<title>Laser sources at 2 um and 3 um</title>

Abstract

Two laser systems emitting at 2 and 3 in have been developed for application in the biomedical field, such as photoablation and microsurgery. The design itwolved the evaluation of active materials, the optimization of pumping chamber and the analysis of different configurations of the resonant cavity. Holmium, Thulium and Erbium active ions in the YAG host have been considered. A complete characterization of the laser behavior has been carried out for the most interesting combinations of components. The Erbium laser has been also operated in Q-switch regime. The achieved results are comparable with the state of the art performances on the international market.