Double-periodic pulsating solitons in 2.8 μm mid-infrared fiber laser

Yuhe Dong, Wentao Liang, Xusheng Xiao, Yang Xiao, Wentao He, Shimin Chen, Lihe Yan and Haitao Guo

Chaos, Solitons & Fractals, 2025, vol. 199, issue P2

Abstract: This study systematically investigates double-periodic pulsating solitons in mid-infrared ultrafast fiber lasers based on the complex Ginzburg-Landau equation. By adjusting the pump power in a 2.8 μm Er3+-doped fluoride mode-locked fiber laser, we demonstrate the transitions from single-pulse steady operation to pulsating solitons, two-soliton bound-state, and ultimately three- and four-soliton molecular numerically. We observed several double-periodic pulsating solitons with short periods of 13, 9, 4, 11, 7, 10, and 3 and long periods of 425, 86, 105, 216, 648, 823, and 90, respectively. These solitons exhibit hybrid dynamics characterized by the coexistence of both short- and long-period pulsation features. Furthermore, we analyzed double-periodic pulsating solitons with a short period of 3. Within a specific range of increasing pump power, these solitons maintained a constant short period while exhibiting an increase in their long period. Compared to the Yb3+-, Er3+-, and Tm3+-doped silica fibers used in near-infrared fiber lasers, the Er3+-doped fluoride fiber employed in 2.8 μm mid-infrared fiber lasers exhibits a smaller nonlinear coefficient and weaker nonlinear effects, with distinct higher-order nonlinear characteristics in theoretical modeling. Therefore, this paper presents the first theoretical investigation of double-periodic pulsating soliton dynamics in mid-infrared fiber lasers. These findings deepen the understanding of pulse nonlinear dynamics in anomalous-dispersion-dominated systems and offer novel insights for optimizing pulses in mid-infrared ultrafast lasers, with potential applications in molecular spectroscopy and precision material processing.

Keywords: Mid-infrared; Double-periodic pulsating solitons; Fiber laser; Mode-locked (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0960077925007829
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:199:y:2025:i:p2:s0960077925007829

DOI: 10.1016/j.chaos.2025.116769

Access Statistics for this article

Chaos, Solitons & Fractals is currently edited by Stefano Boccaletti and Stelios Bekiros

More articles in Chaos, Solitons & Fractals from Elsevier
Bibliographic data for series maintained by Thayer, Thomas R. ().