120 W的二极管泵浦Nd:YAG绿光激光器
120 W diode-pumped green Nd:YAG laser
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摘要: 对激光二极管泵浦的Nd：YAG声光调Q腔内倍频固体激光器的折叠腔型进行了研究，当泵浦功率达800 W时，在V型腔上实现了脉宽为80 ns、重复频率为10 kHz、发散角为6 mrad、绿光功率为112 W的输出；在Z型腔上实现了脉宽为95 ns、重复频率为10 kHz、发散角为4 mrad、绿光功率为120 W的输出。比较两种腔型的实验结果可看出，Z型腔由于插入的光学元件较多，腔长较长，输出激光的脉宽较宽，但输出激光的光束质量有明显的提高。Abstract: An LD side-pumped A-O Q-switched intracavity frequency doubled Nd: YAG laser was studied. A folded resonator with a single pump head was experimentally studied and theoretically analyzed. Under the condition of a total pump power of 800 W and a repetition rate of 10 kHz, a beam with a green output power of 112 W, a pulse width of 80 ns and a divergence angle of 6 mrad was achieved when V-shaped resonator was employed. When Z-shaped resonator was employed, a beam with output power of 120 W, pulse width of 95 ns and divergence angle of 4 mrad was obtianed．
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Key words:
- diode-pumped /
- folded resonator /
- a-o q-switch /
- intracavity-frequency-doubling
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