激光钠信标光斑漂移和光斑半径的数值模拟与分析

大气与环境光学学报 ›› 2015, Vol. 10 ›› Issue (5): 357-367.

• 大气光学 • 下一篇

激光钠信标光斑漂移和光斑半径的数值模拟与分析

刘向远1,2,3, 李玉杰1,3, 钱仙妹1,* , 饶瑞中1

（1. 中国科学院安徽光学精密机械研究所中国科学院大气成分与光学重点实验室, 安徽合肥 230031;
2 皖西学院材料与化工学院, 安徽六安 237012;
3. 中国科学院大学, 北京 100039）

收稿日期:2014-04-15 修回日期:2015-05-11 出版日期:2015-09-28 发布日期:2015-09-11
通讯作者: 刘向远（1969—），男，汉族，安徽六安人，副教授，博士研究生，研究方向为激光大气传输与光信息处理。 E-mail:qianxianmei@aiofm.ac.cn
作者简介:刘向远（1969—），男，汉族，安徽六安人，副教授，博士研究生，研究方向为激光大气传输与光信息处理。
基金资助:
安徽省高校自然科学基金课题（KJ2013B331）资助

Numerical Simulation and Analysis of Beam Wander and Spot Radius for Sodium Laser Beacon

LIU Xiangyuan1,2,3, LI Yujie1,3, QIAN Xianmei1,*, RAO Ruizhong1

(1.Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2. College of Materials and Chemical Engineering, West Anhui University, Lu’an 237012, China;
3. University of Chinese Academy of Sciences, Beijing 100039,China)

Received:2014-04-15 Revised:2015-05-11 Published:2015-09-28 Online:2015-09-11

摘要/Abstract

摘要：

激光钠信标的光斑漂移、光斑半径的变化对自适应光学校正有直接的影响。在激光钠信标光斑漂移方差和有效半径理论模型的基础上，采用数值模拟的方法，在三种大气湍流模式下，具体研究了激光钠信标光斑与激光光斑漂移方差和有效半径的差异，计算了不同发射口径时激光钠信标光斑的长曝光与短曝光有效半径的平均值，分析了有再泵浦能量激光对激发钠信标光斑漂移方差和平均有效半径的影响。研究结果表明，大气湍流强度、激光发射口径以及再泵浦激光能量都能够影响激光钠信标光斑漂移和光斑半径。

关键词: 激光钠信标, 漂移方差, 平均有效半径, 再泵浦能量激光

Abstract:

The beam wander and spot radius of Sodium Laser Beacon (SLB) have direct effects on correction of adaptive optics. Based on wander variance and effective radius model of SLB, the differences in these aspects between SLB and laser are studied under the three atmospheric turbulence models by the numerical simulation method. Then, the average effective radius of SLB spot for the long-exposure and short-exposure is calculated for different laser launch diameters. Effects of laser with repumping power on beam wander and spot radius of SLB are analyzed. Results show that the strength of atmospheric turbulence, laser launch diameters and the repumping power have influence on beam wander and spot radius of SLB.

Key words: sodium laser beacon, wander variance, average effective radius, laser with repumping energy

中图分类号:

O436

刘向远李玉杰钱仙妹饶瑞中. 激光钠信标光斑漂移和光斑半径的数值模拟与分析[J]. 大气与环境光学学报, 2015, 10(5): 357-367.

LIU Xiang-Yuan, LI Yu-Jie, QIAN Xian-Mei, RAO Rui-Zhong. Numerical Simulation and Analysis of Beam Wander and Spot Radius for Sodium Laser Beacon[J]. Journal of Atmospheric and Environmental Optics, 2015, 10(5): 357-367.

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激光钠信标光斑漂移和光斑半径的数值模拟与分析

Numerical Simulation and Analysis of Beam Wander and Spot Radius for Sodium Laser Beacon

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