Publications (2)7.17 Total impact
-
Article: High efficiency laser action of 1% at. Yb<sup>3+</sup>:Sc<sub>2</sub>O<sub>3</sub> ceramic.
[show abstract] [hide abstract]
ABSTRACT: We report the spectroscopic characteristics and the laser performances of a low-doped 1% at. Yb:Sc<sub>2</sub>O<sub>3</sub> ceramic sample. Under end- pumping at 933 nm and 968 nm in quasi-CW mode, at 1040.5 nm the laser delivers a maximum output power of 4.3 W and 1.77 W, respectively with a corresponding slope efficiency of 74% and 80%, which are, to the best of our knowledge, the highest value reported in literature for ceramics. We explored the tuning range of the sample, which spans from 1005 nm to 1050.5 nm, and finally we characterized the low losses tunable cavity at 1032 nm.Optics Express 09/2012; 20(20):22134-42. · 3.59 Impact Factor -
Article: Direct comparison of Yb3+:CaF2 and heavily doped Yb3+:YLF as laser media at room temperature.
[show abstract] [hide abstract]
ABSTRACT: We report an extensive comparison of the laser performances of diode-pumped Yb(3+):YLF (30% at.) and Yb(3+):CaF(2) (5% at.) crystals, lasing at room-temperature and operating in two different operation mode, i.e. Continuous Wave (CW) and quasi-CW. An in-depth investigation of the crystals behavior by changing the pump power, clearly shows the crystal absorption depends on the lasing conditions. Therefore, we report an unambiguous definition of the slope efficiency calculated taken into account the real measured crystal absorption under laser action. Finally, we present a study of problems related to thermally induced losses which are expected influencing the laser performance.Optics Express 09/2009; 17(20):18312-9. · 3.59 Impact Factor
