Optical frequency combs generated mechanically

TL;DR

This paper demonstrates that optical frequency combs can be generated mechanically through parametric excitation of an optical microresonator's vibrations, offering a novel method for comb generation.

Contribution

It introduces a new approach to generate optical frequency combs using mechanical vibrations of a microresonator, expanding the methods available for comb production.

Findings

Optical frequency combs can be generated via mechanical vibrations.

Parametric excitation effectively produces highly equidistant combs.

The method leverages nanoscale radius variations in microresonators.

Abstract

It is shown that a highly equidistant optical frequency comb can be generated by the parametric excitation of an optical bottle microresonator with nanoscale effective radius variation by its natural mechanical vibrations.