Multi-peak vector soliton families in defocusing Kerr resonators
Abstract
We report the existence of multi-peaked vector soliton families in normally dispersive passive Kerr resonators. Through cross-phase modulation between two orthogonal polarization components, each peak becomes tightly interlocked, enabling robust localization of the entire wave packet in defocusing cavities. Analysis using snakes-and-ladder diagrams demonstrates the diversity of these vector soliton families, which include dark-bright multi-peak solitons, flat-topped solitons, and modulation instability patterns, among others. Furthermore, stability analysis based on the coupled Lugiato-Lefever equations reveals that specific combinations of parameters can sustain stable vector cavity solitons, whose peak numbers can be continuously tuned by adding appropriate perturbations. These findings significantly expand the scope of soliton dynamics and optical frequency comb generation in pumped-dissipative systems, independent of dispersion conditions.
Keywords
Cite
@article{arxiv.2512.03603,
title = {Multi-peak vector soliton families in defocusing Kerr resonators},
author = {Pengxiang Wang and Carlos Mas-Arabi and Gian-Luca Oppo and Yiqing Xu and Miro Erkintalo and Stephane Coen and Bertrand Kibler and Julien Fatome and Gang Xu},
journal= {arXiv preprint arXiv:2512.03603},
year = {2025}
}