Diode-end-pumped 4.2-W continuous-wave Yb:Y2O3 ceramic laser

被引：61
|
作者：
Kong, J
Tang, DY
Lu, J
Ueda, K
Yagi, H
Yanagitani, T
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Univ Electrocommun, Inst Laser Sci, Chofu 1828585, Japan
[3] Konoshima Chem Co Ltd, Takuma Works, Kagawa 76911, Japan
来源：
OPTICS LETTERS | 2004年 / 29卷 / 11期
关键词：
D O I：
10.1364/OL.29.001212
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on an efficient diode-end-pumped polycrystalline Yb:Y2O3 ceramic laser. Continuous-wave output power of 4.2'W at 1078 nm was obtained under pump power of 19.5 W. The corresponding slope efficiency was 29%. The beam quality factor (M-2) at full pump power was measured to be 1.63. The threshold wavelengths of the laser at various output couplings were also investigated. It was found that the threshold wavelengths shifted similar to5 nm when the reflectivity of the output, coupler changed from 90% to 99.9%, as caused by the strong reabsorption effect in the ceramic sample. (C) 2004 Optical Society of America.
引用
收藏
页码：1212 / 1214
页数：3
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