【摘 要】
：
基于Rytov方法并采用von-Karman模型对艾里光束的光强闪烁进行了分析。根据接收器接收面上光强度分布不均匀的现象,提出了艾里光束的面光强闪烁模型,推导了艾里光束在大气湍
【机 构】
：
长春理工大学光电工程学院,长春理工大学光电工程学院微纳光学制造实验室,
论文部分内容阅读
基于Rytov方法并采用von-Karman模型对艾里光束的光强闪烁进行了分析。根据接收器接收面上光强度分布不均匀的现象,提出了艾里光束的面光强闪烁模型,推导了艾里光束在大气湍流中的面光强闪烁的表达式。数值仿真结果表明:当光束宽度一定时,相同光束传播距离下指数截断因子越小,光强闪烁越小;当传播距离为3km、指数截断因子为0.2时,艾里光束的宽度约为1.6cm,光强闪烁最小。此外,光源强度和接收光强相同时,将艾里光束与高斯光束进行了对比,发现艾里光束的光强闪烁小于高斯光束的光强闪烁。
Based on the Rytov method and using the von-Karman model, the intensity of Blinking in the Airy beam is analyzed. According to the uneven distribution of light intensity on the receiving surface of the receiver, the model of air blinking of Airy beam was proposed, and the expression of air blinking in air turbulence was derived. Numerical simulation results show that when the beam width is constant, the smaller the exponential cutoff factor at the same beam propagation distance, the smaller the light intensity flicker. When the propagation distance is 3km and the exponential cutoff factor is 0.2, the width of Airy beam is about 1.6cm , Light intensity flashing the smallest. In addition, when the light intensity and receiving light intensity are the same, the comparison of Airy beam with Gaussian beam shows that the intensity of Airy beam is flicker less than the intensity of Gaussian beam.
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