Nonlinear Dynamics in Semiconductor Lasers - Abstract

Masoller, Cristina

Investigating complex dynamics in laser systems: A symbolic data analysis perspective

In this talk I will discuss how nonlinear tools of time-series analysis applied to the observed output signals of various laser systems can provide new insight into the underlying dynamics. I will consider as examples from the dynamics of semiconductor lasers: the sudden polarization switching (PS) occurring in vertical-cavity surface-emitting lasers (VCSELs) [1], abrupt intensity dropouts induced by self-delayed optical feedback (in the low-frequency-fluctuations LFF regime) [2] and ultra-high pulses induced by continuous-wave coherent optical injection (optical rogue waves) [3]. I will also discuss temporal correlations in the output of a fiber laser during the laminar-turbulence transition [4]. I will show how nonlinear data analysis tools allow characterizing dynamical transitions and extreme intensity fluctuations. [1] C. Masoller et al, "Quantifying sudden changes in dynamical systems using symbolic networks", New J. of Phys. 17, 023068 (2015). [2] A. Aragoneses et al, Ünveiling the complex organization of recurrent patterns in spiking dynamical systems", Sci. Rep. 4, 4696 (2014). [3] J. Zamora-Munt et al, "Rogue waves in optically injected lasers: origin, predictability, and suppression", Phys. Rev. A 87, 035802 (2013). [4] A. Aragoneses et al, Ünveiling temporal correlations characteristic to phase transition in the intensity of fibre laser radiation", Phys. Rev. Lett. 116, 033902 (2016).