Propagation of optical vortices in an add-drop resonator based on a vertical array of ring resonators by B.P. Lapin, E.V. Barshak, M.A. Yavorsky, C.N. Alexeyev

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Dispersion of optical vortices in twisted elliptical-core optical fibers with torsional stresses by B.P. Lapin, E.V. Barshak, D.V. Vikulin, C.N. Alexeyev, M.A. Yavorsky

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