固体激光远场瞬时光斑时空分布测量技术

李艳娜; 唐力铁; 谢翔云; 尹飞; 于志闯; 沈丽娟

doi:10.3788/IRLA201645.0817002

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固体激光远场瞬时光斑时空分布测量技术

李艳娜, 唐力铁, 谢翔云, 尹飞, 于志闯, 沈丽娟

文章导航 > 红外与激光工程 > 2016 > 45(8): 817002-0817002(7)

李艳娜, 唐力铁, 谢翔云, 尹飞, 于志闯, 沈丽娟. 固体激光远场瞬时光斑时空分布测量技术[J]. 红外与激光工程, 2016, 45(8): 817002-0817002(7). doi: 10.3788/IRLA201645.0817002

引用本文:

Li Yanna, Tang Litie, Xie Xiangyun, Yin Fei, Yu Zhichuang, Shen Lijuan. Measuring far-field instantaneous facula intensity space-time distribution of solid-state laser[J]. Infrared and Laser Engineering, 2016, 45(8): 817002-0817002(7). doi: 10.3788/IRLA201645.0817002

Citation:

Li Yanna, Tang Litie, Xie Xiangyun, Yin Fei, Yu Zhichuang, Shen Lijuan. Measuring far-field instantaneous facula intensity space-time distribution of solid-state laser[J]. Infrared and Laser Engineering, 2016, 45(8): 817002-0817002(7). doi: 10.3788/IRLA201645.0817002

固体激光远场瞬时光斑时空分布测量技术

doi: 10.3788/IRLA201645.0817002

1.
西北核技术研究所,陕西西安 710024

详细信息

作者简介:
李艳娜(1985-),女,工程师,硕士生,主要从事激光器理论方面的研究。Email:liyanna@stu.xjtu.edu.cn

中图分类号: TN247

Measuring far-field instantaneous facula intensity space-time distribution of solid-state laser

1.
Northwest Institute of Nuclear Technology,Xi'an 710024,China

摘要: 基于漫透射CCD成像法原理，建立了固体激光瞬时光斑时空分布测量系统。开展了该测量方法的可行性验证实验，能够精确地获得激光远场光斑图像，并运用Matlab软件对测量数据进行处理，得到激光远场光斑半径、光束质量、质心位置、光轴抖动、光强分布以及平均功率密度等参数。实验结果表明：利用漫透射CCD成像法测量固体激光远场瞬时光斑时空分布是可行的，测试系统采集频率可达120 Hz。该方法具有高分辨率、高帧频、低成本、使用方便的突出优点，能同时实现激光强度分布和功率的测量，测量功率误差小于2%。
- 漫透射 /
- 激光 /
- CCD成像法 /
- 光强分布 /
- 功率
Abstract: A simple system of measuring solid-state laser instantaneous facula intensity space-time distribution was established, based on the principle of CCD diffused transmission imaging. Experiments of verifying the feasibility of this system were carried out, and the pulse laser spot images were obtained with precision, and the laser intensity space-time distribution parameters such as beam radius, facula dithering, beam quality, light distributions and average power were obtained through CCD measuring data which were processed by Matlab soft ware. At last, the experiment result show that the method of CCD diffused transmission imaging for measuring laser instantaneous distribution is feasible, and the system acquisition frequency could reach 120 Hz. This system had advantage of high resolution, high frame frequency, low-cost and easy to use, which could realize the synchronous measurement between large laser spot intensity distribution and power, with less than 2 percent power measured error.
- diffused transmission /
- laser /
- CCD imaging method /
- intensity distribution /
- power

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固体激光远场瞬时光斑时空分布测量技术

doi: 10.3788/IRLA201645.0817002

1. 西北核技术研究所,陕西西安 710024

作者简介:
李艳娜(1985-),女,工程师,硕士生,主要从事激光器理论方面的研究。Email:liyanna@stu.xjtu.edu.cn

收稿日期: 2015-12-24
修回日期: 2016-01-27
刊出日期: 2016-08-25

中图分类号: TN247

关键词:

摘要: 基于漫透射CCD成像法原理，建立了固体激光瞬时光斑时空分布测量系统。开展了该测量方法的可行性验证实验，能够精确地获得激光远场光斑图像，并运用Matlab软件对测量数据进行处理，得到激光远场光斑半径、光束质量、质心位置、光轴抖动、光强分布以及平均功率密度等参数。实验结果表明：利用漫透射CCD成像法测量固体激光远场瞬时光斑时空分布是可行的，测试系统采集频率可达120 Hz。该方法具有高分辨率、高帧频、低成本、使用方便的突出优点，能同时实现激光强度分布和功率的测量，测量功率误差小于2%。