontinuum , optics , doppler broadening , soliton , photonic crystal fiber , broadband , physics , dissipative soliton , resonance (particle physics) , dispersion (optics) , four wave mixing , bandwidth (computing) , nonlinear optics , nonlinear system , optical fiber , spectral line , laser , telecommunications , atomic physics , quantum mechanics , computer science
Supercontinuum generation is a key process for nonlinear tailored light generation and strongly depends on the dispersion of the underlying waveguide. Here we reveal the nonlinear dynamics of soliton-based supercontinuum generation in case the waveguide includes a strongly dispersive resonance. Assuming a gas-filled hollow core fiber that includes a Lorentzian-type dispersion term, effects such as multi-color dispersive wave emission and cascaded four-wave mixing have been identified to be the origin of the observed spectral broadening, greatly exceeding the bandwidths of corresponding non-resonant fibers. Moreover, we obtain large spectral bandwidth at low soliton numbers, yielding broadband spectra within the coherence limit. Due to the mentioned advantages, we believe the concept of resonance-enhanced supercontinuum generation to be highly relevant for future nonlinear light sources.