Reference beam lacking measurement of topological charge of incoming vortex beam

Evgenii Fedorov; Kseniya Gavril'eva; Alina Gorelaya; Alexander Sevryugin; Ibrohim Tursunov; Dmitrii Venediktov; Vladimir Venediktov

doi:10.1117/12.2521650

23 April 2019 Reference beam lacking measurement of topological charge of incoming vortex beam

Evgenii Fedorov, Kseniya Gavril'eva, Alina Gorelaya, Alexander Sevryugin, Ibrohim Tursunov, Dmitrii Venediktov, Vladimir Venediktov

Author Affiliations +

Proceedings Volume 11030, Holography: Advances and Modern Trends VI; 1103002 (2019) https://doi.org/10.1117/12.2521650
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

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.

Citation Download Citation

Evgenii Fedorov, Kseniya Gavril'eva, Alina Gorelaya, Alexander Sevryugin, Ibrohim Tursunov, Dmitrii Venediktov, and Vladimir Venediktov "Reference beam lacking measurement of topological charge of incoming vortex beam", Proc. SPIE 11030, Holography: Advances and Modern Trends VI, 1103002 (23 April 2019); https://doi.org/10.1117/12.2521650

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