Summary
2023
Session Number:A5L-4
Session:
Number:A5L-43
Rogue Waves and Extreme Events in Mid Infrared Quantum Cascade Lasers Under External Optical Feedback
Grillot Frédéric, Spitz Olivier,
pp.206-209
Publication Date:2023-09-21
Online ISSN:2188-5079
Summary:
This work aims at reviewing our recent advances in the nonlinear dynamics of mid-infrared quantum cascade lasers (QCLs) hence from the first cartography of the non-linear regimes to chaos synchronization and optical dragon-kings. Under optical feedback, QCLs have been proven to display several non-linear dynamical regimes, including undamped oscillations and low-frequency fluctuations, and adding a periodic forcing created an entrainment of the non-linear spiking for the largest coupling rates. When injected into a response QCL, the deterministic chaos from the drive laser can be reproduced by the response laser and this corresponds to chaos synchronization. A cross-polarization technique allows displaying square wave with a tunable duty cycle and period, while creating an asymmetric cavity gives raise to rogue waves. Contrary to rogue waves found in other semiconductor lasers, those in QCLs do not scale as time-delay phenomena because they are driven by opto-thermal effects. This phenomenon competes with optical dragon-kings, which are similar extreme events but with a huger probability for the most prominent bursts and which are not derived from a scale-free distribution.