Highly efficient continuous-wave laser operation of laser diode-pumped Nd,Y:CaF_2 crystals  

作　　者：张倩 苏良碧 姜大朋 马凤凯 覃志鹏 谢国强 郑建刚 邓青华 郑万国 钱列加 徐军 

机构地区：[1]Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]Key Laboratory for Laser Plasmas (Ministry of Education), Department of Physics and Astronomy,Shanghai Jiao Tong University [4]Research Center of Laser Fusion, China Academy of Engineering Physics

出　　处：《Chinese Optics Letters》2015年第7期69-72,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.61178056,61422511,and 51432007

摘　　要：The effect of co-doping Y3＋ and the doping concentration of Nd3＋ on the spectroscopic properties and laser performance of Nd：CaF2 crystals are investigated systematically. For a 0.5% Nd：CaF2 crystal, the emission life- time at 1.06 μm increases from 18 to 361 μs by co-doping 10 at.% Y3＋, while the emission cross section increases to 4.27 × 10^-20 cm2 at 1054 nm. With a 10 at.% doping concentration of Y3＋, 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, 1070 Y：CaF2 and 0.6% Nd, 1070 Y：CaF2 crystals, with slope efficiencies over 30% and 27%, respectively, and a maximum output power up to 901 mW.The effect of co-doping Y3＋ and the doping concentration of Nd3＋ on the spectroscopic properties and laser performance of Nd：CaF2 crystals are investigated systematically. For a 0.5% Nd：CaF2 crystal, the emission life- time at 1.06 μm increases from 18 to 361 μs by co-doping 10 at.% Y3＋, while the emission cross section increases to 4.27 × 10^-20 cm2 at 1054 nm. With a 10 at.% doping concentration of Y3＋, 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, 1070 Y：CaF2 and 0.6% Nd, 1070 Y：CaF2 crystals, with slope efficiencies over 30% and 27%, respectively, and a maximum output power up to 901 mW.

关 键 词：Continuous wave lasers Doping (additives) Q switched lasers 

分 类 号：TN31[电子电信—物理电子学] TN249