相位扩散器动力学对地球大气中Laser辐射闪烁的影响:远距离传输
Influence of Phase Diffuser Dynamics on Scintillations of Laser Radiation in Earth Atmosphere: Long-Distance Propagation
摘要:
本文研究了随机位相扩散器对激光涨落的影响。不仅空间,而且时间的相位变化所引入的相位扩散器进行了分析。对于长的传播路径,闪烁指数对有限时间相位变化的显式依赖。结果表明,对于较大幅度的相位起伏,有限时间效应降低了相位扩散器抑制振荡的能力。
英文摘要:
The effect of a random phase diffuser on fluctuations of laser light (scintillations) is studied. Not only spatial but also temporal phase variations introduced by the phase diffuser are analyzed. The explicit dependence of the scintillation index on finite-time phase variations is obtained for long propagation paths. It is shown that for large amplitudes of phase fluctuations, a finite-time effect decreases the ability of phase diffuser to suppress the scintillations.
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