Decoherence and turbulence sources in a long laser
Abstract
We investigate the turn-on process in a laser cavity where the roundtrip time is several orders of magnitude greater than the active medium timescales. In this long delay limit the electromagnetic field build-up can be mapped experimentally roundtrip after roundtrip. We show how coherence settles down starting from a stochastic initial condition. In the early stages of the turn-on, we show that power drop-outs emerge, persist for several round-trips and seed dark solitons. These latter structures exhibit a chaotic dynamics and emit radiation that can lead to an overall turbulent dynamics depending on the cavity dispersion.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2022
- DOI:
- 10.48550/arXiv.2212.11074
- arXiv:
- arXiv:2212.11074
- Bibcode:
- 2022arXiv221211074R
- Keywords:
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- Physics - Optics;
- Nonlinear Sciences - Chaotic Dynamics;
- Nonlinear Sciences - Pattern Formation and Solitons
- E-Print:
- 6 pages, 8 figures