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All-fiber SWAP-CNOT gate for optical vortices
E.V. Barshak 1, B.P. Lapin 1, D.V. Vikulin 1, S.S. Alieva 1, C.N. Alexeyev 1, M.A. Yavorsky 1

1 V. I. Vernadsky Crimean Federal University

 PDF, 924 kB

DOI: 10.18287/2412-6179-CO-938

Pages: 853-859.

Full text of article: Russian language.

Abstract:
We study the propagation of optical vortices in a system which consists of a tandem of a multi-helical and twisted anisotropic fiber. We show that at certain resonance regimes of the optical fibers such a system allows one to control sign flipping of the topological charge and the circular polarization of the input optical vortex. Moreover, parameters of the multihelical and the twisted anisotropic fibers are established for the implementation of a logical operation that corresponds to the sequential executing of two fundamental SWAP and CNOT gates over the states of circularly polarized optical vortices.

Keywords:
optical vortices, orbital angular momentum, logic gates, anisotropic optical fibers, birefringence, fiber optics.

Citation:
Barshak EV, Lapin BP, Vikulin DV, Alieva SS, Alexeyev CN, Yavorsky MA. All-fiber SWAP-CNOT gate for optical vortices. Computer Optics 2021; 45(6): 853-859. DOI: 10.18287/2412-6179-CO-938.

Acknowledgements:
This work was financially supported by the Russian Foundation for Basic Research (Project No. 20-47-910001).

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