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Wave optics simulation of pseudo-partially coherent beam propagation through turbulence: application to laser communications

机译:伪部分相干光束通过湍流传播的波光学模拟:在激光通信中的应用

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It is known that partially (spatial) coherent beams can reduce the effects of scintillation in a free space optical link. However, practical implementations of this type of beam are still under investigation. In this work we apply a wave optics model to analyze the propagation through turbulence of a coherent beam and a particular version of a pseudo-partially coherent beam. The beam we study is created with a sequence of five Gaussian random phase screens for each atmospheric realization. We examine the average intensity profiles, the scintillation index and aperture averaging factor for a horizontal propagation scenario. We find this pseudo-partially coherent beam behaves much like a Gaussian Schell-model beam.
机译:众所周知,部分(空间)相干光束可以减少自由空间光链路中闪烁的影响。但是,这种光束的实际实现仍在研究中。在这项工作中,我们应用波光学模型来分析相干光束和特定版本的伪部分相干光束的湍流传播。我们研究的光束是由五个高斯随机相位屏幕序列构成的,用于每个大气实现。我们检查了水平传播场景的平均强度分布,闪烁指数和孔径平均因子。我们发现该伪局部相干光束的行为与高斯谢尔模型光束非常相似。

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