Surface response correction method of light intensity detector in high energy laser measurement

被引：0
|
作者：
Xue F. [1 ,2 ]
Chen Y. [1 ]
Duan Y. [1 ]
Lin H. [1 ]
Da Z. [1 ]
机构：
[1] Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an
[2] University of Chinese Academy of Sciences, Beijing
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2021年 / 50卷
关键词：
Contrast; Measurement; Modulation degree; Non-uniformity of surface response;
D O I：
10.3788/IRLA20210215
中图分类号：
学科分类号：
摘要：
In order to reduce the influence of the non-uniformity of the surface response of the intensity detector on the near field parameter measurement for the high-energy laser inertial confinement fusion device (ICF), a correction method for the non-uniformity of the light-intensity detector surface response in the near-field parameter measurement of the high-energy laser was proposed. Theoretically, a multi-point calibration linear correction model based on the high-energy laser near-field spatial evaluation factor was deduced, and a non-uniformity automatic correction device on surface response for high-uniformity linear output light intensity detector was designed and built. In order to verify the effectiveness of the proposed method, the surface response non-uniformity of a certain type of scientific-grade CCD was corrected. The surface response modulation degree of the detector was reduced from 1.42 to 1.08, and the contrast was reduced from 0.014 to 0.004. Compared with the two-point calibration method, the uniformity of the light intensity detector after correction using the proposed method in this article was greatly improved. The results show that this method can provide an effective technical means for the correction of the uniformity of the surface response of the light intensity detector in the parameter measurement of the high-energy laser ICF device in my country. © 2021, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
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