Solitons and frequency combs in silica microring resonators: Interplay of the Raman and higher-order dispersion effects

TL;DR

This paper investigates how Raman scattering and higher-order dispersion influence soliton and frequency comb formation in silica microring resonators, revealing thresholds and dynamic behaviors affecting their stability and spectral properties.

Contribution

It introduces a detailed analysis of the interplay between Raman effects and higher-order dispersion, highlighting their impact on soliton existence and frequency comb dynamics in silica microring resonators.

Findings

Raman effect sets a threshold for soliton stability based on the quality factor.

Generation of self-frequency shift- ing solitons and dispersive waves observed.

Broadening of Cherenkov radiation via Hopf instability reported.

Abstract

The influence of Raman scattering and higher order dispersions on solitons and frequency comb generation in silica microring resonators is investigated. The Raman effect introduces a threshold value in the resonator quality factor above which the frequency locked solitons can not exist and, instead, a rich dynamics characterized by generation of self-frequency shift- ing solitons and dispersive waves is observed. A mechanism of broadening of the Cherenkov radiation through Hopf instability of the frequency locked solitons is also reported.