Contents 1. Introduction
Optical frequency combs are cornerstones in modern frequency metrology [1], [2]. Generally, coherent microcombs indicates defined phase relationships between the frequency lines. The most well-known coherent comb states are dissipative Kerr soliton combs appearing in the anomalous dispersion regime [3]. There is also a plethora of other stable states that appear in the normal dispersion regime and also in the presence of complication factors such as cavity-mode interaction. Here we use a novel technique based on a four-wave mixing time lens to study the evolution of a pulsed structure formed by interlocked domain walls connecting two stable CW solutions. We reveal the presence of an island of stability between regions of chaos for a small range of pump detuning. We also record the fast transition between chaos to the pulsed structure and back to chaos when sweeping the laser detuning.
