High efficient, high beam quality, 38 W Nd:YAG slab laser end pumped by a stack with 3 diode bars

被引：0
|
作者：
Wu, NL [1 ]
Xu, JD [1 ]
Liao, Y [1 ]
Giesekus, J [1 ]
Du, KM [1 ]
Loosen, P [1 ]
Poprawe, R [1 ]
机构：
[1] Fraunhofer Inst Lasertech, D-52074 Aachen, Germany
来源：
LASER PROCESSING OF MATERIALS AND INDUSTRIAL APPLICATIONS II | 1998年 / 3550卷
关键词：
D O I：
10.1117/12.317921
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Nd:YAG slab is partially end-pumped by a diode laser stack with three diode laser bars. The pumped volume has a rectangular cross section. A hybrid resonator which is stable in the plane of small dimension and off-axis unstable in the plane of large dimension of the gain cross section was used, in order to obtain highly efficient laser operation at diffraction limited beam quality. In this paper the laser design and experimental results are reported. 31.2 W output power was obtained with M-2=1.3 in the unstable plane and M-2=1.7 in the stable plane. 38.6 W output power was obtained with M-2=1.7 in the unstable plane and M-2=3.9 in the stable plane.
引用
收藏
页码：433 / 440
页数：8
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