Study of the effects of Cr ions on Yb in Cr,Yb:YAG crystal

被引：19

作者：

Dong, J ^{[1
]}

Deng, PZ ^{[1
]}

Xu, J ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

来源：

OPTICS COMMUNICATIONS | 1999年 / 170卷 / 4-6期

关键词：

Cr; Yb : YAG crystal; self-Q-switching laser; absorption and fluorescence spectra;

D O I：

10.1016/S0030-4018(99)00519-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The absorption and fluorescence spectra of Cr,Yb:YAG crystal were measured. There are two absorption bands at 940 nm and 968 nm although the absorption coefficient is lower than that of the absorption peak of Yb:YAG superimposed in Cr:YAG absorption peak. The emission peak intensity is 4 times lower than that of Yb:YAG, which may be caused by the existence of the ground state absorption of Cr4+ which quenches the Yb3+ emission intensity. Although the emission peak of Cr,Yb:YAG is lower than that of Yb:YAG, there is an advantage of this crystal which combines the saturable absorber and gain medium into one and can be a self-Q switching laser crystal if Cr,Yb:YAG crystal is pumped with high energy power. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：255 / 258

页数：4

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