Average intensity and spreading of an elliptical gaussian beam propagating in a turbulent atmosphere.
Average intensity and spreading of an elliptical gaussian beam propagating in a turbulent atmosphere.
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DOI：
10.1364/ol.31.000568
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发表时间：
2006-03
期刊：
影响因子：
3.6
通讯作者：
Y. Cai;Sailing He
中科院分区：
文献类型：
--
作者：
Y. Cai;Sailing He
推导了椭圆高斯光束在湍流大气中传输的平均光强的解析表达式。研究了湍流大气中EGB的传播特性。结果表明，在湍流大气中，EGB光束最终将变为圆高斯光束。这种有趣的现象与EGB在自由空间中的传播完全不同。其演化特性与光束参数和湍流大气密切相关。
An analytical formula for the average intensity of an elliptical Gaussian beam (EGB) propagating in a turbulent atmosphere is derived. The spreading properties of an EGB in a turbulent atmosphere are studied. It is found that an EGB will eventually become a circular Gaussian beam in a turbulent atmosphere. This interesting phenomenon is quite different from the propagation of an EGB in free space. The evolution properties are closely related to the parameters of the beam and the turbulent atmosphere.