Spatiotemporal solitons in dispersion-managed multimode fibers

Thawatchai Mayteevarunyoo, Boris A. Malomed, Dmitry Skryabin

Research output: Contribution to journalArticlepeer-review

Abstract



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 $ S\lt S_{0}\approx 0.93$, and completely stable at $S\gt S_{0}$. 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.
Original languageEnglish
Article number015501
JournalJournal of Optics
Volume23
Issue number1
Early online date11 Dec 2020
DOIs
Publication statusPublished - 31 Jan 2021

Cite this