Multiple nonlinear resonances and frequency combs in bottle microresonators

TL;DR

This paper introduces a generalized equation for bottle microresonators, showing how nonlinear modes can create multiple resonances and instabilities that generate low repetition rate frequency combs, advancing understanding of nonlinear optical phenomena.

Contribution

The paper presents a generalized Lugiato-Lefever equation for bottle microresonators, revealing multiple coexisting nonlinear resonances and their role in frequency comb generation.

Findings

Nonlinear modes form multiple overlapping resonances.

Instabilities lead to low repetition rate frequency combs.

The generalized equation models complex nonlinear behaviors.

Abstract

We introduce the generalized Lugiato-Lefever equation describing nonlinear effects in the bottle microresonators. We demonstrate that the nonlinear modes of these resonators can form multiple coexisting and overlapping nonlinear resonances and that their instabilities lead to the generation of the low repetition rate frequency combs.