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Proceedings Paper

Modeling of a green upconversion pumped Er:YAG laser
Author(s): Serban Georgescu; Ovidiu Toma
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Paper Abstract

Mathematical modeling is used to estimate the characteristics of the upconversion-pumped Er:YAG laser emitting in green function of the erbium concentration, reflectivity of the coupling mirror and co-doping. Besides the excited-state absorption, cooperative upconversion processes as well as cross-relaxation are included in our model. The main drawback of the Er:YAG system is the presence of a parasitic absorption at the emission wavelength, originating from the 4I13/2 level. The results of our simulations suggest that the highest efficiency could be obtained for an erbium concentration of 5 at.% and a reflectivity of the coupling mirror 0.94. Tentative reducing the population of the 4I13/2 level by co-doping would have a weak but negative influence.

Paper Details

Date Published: 21 October 2004
PDF: 8 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.582818
Show Author Affiliations
Serban Georgescu, National Institute for Laser, Plasma, and Radiation Physics (Romania)
Ovidiu Toma, National Institute for Laser, Plasma, and Radiation Physics (Romania)


Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics
Valentin I. Vlad, Editor(s)

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