| 系统动态范围对激光束束宽测量精度的影响 |
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| 引用本文： | 庞长富,魏光辉.系统动态范围对激光束束宽测量精度的影响[J].北京理工大学学报,1997,17(2):186-188. |
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| 作者姓名： | 庞长富 魏光辉 |
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| 作者单位： | 北京理工大学光电工程系 |
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| 摘 要： | 以激光束矩量分析理论为基础，给出了有效积分区域的概念，讨论了系统动态范围与有效积分区域的关系，给出了大有铲积分区域的方法，分析了在基模斯光束和是厄米－高斯光束测量中，系统动态范围对光束宽度测量精度的影响，通过具体的数据，得出了实际测量中对系统动态的一般要求。
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| 关 键 词： | 激光束 光束质量 动态范围 测量精度 |
Analysis of Dynamic Range Effect on Laser Beam Width Measurement Precision |
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| Pang Changfu,Wei Guanghin.Analysis of Dynamic Range Effect on Laser Beam Width Measurement Precision[J].Journal of Beijing Institute of Technology(Natural Science Edition),1997,17(2):186-188. |
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| Authors: | Pang Changfu Wei Guanghin |
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| Institution: | Pang Changfu,Wei Guanghin Department of Optical Engineering,Beijing Institute of Technology,Beijing 100081 |
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| Abstract: | On the basis of the laser beam moment analysis theory, the concept ofeffective integral region is proposed. The relation between dynamic range of themeasurement system and effective integral region is discussed. The method toenlarge effective integral region is given. Taking the measurement of fundamentalGaussian beam and high order Hermite-Gaussian beam as examples, the analysis ofthe dynamic range effect on measurement precision is made. The data indicate thatthe dynamic range have no great effect on measurement precision. The properdemand for the dynamic range in laser beam measurement is also proposed. |
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| Keywords: | laser beam laser beam quality measurement dynamic range |
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