| 变反射率镜非稳腔Φ20mm口径Nd：glass激光器研究 |
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| 引用本文： | 常兵,蔡希洁,李庆国.变反射率镜非稳腔Φ20mm口径Nd：glass激光器研究[J].中国激光,1995,22(5):321-328. |
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| 作者姓名： | 常兵 蔡希洁 李庆国 |
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| 作者单位： | 中国科学院上海光机所 |
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| 摘 要： | 详细分析了高斯变反射率镜非稳腔的腔模和输出特性，给出了各阶横模的解析表达式。采用高质量的高斯变反射率镜在Φ２０ｍｍ大口径Ｎｄ：ｇａｌｓｓ激光介质上实验研究了这种腔的输出特性，获得了１０Ｊ级发散全角为０．１８ｍｒａｄ近衍射极限的高强激光束，该发散角只有相应普通非稳腔的１８％，同样泵浦时输出能量约为普通非稳腔的７０％。最后实验研究了这种腔结构的失谐灵敏性．
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| 关 键 词： | 变反射率镜非稳腔，大口径，高亮度 |
| 收稿时间： | 1994/6/13 |
A Φ20 mm Nd:glass Laser Using an Unstable Resonator with Gaussian Mirror |
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| Chang Bing,Cai Xijie,Li Qingguo.A Φ20 mm Nd:glass Laser Using an Unstable Resonator with Gaussian Mirror[J].Chinese Journal of Lasers,1995,22(5):321-328. |
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| Authors: | Chang Bing Cai Xijie Li Qingguo |
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| Abstract: | The analytic results of TEM modes in an unstable resonator with Gaussian variable reflectivity mirror are given. The output characteristics of a Φ 20 mm Nd: glass laser using a resonator of this kind are studied experimentally. The output beam has a near diffraction-limited divergence of 0.18 mrad and about 10 J energy. Its misalignment stability is studied,too. |
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| Keywords: | unstable resonator with Gaussian mirror large-size high brightness |
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