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首页> 外文会议>Target Recognition and Artificial Intelligence Summit Forum;Society of Photo-Optical Instrumentation Engineers >Propagation Properties of Standard and Elegant Herimite-Gaussian Beams in Oceanic Turbulence
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Propagation Properties of Standard and Elegant Herimite-Gaussian Beams in Oceanic Turbulence

机译：标准和优雅的厄米-高斯光束在海洋湍流中的传播特性

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摘要

The analytical expressions of the M2-factor for laser beams propagating in oceanic turbulence are derived by usingthe extended Huygens-Fresnel principle and the definition of the second moment of the Wigner distributionfunction(WDF). Taking the standard Hermite-Gaussian (SHG) beams and elegant Hermite-Gaussian (EHG) beams astypical examples of laser beams, the propagation properities of the SHG beams and EHG beams in oceanic turbulenceare analyzed quantitatively. It is shown that in oceanic turbulence the M2-factor of SHG and EHG beams are differentexcept for beam order m=0 and m=1. At a given propagation distance, the relative M2-factor of SHG and EHG beams inturbulence monotonously decreases with increasing beam order. The relative M2-factor of SHG beams are less thanthose of EHG beams under the same condition, implying that turbulence influences SHG beams less than EHG beams.
机译：利用推导得出了海洋湍流中传播的激光M2因子的解析表达式。 扩展的惠更斯-菲涅耳原理和维格纳分布第二矩的定义 功能（WDF）。以标准的厄米-高斯（SHG）光束和优雅的厄米-高斯（EHG）光束为准 激光束的典型例子，SHG束和EHG束在海洋湍流中的传播特性 进行定量分析。结果表明，在海洋湍流中，SHG和EHG光束的M2因子不同 除了光束阶数m = 0和m = 1。在给定的传播距离下，SHG和EHG光束的相对M2因子在 湍流随光束阶数的增加而单调减小。 SHG光束的相对M2因子小于 在相同条件下，EHG光束的辐射强度比EHG光束高，这意味着湍流对SHG光束的影响要小于EHG光束。

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