Abstract
We report the experimental observation of extreme instabilities in a self-pulsing fiber laser under the influence of stimulated Brillouin scattering (SBS). Specifically, we observe temporally localized structures with high intensities that can be referred to as rogue events through their statistical behaviour with highly-skewed intensity distributions. The emergence of these SBS-induced rogue waves is attributed to the interplay between laser operation and resonant Stokes orders. As this behaviour is not accounted for by existing models, we also present numerical simulations showing that such instabilities can be observed in chaotic laser operation. This study opens up new possibilities towards harnessing extreme events in highly-dissipative systems through adapted laser cavity configurations.
Highlights
Giant transient pulses which can cause irreversible damages to the fiber laser system itself
Using a simple experimental setup along with detailed statistical analysis, in combination with numerical simulations, we show for the first time to our knowledge that for specific cavity parameters the interplay between laser dynamics and SBS can result in the generation of extreme events characterized by highly-skewed intensity distributions
Previous studies dealing with SBS-induced instabilities in fiber lasers have considered laser configurations where self-pulsing is initiated by stimulated Brillouin scattering
Summary
Giant transient pulses which can cause irreversible damages to the fiber laser system itself. Using a simple experimental setup along with detailed statistical analysis, in combination with numerical simulations, we show for the first time to our knowledge that for specific cavity parameters the interplay between laser dynamics and SBS can result in the generation of extreme events characterized by highly-skewed intensity distributions.
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