Multimode soliton collisions in graded-index optical fibers

Year: 2022

Authors: Sun Y., Zitelli M., Ferraro M., Mangini F., Parra-Rivas P., Wabnitz S.

Autors Affiliation: Department of Information Engineering, Electronics and Telecommunications, Sapienza University of Rome, Via Eudossiana 18, Rome, 00184, Italy; CNR-INO, Istituto Nazionale di Ottica, Via Campi Flegrei 34, Pozzuoli, 80078, Italy

Abstract: In this work, we unveil the unique complex dynamics of multimode soliton interactions in graded-index optical fibers through simulations and experiments. By generating two multimode solitons from the fission of an input femtosecond pulse, we examine the evolution of their Raman-induced red-shift when the input pulse energy grows larger. Remarkably, we find that the output red-shift of the trailing multimode soliton may be reduced, so that it accelerates until it collides with the leading multimode soliton. As a result of the inelastic collision, a significant energy transfer occurs between the two multimode solitons: the trailing soliton captures energy from the leading soliton, which ultimately enhances its red-shift, thus increasing temporal separation between the two multimode solitons.

Journal/Review: OPTICS EXPRESS

Volume: 30 (12)      Pages from: 21710  to: 21724

More Information: H2020 European Research Council (740355); H2020 Marie Sklodowska-Curie Actions (101023717); Ministero dell´Istruzione, dell´Universita e della Ricerca (R18SPB8227); Sapienza Universita di Roma (AR22117A8AFEF609, AR22117A7B01A2EB).
KeyWords: self-frequency shift; dynamics
DOI: 10.1364/OE.459447

Citations: 9
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-07-07
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