Collision dynamics of co-propagating solitons in mode-locked fibre laser with net-anomalous dispersion

Igor Kudelin*

*Corresponding author for this work

    Research output: Contribution to journalConference articlepeer-review


    Nowadays, real-time measurements of complex dynamics of ultrashort structures in dissipative nonlinear systems have attracted a lot of interest. In this work, we present experimentally obtained real-time dynamics of two closely-separated solitons in a mode-locked erbium fibre laser. Both solitons experienced strong temporal vibrations due to mutual attractive and repulsive forces, alongside with oscillation in their energies. We experimentally demonstrate the influence of the dispersive waves (DWs) on the dynamics of the soliton complex. Eventually, the pulses experienced a collision dynamics that resulted in the formation of a single soliton at a shifted central wavelength with highly energetic Kelly sidebands and increased background radiation. Our experimentally obtained results prove the theoretical works on soliton interaction and enrich the knowledge on the complexities of ultrashort coherent features and their behaviour in nonlinear systems.

    Original languageEnglish
    Article number116710C
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 5 Mar 2021
    EventReal-time Measurements, Rogue Phenomena, and Single-Shot Applications VI 2021 - Virtual, Online, United States
    Duration: 6 Mar 202111 Mar 2021

    Bibliographical note

    © 2021 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


    • Bound solitons
    • Dispersive Fourier Transform
    • Dispersive waves
    • Mode-locked fibre laser
    • Soliton molecule


    Dive into the research topics of 'Collision dynamics of co-propagating solitons in mode-locked fibre laser with net-anomalous dispersion'. Together they form a unique fingerprint.

    Cite this