Soliton collision induced explosions in a mode-locked fibre laser

Abstract Soliton explosion refers to a striking nonlinear dynamics in dissipative systems. In this state, a dissipative soliton collapses but returns back to its original state afterwards. Yet, the origin of such exotic soliton dynamics remains elusive. Here it is revealed that soliton collision can...

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Bibliographic Details
Published in:Communications physics 2019-12, Vol.2 (1), Article 34
Main Authors: Peng, Junsong, Zeng, Heping
Format: Article
Language:English
Subjects:
Collapse
Dynamical systems
Energy dissipation
Evolution
Explosions
Fiber lasers
Fourier transforms
Lasers
Mode locking
Nonlinear dynamics
Nonlinear systems
Solitary waves
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Summary:Abstract Soliton explosion refers to a striking nonlinear dynamics in dissipative systems. In this state, a dissipative soliton collapses but returns back to its original state afterwards. Yet, the origin of such exotic soliton dynamics remains elusive. Here it is revealed that soliton collision can induce soliton explosions in a mode-locked fibre laser, benefiting from synchronous measurements of the spatio-temporal intensity evolution and the real-time spectra evolution using dispersive Fourier transform. Up to seven nonlinear regimes are observed successively in the laser by increasing the pump power only, including single-pulse mode locking, standard soliton explosions, noise-like mode locking, stable double pulsing, soliton collision induced explosions, soliton molecules, and double-pulse noise-like mode locking. These experimental findings are conducive to understand complex soliton dynamics in many nonlinear dissipative systems.
ISSN:2399-3650
2399-3650
DOI:10.1038/s42005-019-0134-8