Superlocalization reveals long-range synchronization of vibrating soliton molecules

TL;DR

This paper introduces a super-localization technique in the time domain to observe and analyze the long-range synchronization of vibrating soliton molecules in a fiber ring cavity laser, revealing complex interactions.

Contribution

The study demonstrates the first observation of long-range synchronization between soliton molecules using super-localization, highlighting interplay of diverse interaction mechanisms within the laser cavity.

Findings

Long-range synchronization of soliton molecules observed.

Super-localization method achieves unprecedented accuracy.

Interaction mechanisms coexist despite different physical origins.

Abstract

We implement a super-localization method in the time domain that allows the observation of the external motion of soliton molecules in a fiber ring cavity laser with unprecedented accuracy. In particular, we demonstrate the synchronization of two oscillating soliton molecules separated by several nanoseconds, with inter-molecules oscillations following the same pattern as the intramolecular motion of the individual molecules. These experimental findings indicate an interplay between the different interaction mechanisms that coexist inside the laser cavity, despite their very different characteristic ranges, timescales, strengths, and physical origins.