Ultrafast nonlinear dynamics

The propagation of short and intense laser pulses in optical fibers is associated with a rich landscape of nonlinear propagation scenarios and multidimensional dynamical regimes, which can be challenging to model, characterize, and control using conventional approaches. One of such regimes is when the nonlinear light-matter interactions are seeded by noise, leading to the development of instabilities and extreme events. Instabilities and nonlinear dynamics are central to nonlinear science, and the study of these phenomena is crucial as they define many complex physical systems, including hydrodynamics, acoustic waves, and optics. Our research focuses on developing and applying advanced methods for the real-time measurement of ultrafast dynamics and instabilities in in various fiber-optic systems such as single-mode fibers, multimode fibers, and fiber lasers, in the temporal, spectral, and spatial domains.

[1] Dudley, J., Dias, F., Erkintalo, M. et al. Instabilities, breathers and rogue waves in optics. Nature Photon 8, 755–764 (2014). link

[2] Ryczkowski, P., Närhi, M., Billet, C. et al. Real-time full-field characterization of transient dissipative soliton dynamics in a mode-locked laser. Nature Photon 12, 221–227 (2018). link