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| 刻螺纹对Nd：YAG晶体棒输出功率影响的实验研究 | |
| 引用本文： | 高彦伟,刘晓峰,黄永宗,李斌,孙年春.刻螺纹对Nd：YAG晶体棒输出功率影响的实验研究[J].光学与光电技术,2008,6(3):41-44. |
| 作者姓名： | 高彦伟 刘晓峰 黄永宗 李斌 孙年春 |
| 作者单位： | 1. 四川大学电子信息学院,四川,成都,610064 2. 成都莱普科技有限公司,四川,成都,610041 3. 成都东骏激光有限责任公司,四川,成都,611630 |
| 摘 要： | 针对Nd：YAG棒刻螺纹是否能改善激光器的输出，理论上分析了Nd：YAG晶体棒内热传导过程及影响其冷却效果的因素。给出了表面刻上螺纹后，Nd：YAG晶体棒表面积的变化结果和其对表面冷却换热方式的改变。对使用螺纹棒的激光器输出进行了实验研究，与普通棒的实验结果对比发现：用螺纹棒比用普通棒时平均功率大了23．2％，发散角小了3mrad。说明激光棒的表面刻槽可以提高冷却效果，有效地提高了激光器的输出。 |
| 关 键 词： | 固体激光器 螺纹棒 对流换热系数 远场发散角 焦斑法 |
| 收稿时间： | 2007/7/26 |
Study on Effect of Groove on Nd: YAG Crystal Rods' Output Power |
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| GAO Yan-wei,LIU Xiao-feng,HUANG Yong-zong,LI Bin,SUN Nian-chun.Study on Effect of Groove on Nd: YAG Crystal Rods'''' Output Power[J].optics&optoelectronic technology,2008,6(3):41-44. | |
| Authors: | GAO Yan-wei LIU Xiao-feng HUANG Yong-zong LI Bin SUN Nian-chun |
| Institution: | GAO Yan-wei1 LIU Xiao-feng1 HUANG Yong-zong2 LI Bin3 SUN Nian-chun1(1 School of Electronics , Information Engineering,Sichuan University,Chengdu 610064,China,2 Chengdu Laipu Science , Technology Co.Ltd.,Chengdu 610041,3 Chengdu Dongjun Laser Co.Ltd.,Chengdu 611630,China) |
| Abstract: | In view of whether groove on Nd∶YAG crystal rods can improve the output of the laser, the process of heat conduction of Nd: YAG crystal rods and the factors of cooling efficiency are analyzed in this paper. The change of the surface area of Nd∶YAG crystal rods and that of the style of thermal cooling exchange are studied as well. Experimental results of the laser output with grooved Nd∶YAG rod are obtained. Comparing with the results of ordinary rods, the result shows that the average power increases 23.3%, and the fax-field divergence angle decreases 3 mrad. The method which groove on the surace of the Nd∶YAG rod can improve the output of the laser. |
| Keywords: | solid-state laser grooved rod convective heat-transfer coefficient far-field divergence angle focus spot method |
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