Performances of a diode end-pumped GYSGG/Er,Pr:GYSGG composite laser crystal operated at 2.79 μm

被引：23

作者：

Chen, Jiakang ^{[1
,2
]}

Sun, Dunlu ^{[1
]}

Luo, Jianqiao ^{[1
]}

Zhang, Huili ^{[1
,2
]}

Cao, Shihao ^{[1
,2
]}

Xiao, Jingzhong ^{[3
]}

Kang, Hongxiang ^{[4
]}

Zhang, Qingli ^{[1
]}

Yin, Shaotang ^{[1
]}

机构：

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

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

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

[4] Acad Mil Med Sci, Inst Radiat Med, Beijing 100850, Peoples R China

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 20期

基金：

中国国家自然科学基金;

关键词：

SOLID-STATE LASERS; THERMAL LENS DETERMINATION; UNDOPED ENDS; YAG ROD; LENGTH; ER;

D O I：

10.1364/OE.22.023795

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a comparative investigation on Er,Pr:GYSGG and GYSGG/Er,Pr:GYSGG composite crystals at 2.79 mu m. Simulating results show the highest temperatures are 369 K and 318 K, respectively. A maximum output power of 825 mW with slope efficiency of 19.2% and maximum laser energy of 3.65 mJ with slope efficiency of 22.7% are obtained in the GYSGG/Er, Pr: GYSGG composite crystal, which have an obvious improvement than those of Er, Pr: GYSGG crystal. The thermal focal lengths are respectively 41 and 62 mm when the pump power is 2.5 W. All these results indicate that the GYSGG/Er, Pr: GYSGG composite crystal has great advantages in reducing the influence of thermal effects and improving laser performances. (C) 2014 Optical Society of America

引用

页码：23795 / 23800

页数：6

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