3-D numerical simulation of Yb:YAG active slabs with longitudinal doping gradient for thermal load effects assessment

Year: 2014

Authors: Ferrara P., Ciofini M., Esposito L., Hostaša J., Labate L., Lapucci A., Pirri A., Toci G., Vannini M., Gizzi LA.

Autors Affiliation: Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Via G. Moruzzi, 1 – I-56124 Pisa, Italy; Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Largo Enrico Fermi 6, I-50125 Firenze, Italy; Istituto di Scienza e Tecnologia dei Materiali Ceramici, Consiglio Nazionale delle Ricerche, Via Granarolo 64, 48018 Faenza, Italy; Department of Glass and Ceramics, ICT Prague, Technická 5, 166 28 Prague, Czech Republic; Istituto Nazionale di Fisica Nucleare, Sezione di Pisa and Laboratori Nazionali di Frascati, Italy; stituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, I-50019 Sesto Fiorentino (FI), Italy

Abstract: We present a study of Yb:YAG active media slabs, based on a ceramic layered structure with different doping levels. We developed a procedure allowing 3D numerical analysis of the slab optical properties as a consequence of the thermal load induced by the pump process. The simulations are compared with a set of experimental results in order to validate the procedure. These structured ceramics appear promising in appropriate geometrical configurations, and thus are intended to be applied in the construction of High Energy Diode Pumped Solid State Laser (DPSSL) systems working in high repetition-rate pulsed regimes. (C) 2014 Optical Society of America

Journal/Review: OPTICS EXPRESS

Volume: 22 (5)      Pages from: 5375  to: 5386

More Information: We acknowledge support from the EC initiative \”LASERLAB-EUROPE\” (EC contract no. 284464) – Joint Research Activity WP33 – \”European Research Objectives on Lasers for Industry, Technology and Energy (EURO-LITE)\” and the HiPER (ESFRI-FP7) project. J.H. would also like to acknowledge the financial support from a specific university research grant (MSMT No 20/2013); P.F would also like to acknowledge the financial support from regione Toscana through the project \”R&D of innovative wavefront sensors and Adaptive Optics for laser-driven Radiological Devices – AdOpRad\” (protocollo ISTI-CNR No 0000745, 09/03/2012).
KeyWords: Ceramic materials; Optical pumping; Solid state lasers; Ytterbium, 3-D numerical analysis; 3-D numerical simulation; Active media; Diode pumped solid state laser; Doping gradients; Doping levels; Geometrical configurations; Layered Structures, Thermal load
DOI: 10.1364/OE.22.005375

Citations: 29
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