| 一种大面积高能激光光束参数的在线测量方法 |
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| 引用本文： | 陈绍武,王群书,赵宏,邵碧波,王飞,宇文璀蕾,张检民.一种大面积高能激光光束参数的在线测量方法[J].强激光与粒子束,2006,18(10):1589-1592. |
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| 作者姓名： | 陈绍武 王群书 赵宏 邵碧波 王飞 宇文璀蕾 张检民 |
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| 作者单位： | 1. 西安交通大学 激光与红外应用研究所， 西安 710049；2. 西北核技术研究所， 西安 710024 |
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| 基金项目： | 国防科技基础研究基金资助课题 |
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| 摘 要： | 提出了一种大面积连续波高能激光光束参数的在线测量方法——环形光刀扫描测量法。该方法采用偏心安装的斜面环形光刀高速扫描反射，光电探测器阵列沿反射光圆周均匀布置探测，使得绝大部分被测激光沿原光路传播，只有少量取样光被反射到探测器阵列上。通过对采集得到的探测器响应信号进行空间映射计算和图像复原，得到激光束的光强分布参数。该方法可用于光束直径数百mm的高能激光光束测量，测量空间分辨率约2 mm，时间分辨率为30~50 ms。
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| 关 键 词： | 高能激光光束 时空分布 在线测量 图像复原 |
| 文章编号： | 1001-4322(2006)10-1589-04 |
| 收稿时间： | 2006-03-15 |
| 修稿时间： | 2006-08-28 |
On-line parameters measurement method for high energy laser with large beam profile |
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| CHEN Shao-wu,WANG Qun-shu,ZHAO Hong,SHAO Bi-bo,WANG Fei,YUWEN Cui-lei,ZHANG Jian-min.On-line parameters measurement method for high energy laser with large beam profile[J].High Power Laser and Particle Beams,2006,18(10):1589-1592. |
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| Authors: | CHEN Shao-wu WANG Qun-shu ZHAO Hong SHAO Bi-bo WANG Fei YUWEN Cui-lei ZHANG Jian-min |
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| Institution: | 1. Institute of Laser and Infrared Application, Xi’an Jiaotong University, Xi’an 710049, China;2. Northwest Institute of Nuclear Technology, P.O.Box 69-26, Xi’an 710024, China |
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| Abstract: | A novel on-line measurement method for continuous wave high energy laser beam is presented.The system based on this method is mainly consisted of a scanning circular reflector and a photoelectric detector array disposed along the circumference of the pan.The laser beam passing through the system except a little sample light is reflected into the detector array.Through the arithmetic of spatial mapping and image restoration with the output signal of detector array,the spatial-temporal distribution of the laser beam parameters is obtained.This method can be used to measure the high energy laser beam on-line with several hundred micrometers in diameter.The spatial resolution is 2 mm and the temporal resolution is 30~50 ms. |
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| Keywords: | High energy laser beam Spatial-temporal distribution On-line measurement Image restoration |
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