Paper 14092-40
Paper 14092-40
The strange map of synchronization: breathing solitons beyond the ordinary Arnold’s tongues
15 April 2026 • 14:10 - 14:30 CEST | Churchill (Niveau/Level 1)
Abstract
We experimentally uncover abnormal synchronization patterns in a breathing-soliton fiber laser, extending far beyond the classical Arnold’s tongues. By tuning intracavity loss, we map the synchronization between breathing frequency and cavity repetition rate, uncovering unexpected leaf-like and ray-like structures with internal holes—signatures of quasiperiodic dynamics. Supported by numerical modeling, these results provide the first experimental evidence of longpredicted complex synchronization geometries. Our findings establish breathing-soliton lasers as a versatile platform for exploring nonlinear synchronization in photonics and open new routes to control, stabilize, and harness dynamic behaviors in ultrafast optical systems.
Presenter
Christophe Finot
Université Bourgogne Europe, CNRS, Laboratoire Interdisciplinaire Carnot de Bourgogne (France)
Christophe FINOT is professor of Physics at the University Bourgogne-Europe (Dijon, France). Born in France in 1978, he graduated from the Institut d’Optique Graduate School (Paris-Saclay University in 2002), and received a PhD in Physics from the University of Bourgogne in 2005 before spending a year at the Optoelectronics Research Center, in Southampton (UK). Appointed associate professor in 2006, he was promoted to professor in 2010 and is currently vice-dean of the Faculty of Sciences and Technologies. He was elected junior member of the Institut Universitaire de France in 2017.
His main research areas dedicated to ultrafast photonics in fiber concern nonlinear optical shaping, all-optical information processing, extreme events, analogies between diffractive and dispersive optics as well as fiber lasers. More recently, he has taken an interest in the implementation of machine-learning approaches. He has coauthored more than 200 publications in international journals.