2.7μm激光晶体Yb,Er,Ho∶GSGG的生长与光谱性能研究  

Growth and Spectroscopic Properties of the 2.7μm Yb,Er,Ho∶ GSGG Laser Crystal

作　　者：孙敦陆[1] 罗建乔[1] 张庆礼[1] 刘文鹏[1] 谷长江[1] 殷绍唐[1] 

机构地区：[1]中国科学院安徽光学精密机械研究所,安徽省光子器件与材料重点实验室,合肥230031

出　　处：《人工晶体学报》2012年第3期547-550,共4页Journal of Synthetic Crystals

基　　金：国家自然科学基金(50872135;91122021;90922003;10804068)

摘　　要：用提拉法成功生长出了Yb,Er,Ho∶GSGG晶体,对其光谱性能进行了研究。测量了晶体在320～3000 nm波段内的吸收光谱。用970 nm激光激发,测量了晶体的稳态和瞬态荧光光谱,拟合得到2.7～3μm激光上下能级寿命,用F-L公式计算了晶体的发射截面。与Er∶GSGG和Yb,Er∶GSGG晶体的光谱参数进行了比较,结果表明,Yb,Er,Ho∶GSGG是一种更适合LD泵浦,实现低阈值、高效率2.79μm激光输出的新型激光晶体。The Yb,Er,Ho∶ GSGG crystal was grown successfully by the Czochralski method.Its spectroscopic characteristics were investigated.The absorption spectrum in the range of 320-3000 nm were measured.The fluorescence spectrum and lifetime were determined by exciting with 970 nm laser,the emission cross-section was calculated by F-L formula.These parameters were also compared with the Er∶ GSGG and Yb,Er∶ GSGG crystals,suggesting the new Yb,Er,Ho∶ GSGG laser crystal is more suitable to be pumped by LD laser and the 2.79 μm laser output is realized easily with low threshold and high efficiency.

关 键 词：激光晶体 吸收系数 光谱 寿命 

分 类 号：O78[理学—晶体学]