In this study, an all-fiber±3-order orbital angular momentum (OAM) mode generator with∼
90% conversion efficiency is proposed and experimentally demonstrated. By using a helical …

In this paper, we have studied transmission of optical vortices (OVs) through ring resonators
(RRs) based on multimode fibres. Using the formalism of transfer matrix we have obtained in …

In this paper, we have theoretically studied transformations of higher-order modes and
angular momentum of light in the optical snake, a coil resonator composed of two …

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 …

We study the propagation of circularly-polarized optical vortices of higher order topological
charges ℓ≥ 2 in a sandwich of multihelical-anisotropic-multihelical fibers on the basis of the …

A recently proposed theoretical model of acousto-optic interaction in optical fibers with a
traveling flexural acoustic wave of the fundamental order [MA Yavorsky, et al., Opt. Lett. 44 …

We have studied the effect of strong coupling on the propagation of optical vortices (OVs)
and evolution of their orbital angular momentum (OAM) in parallel multimode optical fibers …

We study the structure of higher order modes in multihelicoidal optical fibers (MHFs) in the
presence of torsional mechanic stress (TMS). We show that at some values of pitch such …

In this paper, we theoretically study the transmission of optical vortices (OVs) through a
uniform N-turn coil of a multimode fiber. We suggest a scalar-approximation treatment based …

In this paper, we studied an effect of strong evanescent coupling on the structure of normal
modes in a system of parallel ideal multimode optical fibers. Using the formalism of the …