LD泵浦Nd-La共掺和Nd-Sc共掺CaF_2无序晶体的激光性能  

CW Laser Performance of Nd-La∶CaF_2 and Nd-Sc∶CaF_2 Disordered Crystals Pumped by A Laser Diode

作　　者：张菊婷 朱江峰(指导)[1] 王军利[1] 魏志义[2] 苏良碧[3] 徐军[4] 

机构地区：[1]西安电子科技大学物理与光电工程学院,西安710071 [2]中国科学院物理研究所光物理重点实验室,北京100190 [3]中国科学院上海硅酸盐研究所透明光功能无机材料重点实验室,上海201800 [4]同济大学物理科学与工程学院,高等研究院,上海200092

出　　处：《光子学报》2016年第1期62-66,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(No.61205130);科技部国家重大科学仪器设备开发专项(No.2012YQ120047)资助~~

摘　　要：对790nm激光二极管泵浦Nd-La共掺和Nd-Sc共掺CaF_2无序晶体激光器的特性进行了研究,比较了掺杂不同浓度La^(3+)和Sc^(3+)的Nd∶CaF_2晶体的吸收光谱和输出激光特性.在5 W泵浦功率下,将0.5at.%Nd^(3+)与5at.%La^(3+)∶CaF_2,0.5at.%Nd^(3+)与3at.%Sc^(3+)∶CaF_2掺杂,分别获得1.10W和0.64 W的连续激光输出,斜效率分别为23.0%和12.8%,阈值泵浦功率仅为10mW.实验结果表明,Nd-La共掺和Nd-Sc共掺的CaF_2晶体是一种可用于二极管泵浦且可获得高功率高效率激光输出的激光介质.The laser characteristics of the Nd-La ： CaF2 and Nd-Sc ： CaF2 co-doping disordered crystals pumped by a 790 nm laser diode were studied. Absorption spectrum and lasing performances of Nd：CaF2 crystal with different La3＋-Sc3＋ doping concentration were studied respectively. Under the pump power of 5 W, the laser power of 1.10 W and 0. 64 W are obtained with the co-doping of 0.5 at. % Nda＋, 5 at. % La3＋ ： CaF2, 0.5 at. % Nd3＋ and 3 at. % Sc3＋ ： CaF2 respectively, corresponding to the slope efficieneies of 23.0% and 12.8% respectively. The laser threshold for both crystals is as low as 10 mW. The results show that the new co-doped crystals are promising laser mediums for high power and high efficiency diode pumped solid-state lasers.

关 键 词：无序晶体 Nd-La共掺氟化钙晶体 Nd-Sc共掺氟化钙晶体 二极管泵浦 连续激光输出 

分 类 号：TN248[电子电信—物理电子学]