TY - JOUR

T1 - Single-mode spatiotemporal soliton attractor in multimode GRIN fibers

AU - Zitelli, M.

AU - Ferraro, M.

AU - Mangini, F.

AU - Wabnitz, S.

N1 - Funding Information: Funding. European Research Council (740355 (STEMS), 874596); Ministero dell’Istruzione, dell’Università e della Ricerca (R18SPB8227); Ministry of Education and Science of the Russian Federation (14.Y26.31.0017). Funding Information: Acknowledgment. We thank Wright et al. for making freely available the open-source parallel numerical mode solver for the coupled-mode nonlinear Schrödinger equations [30], and Oleg Sidelnikov for developing a mode decomposition numerical code. We acknowledge the financial support from the European Research Council Advanced, the Italian Ministry of University and Research, and the Russian Ministry of Science and Education. Publisher Copyright: © 2021 Chinese Laser Press. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/5/1

Y1 - 2021/5/1

N2 - Experimental and numerical studies of spatiotemporal femtosecond soliton propagation over up to 1 km spans of parabolic graded-index fibers reveal that initial multimode soliton pulses naturally and irreversibly evolve into a single-mode soliton. This is carried by the fundamental mode of the fiber, which acts as a dynamical attractor of the multimode system for up to the record value (for multimode fibers) of 5600 chromatic dispersion distances. This experimental evidence invalidates the use of variational approaches, which intrinsically require that the initial multimode propagation of a self-imaging soliton is indefinitely maintained.

AB - Experimental and numerical studies of spatiotemporal femtosecond soliton propagation over up to 1 km spans of parabolic graded-index fibers reveal that initial multimode soliton pulses naturally and irreversibly evolve into a single-mode soliton. This is carried by the fundamental mode of the fiber, which acts as a dynamical attractor of the multimode system for up to the record value (for multimode fibers) of 5600 chromatic dispersion distances. This experimental evidence invalidates the use of variational approaches, which intrinsically require that the initial multimode propagation of a self-imaging soliton is indefinitely maintained.

UR - http://www.scopus.com/inward/record.url?scp=85105260155&partnerID=8YFLogxK

U2 - 10.1364/PRJ.419235

DO - 10.1364/PRJ.419235

M3 - Article

AN - SCOPUS:85105260155

VL - 9

SP - 741

EP - 748

JO - Photonics Research

JF - Photonics Research

SN - 2327-9125

IS - 5

ER -