激光技术, 2009, 33 (4): 440, 网络出版: 2010-03-11  

分束李普奇与分束汤普逊棱镜性能的比较分析

Performance comparison between splitting Lippich prism and Thompson prism
作者单位
曲阜师范大学 激光研究所,曲阜 273165
摘要
为了更好地设计和选择使用分束李普奇棱镜和分束格兰-汤普逊棱镜,从理论上分析了分束李普奇棱镜与分束格兰-汤普逊棱镜的分束角、分离角和光强分束比。结果表明,分束李普奇棱镜和分束格兰-汤普逊棱镜的分束角和光强分束比与棱镜的结构角和副结构角有关;对于相同的结构角和副结构角,两种棱镜的分束角相同,但它们的光强分束比不同。出射的o光与e′光的分离角与副结构角有关;对于o光垂直出射的需要,选用分束李普奇棱镜设计为好;对于大分束角的需要,选用分束格兰-汤普逊棱镜设计为好。选用最佳设计方案可以分别实现两种棱镜光强的对称分束,实验结果与理论计算相符。
Abstract
In order to design and use the splitting Lippich prism and the splitting Grand-Thompson prism,the splitting angle,separation angle and splitting ratio of light intensity were analyzed.The results show:the splitting angle and splitting ratio of light intensity of the splitting Lippich prism and the splitting Grand-Thompson prism are dependent on the structure angle and the vice structure angle;both the prisms have the same splitting angle and different light intensity splitting ratios if they have the same structure angle and vice structure angle.The separation angle about beam o and beam e′ is dependent on the vice structure angle:the design of splitting Lippich prism is better for the need of normal output of beam o;the design of splitting Grand-Thompson prism is better for the need of a big splitting angle.With optimum design symmetric beam splitting of light intensity can be achieved for both the prisms.The experiment data are in accordance with the theoretical results.

邵俊平, 吴福全, 郝殿中, 洪芳. 分束李普奇与分束汤普逊棱镜性能的比较分析[J]. 激光技术, 2009, 33(4): 440. SHAO Jun-ping, WU Fu-quan, HAO Dian-zhong, HONG Fang. Performance comparison between splitting Lippich prism and Thompson prism[J]. Laser Technology, 2009, 33(4): 440.

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