Observation of dispersive wave emission by temporal cavity solitons

TL;DR

This paper reports the first direct experimental observation of dispersive wave emission by temporal cavity solitons in a Kerr fiber resonator, enhancing understanding of their behavior under higher-order dispersion and implications for Kerr frequency combs.

Contribution

It provides the first experimental evidence of dispersive wave emission by temporal cavity solitons, supported by analytical and numerical validation, advancing knowledge of soliton dynamics in microresonators.

Findings

Dispersive wave emission observed in a Kerr fiber ring resonator.

Experimental results agree with analytical predictions.

Insights into spectral features of Kerr frequency combs.

Abstract

We examine a coherently-driven, dispersion-managed, passive Kerr fiber ring resonator and report the first direct experimental observation of dispersive wave emission by temporal cavity solitons. Our observations are in excellent agreement with analytical predictions and they are fully corroborated by numerical simulations. These results lead to a better understanding of the behavior of temporal cavity solitons under conditions where higher-order dispersion plays a significant role. Significantly, since temporal cavity solitons manifest themselves in monolithic microresonators, our results are likely to explain the origins of spectral features observed in broadband Kerr frequency combs.