Spatiotemporal solitons in dispersion-managed multimode fibers

Autor: Dmitry V. Skryabin, Thawatchai Mayteevarunyoo, Boris A. Malomed
Rok vydání: 2020
Předmět:
Zdroj: Mayteevarunyoo, T, Malomed, B A & Skryabin, D 2021, ' Spatiotemporal solitons in dispersion-managed multimode fibers ', Journal of Optics, vol. 23, no. 1, 015501 . https://doi.org/10.1088/2040-8986/abcc57
DOI: 10.48550/arxiv.2011.04934
Popis: We develop the scheme of dispersion management (DM) for three-dimensional (3D) solitons in a multimode optical fiber. It is modeled by the parabolic confining potential acting in the transverse plane in combination with the cubic self-focusing. The DM map is adopted in the form of alternating segments with anomalous and normal group-velocity dispersion. Previously, temporal DM solitons were studied in detail in single-mode fibers, and some solutions for 2D spatiotemporal "light bullets", stabilized by DM, were found in the model of a planar waveguide. By means of numerical methods, we demonstrate that stability of the 3D spatiotemporal solitons is determined by the usual DM-strength parameter, $S$: they are quasi-stable at $ SS_{0}$. Stable vortex solitons are constructed too. We also consider collisions between the 3D solitons, in both axial and transverse directions. The interactions are quasi-elastic, including periodic collisions between solitons which perform shuttle motion in the transverse plane.
Comment: 15 pages, 13 figures, to be published in Journal of Optics
Databáze: OpenAIRE