Spectroscopic properties and diode end-pumped 2.79 μm laser performance of Er,Pr:GYSGG crystal

被引：98

作者：

Chen, Jiakang ^{[1
,2
]}

Sun, Dunlu ^{[1
]}

Luo, Jianqiao ^{[1
]}

Zhang, Huili ^{[1
,2
]}

Dou, Renqin ^{[1
,2
]}

Xiao, Jingzhong ^{[3
]}

Zhang, Qingli ^{[1
]}

Yin, Shaotang ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Photon Devices & Mat, Hefei 230031, Anhui, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Univ Coimbra, Dept Phys, CEMDRX, P-3004516 Coimbra, Portugal

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 20期

基金：

中国国家自然科学基金;

关键词：

GYSGG CRYSTAL; ER3+; TUNABILITY; ENERGY; ND3+; YSGG; YAG; HO;

D O I：

10.1364/OE.21.023425

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a 968 nm diode end-pumped Er,Pr:GYSGG (Gd1.17Y1.83Sc2Ga3O12) laser at 2.79 mu m operated in the pulse and continuous-wave (CW) modes. The lifetimes for the upper laser level I-4(11/2) and lower level I-4(13/2) are 0.52 and 0.60 ms, respectively. The laser produces 284 mW of power in the CW mode, corresponding to the optical-to-optical efficiency of 14.8% and slope efficiency of 17.4%. The maximum laser energy achieved is 2.4 mJ at a repetition rate of 50 Hz and pulse duration of 0.5 ms, corresponding to a peak power of 4.8 W and slope efficiency of 18.3%. These results suggest that doping deactivator Pr3+ ions can effectively decrease the lower-level lifetime and improve the laser efficiency. (C) 2013 Optical Society of America

引用

页码：23425 / 23432

页数：8

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