Abstract

Two algorithms for the determination of optical vortex coordinates are considered. In the first one, the vortex is found by branching of interference pattern fringes; in the second one, as a result of processing of the wavefront gradient distribution. It is shown that both algorithms allow one to record the coordinates with a high accuracy; in addition, it is possible to determine shifts of singular points appearing as a result of radiation diffraction.

中文翻译：

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不同方法确定旋涡坐标的精度比较

摘要

考虑了两种确定光学涡旋坐标的算法。在第一个中，涡旋是通过干涉图条纹的分支而发现的。在第二个中，作为波前梯度分布的处理结果。结果表明，两种算法都可以使人高精度地记录坐标。另外，可以确定由于放射衍射而出现的奇异点的偏移。