The effect of co-doping Y3 tand the doping concentration of Nd3 ton the spectroscopic properties and laser performance of Nd:CaF2 crystals are investigated systematically. For a 0.5% Nd:CaF2 crystal, the emission life...The effect of co-doping Y3 tand the doping concentration of Nd3 ton the spectroscopic properties and laser performance of Nd:CaF2 crystals are investigated systematically. For a 0.5% Nd:CaF2 crystal, the emission lifetime at 1.06 μm increases from 18 to 361 μs by co-doping 10 at.% Y3 t, while the emission cross section increases to 4.27 × 10-20cm2 at 1054 nm. With a 10 at.% doping concentration of Y3 t, Nd; Y:CaF2 crystals concentrate emission bands that peak at 1054 nm with shoulders at 1063 nm, and FWHM at about 30 nm. A diode-pumped,highly efficient laser operation is obtained with 0.5% Nd, 10% Y:CaF2 and 0.6% Nd, 10% Y:CaF2 crystals, with slope efficiencies over 30% and 27%, respectively, and a maximum output power up to 901 m W.展开更多
基金supported by the National Natural Science Foundation of China under Grant Nos.61178056,61422511,and 51432007
文摘The effect of co-doping Y3 tand the doping concentration of Nd3 ton the spectroscopic properties and laser performance of Nd:CaF2 crystals are investigated systematically. For a 0.5% Nd:CaF2 crystal, the emission lifetime at 1.06 μm increases from 18 to 361 μs by co-doping 10 at.% Y3 t, while the emission cross section increases to 4.27 × 10-20cm2 at 1054 nm. With a 10 at.% doping concentration of Y3 t, Nd; Y:CaF2 crystals concentrate emission bands that peak at 1054 nm with shoulders at 1063 nm, and FWHM at about 30 nm. A diode-pumped,highly efficient laser operation is obtained with 0.5% Nd, 10% Y:CaF2 and 0.6% Nd, 10% Y:CaF2 crystals, with slope efficiencies over 30% and 27%, respectively, and a maximum output power up to 901 m W.
