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Comparison of Accuracy in the Determination of Optical Vortex Coordinates by Different Methods

  • COMPUTATIONAL AND DATA ACQUISITION SYSTEMS
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Optoelectronics, Instrumentation and Data Processing Aims and scope

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.

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Funding

This work was carried out within the framework of Project II.10.3.5 ‘‘Development of Methods and Systems of Adaptive Correction for the Formation of Coherent Beams and Optical Images in the Atmosphere’’ (registration no. AAAA-A17-117021310146-3).

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Authors and Affiliations

  1. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, 634055, Tomsk, Russia

    F. Yu. Kanev, V. P. Aksenov, N. A. Makenova & I. D. Veretekhin

  2. National Research Tomsk Polytechnic University, 634050, Tomsk, Russia

    N. A. Makenova

  3. National Research Tomsk State University, 634050, Tomsk, Russia

    I. D. Veretekhin

Authors
  1. F. Yu. Kanev
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  2. V. P. Aksenov
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  3. N. A. Makenova
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  4. I. D. Veretekhin
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Corresponding author

Correspondence to N. A. Makenova.

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Kanev, F.Y., Aksenov, V.P., Makenova, N.A. et al. Comparison of Accuracy in the Determination of Optical Vortex Coordinates by Different Methods. Optoelectron.Instrument.Proc. 56, 221–227 (2020). https://doi.org/10.3103/S8756699020030061

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  • DOI: https://doi.org/10.3103/S8756699020030061

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