26 November 2012 The behavior of branch points in laser propagation through atmosphere
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Numerical experiments are carried out about the temporal and spatial variation of branch points by four-dimension code of laser propagating in atmosphere. The theory of branch-point detection and phase reconstruction is introduced. The act of branch points' creating and annihilating is emulated when the light wave propagating in atmosphere. The evolvement of branch points in some propagating range with time is emulated, too. The behavior of branch points in the distorted optical field is simulated when the main laser and beacon laser propagate in the atmosphere with opposite direction at the same time. The work could provide a reference for further study of laser propagation through atmosphere and adaptive optics system.
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Xiao-lu Ge, Xiao-lu Ge, Cheng-yu Fan, Cheng-yu Fan, Xiao-xing Feng, Xiao-xing Feng, Cheng-feng Li, Cheng-feng Li, Xiao-juan Liu, Xiao-juan Liu, Li-ping Guo, Li-ping Guo, Gong-xiang Wei, Gong-xiang Wei, } "The behavior of branch points in laser propagation through atmosphere", Proc. SPIE 8557, Optical Design and Testing V, 85570H (26 November 2012); doi: 10.1117/12.981963; https://doi.org/10.1117/12.981963

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