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Proceedings Paper

Reference beam lacking measurement of topological charge of incoming vortex beam
Author(s): Evgenii Fedorov; Kseniya Gavril'eva; Alina Gorelaya; Alexander Sevryugin; Ibrohim Tursunov; Dmitrii Venediktov; Vladimir Venediktov
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Paper Abstract

In this paper, the determination of the topological charge of the vortex beams by means of shearing interferometry was achieved, for both common and non-common path shearing interferometers, using simple yet effective optical elements. The recording and analysis of interference patterns from different setups was accomplished using: cyclic, rotational and reversal shearing interferometers. The use of cyclic and rotational shearing interferometers resulted in interference patterns with two oppositely oriented forks for both setups. However, with the reversal shearing interferometer, a single forked pattern was obtained and a mathematical approximation was deduced.

Paper Details

Date Published: 23 April 2019
PDF: 9 pages
Proc. SPIE 11030, Holography: Advances and Modern Trends VI, 1103002 (23 April 2019); doi: 10.1117/12.2521650
Show Author Affiliations
Evgenii Fedorov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Kseniya Gavril'eva, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Alina Gorelaya, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Alexander Sevryugin, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Ibrohim Tursunov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Dmitrii Venediktov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
Vladimir Venediktov, Saint Petersburg Electrotechnical Univ. "LETI" (Russian Federation)
ITMO Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 11030:
Holography: Advances and Modern Trends VI
Antonio Fimia; Miroslav Hrabovský; John T. Sheridan, Editor(s)

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