强激光与粒子束, 2005, 17 (3): 321, 网络出版: 2006-04-28   

强湍流效应下激光大气传输短曝光光斑统计分析

Statistical properties of short-exposure images with strong turbulent effects
作者单位
中国科学院安徽光学精密机械研究所,大气光学中心,安徽,合肥,230031
摘要
利用数值模拟的方法,对强湍流效应下激光大气传输焦平面短曝光光斑的统计特性进行了初步分析,并与实验结果进行了对比.结果表明:在强湍流效应下,焦平面短曝光光斑破碎成一系列的小光斑,这些破碎光斑的等效半径与爱里斑半径近似相等;接收器中心置于光轴轴心处,当接收孔径等于爱里斑直径时,接收的均值光强最大.
Abstract
Numerical simulation was used to quantitatively analyze the statistical properties of short-exposure images with strong turbulent effects. Moreover, we compared the numerical results with the experimental results. The analytic results show that the short-exposure images break into some small spots with strong turbulent effects.For example, the coherence length of atmosphere is equal to 4.7 cm. In addition, the equivalent scale of these broken spots is comparable with the Airy spot. Moreover, when the receive aperture is equal to the dimension of Airy spot, the received average intensity on the axis is the largest.
参考文献

[1] 马东堂,庄钊文,魏急波,等. 空间激光通信中的大气闪烁问题研究[J]. 中国激光,2002,29:277-280.
Ma D T, Zhuang Z W, Wei J B, et al. Studies of laser atmospheric scintillation problem in space laser communication. Chinese Journal of Lasers, 2002, 29:277-280.

[2] 塔塔尔斯基. 湍流大气中波的传播理论[M]. 北京:科学出版社,1978.
Tatarskii. Wave propagation in a turbulent media. Beijing:Science Press, 1978.

[3] Kerr J R, Dunphy J R. Experimental effects of finite transmitter apertures on scintillations[J]. J Opt Soc Am, 1973, 63(1): 1-8.

[4] Gong Z B, Wang Y J, Wu Y. Finite temporal measurements of the statistical characteristics of the atmospheric coherence length[J]. Appl Opt, 1998, 37(21): 4541-4543.

[5] 王英俭. 激光大气传输及其相位补偿的若干问题探讨[D]. 合肥:中国科学院安徽光学精密机械研究所,1996.
Wang Y J. Some study on the laser propagation in the atmosphere and its phase compensation. Doctor dissertation. Hefei: Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences,1996.

[6] 石小燕,王英俭,黄印博. 发射系统遮拦比对均强聚焦光束光斑扩展的影响[J]. 强激光与粒子束,2003,15(12):1181-1183.
Numerical analysis on the uniform focused beam spreading induced by atmosphere turbulence with different obscuring ratio. High Power Laser and Particle Beams, 2003,15(12):1181-1183.

[7] 饶瑞中,王世鹏,刘晓春. 实际大气中激光闪烁的概率分布[J]. 光学学报,1999,19(1):81-86.
Rao R Z, Wang S P, Liu X C. Probability distribution of laser irradiance scintillation in a real turbulent atmosphere. Acta Optica Sinica, 1999, 19(1):81-86.

刘建国, 黄印博, 王英俭. 强湍流效应下激光大气传输短曝光光斑统计分析[J]. 强激光与粒子束, 2005, 17(3): 321. LIU Jian-guo, HUANG Yin-bo, WANG Ying-jian. Statistical properties of short-exposure images with strong turbulent effects[J]. High Power Laser and Particle Beams, 2005, 17(3): 321.

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