2011/04/13 by Olga V. Borovkova, Valery E. Lobanov, Yaroslav V. Kartashov +1
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Gravitational singularity #Nonlinear Photonic Systems #Nonlinear optics #Nonlinear system #Optical Network Technologies #Optical vortex #Phase (matter) #Rotation (mathematics) #Self-phase modulation #Vortex #nlin.PS #physics.optics
paper · pdf · doi:10.1364/ol.36.001936
published as Optics Letters 36, 1936 (2011) · 3 pages, 4 figures, to appear in Optics Letters
arxiv created 2011/04/13 · openalex publication_date 2011/05/15 · arxiv updated 2016/04/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We show that ringlike localized gain landscapes imprinted in focusing cubic (Kerr) nonlinear media with strong two-photon absorption support new types of stable higher-order vortex solitons containing multiple phase singularities nested inside a single core. The phase singularities are found to rotate around the center of the gain landscape, with the rotation period being determined by the strength of the gain and the nonlinear absorption.