Structured light transformations and orbital angular momentum control in a three-coil optical snake

IF 1.1 Q4 OPTICS Computer Optics Pub Date : 2022-10-01 DOI:10.18287/2412-6179-co-1121
C. Alexeyev, S. Aliyeva, E. Barshak, B. Lapin, M.A. Yavorsrky
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Abstract

In this paper, we studied transformations of structured light and its angular momentum in a three-coil optical snake – a coil resonator composed of 3 evanescently uniformly coupled coils of a multimode fiber. We have suggested a fully vectorial theory of normal modes of the 3-coil resona-tor, which takes account of the spin-orbit interaction. On the basis of the analytical expressions for such normal modes and their propagation constants we have studied transmission of some types of structured light beams – optical vortices, Hermite-Gaussian-like and Laguerre-Gaussian beams – through such a system. We have shown the possibility of a super-efficient parametric control over the topological charge, orbital and spin angular momenta of the outcoming optical field by this system. We have theoretically demonstrated implementation of logic X and Y Pauli gates for light beams carrying orbital angular momentum on the basis of such a 3-coil resonator.
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三线圈光学蛇的结构光变换和轨道角动量控制
本文研究了结构光及其角动量在由3个倏逝均匀耦合的多模光纤线圈组成的三圈光蛇谐振器中的变换。我们提出了考虑自旋轨道相互作用的3圈谐振子正模的全矢量理论。在这些正模的解析表达式及其传播常数的基础上,我们研究了一些类型的结构光束——光旋涡、类厄米-高斯光束和拉盖尔-高斯光束——通过这种系统的传输。我们已经证明了该系统对输出光场的拓扑电荷、轨道角动量和自旋角动量进行超高效参数控制的可能性。我们已经从理论上证明了在这样一个3圈谐振器的基础上,对携带轨道角动量的光束的逻辑X和Y泡利门的实现。
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来源期刊
Computer Optics
Computer Optics OPTICS-
CiteScore
4.20
自引率
10.00%
发文量
73
审稿时长
9 weeks
期刊介绍: The journal is intended for researchers and specialists active in the following research areas: Diffractive Optics; Information Optical Technology; Nanophotonics and Optics of Nanostructures; Image Analysis & Understanding; Information Coding & Security; Earth Remote Sensing Technologies; Hyperspectral Data Analysis; Numerical Methods for Optics and Image Processing; Intelligent Video Analysis. The journal "Computer Optics" has been published since 1987. Published 6 issues per year.
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