| 强激光远场光束质量参数的测试 |
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| 引用本文： | 叶征宇,宋海平,王龙,王涛涛,于彦明,吕跃广,王智勇,蒋毅坚.强激光远场光束质量参数的测试[J].强激光与粒子束,2011,23(1). |
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| 作者姓名： | 叶征宇 宋海平 王龙 王涛涛 于彦明 吕跃广 王智勇 蒋毅坚 |
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| 作者单位： | 1. 北京工业大学 激光工程研究院， 北京 100124； 2. 中国北方电子设备研究所， 北京 100083； 3. 中国北方车辆研究所， 北京 100072 |
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| 基金项目： | 新世纪优秀人才支持计划 |
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| 摘 要： | 提出漫射红外成像-多点标校测量方法，用于测量强激光远场光束质量参数。在激光远场距离处设置漫反射靶板，用成像探测器摄取经靶面漫射的脉冲强激光光斑图像；在靶面中心处挖小孔，孔后放置能量探测器实时测量激光脉宽和峰值功率。同时对整个激光光斑图像进行能量定标，进而得出远场脉冲强激光的实际空间能量/功率分布、总能量,以及相应的光束质量参数。应用该测量方法，对高能TEA CO2激光进行测量研究，测得其远场光束截面半径为80.2 mm，发散角为1.55 mrad。
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| 关 键 词： | 红外漫射成像 多点标校 脉冲强激光 光束质量 远场光斑 |
| 收稿时间： | 1900-01-01; |
Measurement of far-field beam quality parameters of high power laser |
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| Ye Zhengyu,Song Haiping,Wang Long,Wang Taotao,Yu Yanming,Lü Yueguang,Wang Zhiyong,Jiang Yijian.Measurement of far-field beam quality parameters of high power laser[J].High Power Laser and Particle Beams,2011,23(1). |
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| Authors: | Ye Zhengyu Song Haiping Wang Long Wang Taotao Yu Yanming Lü Yueguang Wang Zhiyong Jiang Yijian |
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| Institution: | 1. Institute of Laser Engineering, Beijing University of Technology, Beijing 100022, China; 2. North China Institute of Electronic Equipment， Beijing 100083, China; 3. China North Vehicle Research Institute， Beijing 100072, China |
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| Abstract: | This paper proposes an infrared diffusion imaging and multi-point calibration method to measure the far-field beam quality parameters of the high-power laser.The high-energy pulse laser spot's images are obtained with an imaging detector by laying the diffuse reflection target in far field.The pulse-width and peak power of the laser are measured using an energy detector which is put behind a hole at the center of the target plane.According to the energy calibration of the laser spot's images,the energy and ... |
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| Keywords: | infrared diffusion imaging multi-point calibration high-energy pulsed laser beam quality far field beam spot |
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