| 激光光束质量参数测量的实验研究 |
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| 引用本文： | 赵长明. 激光光束质量参数测量的实验研究[J]. 激光技术, 2000, 24(6): 341-344 |
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| 作者姓名： | 赵长明 |
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| 作者单位： | 1.北京理工大学光电工程系, 北京 100081 |
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| 摘 要： | 采用CCD系统实验测量了LD泵浦Nd:YAG激光器的光束质量参数,研究了CCD系统的背景噪声特性和积分区域选取对光束质量参数测量的影响,从实验数据中得到以下结论:(1)在有、无背景光两种条件下,背景记数强烈地依赖于曝光时间和像素的合并,温度影响可以忽略不计;(2)为获得M2合理的测量结果,至少要选择5%积分区域。
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| 关 键 词： | M2因子 CCD摄像机 光束质量 |
| 收稿时间： | 1999-10-11 |
| 修稿时间： | 1999-10-11 |
Investigation on the experimental measurement of laser beam quality |
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| Zhao Changming. Investigation on the experimental measurement of laser beam quality[J]. Laser Technology, 2000, 24(6): 341-344 |
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| Authors: | Zhao Changming |
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| Abstract: | The beam quality of a LD pumped Nd:YAG laser is measured with CCD camera system. The background characteristics of the CCD system and the influence of the size of integral box upon measurement results are investigated. The following conclusions can be derived form experimental results: (1) Background is strongly depend upon exposure time and pixel binning,while temperature has an ignorable effect upon it,whether with or without ambient light. (2) A 5%-cut is the minimum value in order to get a reasonable result. |
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| Keywords: | M~2 factor CCD camera beam qual |
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