激光大气传输湍流扰动仿真技术  

Simulation of laser beam propagation through turbulence

作　　者：李波 王挺峰[2] 王弟男[2] 田玉珍[2,3] 安雪晶[4] 

机构地区：[1]海军驻长春地区航空军事代表室,吉林长春130033 [2]中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室,吉林长春130033 [3]中国科学院研究生院,北京100039 [4]辽宁机电职业技术学院信息工程系,辽宁丹东118009

出　　处：《中国光学》2012年第3期289-295,共7页Chinese Optics

基　　金：中科院三期创新工程资助项目(No.O98Y32C100)

摘　　要：为了研究激光大气传输时湍流效应对激光应用技术的影响,对湍流扰动的仿真进行了分析。介绍了在实验室内进行激光大气传输湍流扰动研究的数值仿真技术和仿真系统。阐述了快速傅里叶变换(FFT)和Zernike多项式两种湍流扰动数值仿真方法,并且对比了两种方法的优劣。利用物理相位屏搭建了实物湍流仿真系统,介绍了其理论模型并进行了仿真实验,对激光经湍流系统传输后的光强能量分布进行了研究分析。结果显示,室内湍流仿真系统能够准确地模拟弱起伏条件下湍流对激光传输的影响。To investigate the influence of turbulence on the laser propagation through atmosphere,the simulation technology of the turbulence was analyzed.The numerical simulation technology for the turbulence on laser propagation in laboratory was introduced and turbulence simulation systems were also discussed.A detailed description and the comparison for Fast Fourier Transform（FFT） and Zernike polynomial methods of numerical simulation were offered and a turbulence simulation system was established by a static phase screen.The theoretical model and the simulation experiment were also performed,then energy intensity distribution of laser propagating in the tarbulence simulation system were studied.The results show that the system can simulate the weak fluctuation turbulence accuretely.

关 键 词：激光传输 湍流扰动 随机相位仿真 随机相位屏 

分 类 号：TN241[电子电信—物理电子学] TP391.9[自动化与计算机技术—计算机应用技术]