Affiliation:
1. Aston Institute of Photonic Technologies Aston University Birmingham B4 7ET UK
2. Advanced Photonic Technology Lab College of Electronic and Optical Engineering Nanjing University of Posts and Telecommunications Nanjing 210023 China
3. The Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui University Hefei 230039 China
4. Laboratoire ICB UMR 6303 CNRS Université Bourgogne Franche‐Comté 9 avenue Alain Savary Dijon F‐21000 France
Abstract
AbstractPeriod doubling is a universal bifurcation of central importance in all disciplines of nonlinear science, which generally signals the existence of chaotic dynamics in the vicinity of the system parameters. Although observed in diverse ultrafast laser configurations, there is still no consensus on its physical origin. Real‐time spectral characterization techniques have recently allowed revisiting pulsating dynamics, from period‐2 to long‐period pulsations. Following a contextual review, this article presents a variety of bifurcation sequences entailing the spectral pulsations of dissipative solitons. These experiments, using ultrafast fiber lasers operated in both chromatic dispersion regimes, are confronted with numerical simulations to demonstrate that self‐phase modulation represents a general mechanism triggering period‐2 bifurcations. In addition, by ramping up the pump power, original sequences of period‐doubling bifurcations intertwined with more complex bifurcations are presented, where entrainment phenomena are unveiled. These findings provide a more general understanding of the period‐doubling bifurcation in ultrafast laser systems while highlighting their potentially intricate combinations with complex bifurcations, which may be exclusively observable from the spectral domain.
Funder
Natural Science Foundation of Jiangsu Province
National Natural Science Foundation of China
H2020 Marie Skłodowska-Curie Actions
Subject
Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
12 articles.
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