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Vortex beam as a positioning tool
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DOI：10.1364/OE.462475.png)
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Abstract
En 中文
Remote positioning by precise measurements of lateral displacements of laser beams at large distances is inevitably disturbed by the influence of atmospheric turbulences. Here we propose the use of optical vortices, which exhibit lower transversal variations at an experimentally validated range of 100 meters. We show the higher precision of the localization of vortex points as compared with standard centroid-based assessment of Gaussian beams. Numerical simulations and experimental measurements show further improvements by averaging of the positions of up to four secondary vortices forming a stable constellation when higher values of the topological charges are used. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
Keywords:
OPTICAL VORTEX
VORTICES
TRANSFORMATION
PROPAGATION
METROLOGY
LIGHT
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W