Chaotic dynamics in passively Q-switched Tm:LiYF4 laser operating at 2.3 μm on the 3H4 → 3H5 transition
Year: 2024
Type: article
Abstract: We report on the chaotic dynamics in a passively Q-switched 2.3-μm thulium laser operating on the 3H4 → 3H5 transition. The experiment exploits a Tm:LiYF4 crystal and various laser cavity configurations, involving an optional cascade laser on the 3F4 → 3H6 transition at 1.9 μm. The saturable absorber employed is Cr2+:ZnSe, which is exclusively saturated by the 2.3 μm laser. An analysis of the Q-switched dynamics shows a pronounced inclination of the laser operation toward the unstable and chaotic behavior. To understand the origins of this chaos, we monitor the population of the metastable 3F4 level via cascade laser operation at 1.9 μm, underlying this variable as an interesting parameter to survey chaotic instabilities.
Source: APL Photonics
DOI: 10.1063/5.0220220
Institutions: Centre National de la Recherche Scientifique, Université Paris-Saclay, Institut d’Optique Graduate School, Laboratoire Charles Fabry, École Nationale Supérieure d'Ingénieurs de Caen, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Centre de Recherche sur les Ions, les Matériaux et la Photonique, Université de Caen Normandie
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,750
Funder: Agence Nationale de la Recherche
OpenAlex ID: W4402268028