Dark solitons in laser radiation build-up dynamics

R. I. Woodward*, Edmund J. R. Kelleher

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


We reveal the existence of slowly decaying dark solitons in the radiation build-up dynamics of bright pulses in all-normal dispersion mode-locked fiber lasers, numerically modeled in the framework of a generalized nonlinear Schrödinger equation. The evolution of noise perturbations to quasistationary dark solitons is examined, and the significance of background shape and soliton-soliton collisions on the eventual soliton decay is established. We demonstrate the role of a restoring force in extending soliton interactions in conservative systems to include the effects of dissipation, as encountered in laser cavities, and generalize our observations to other nonlinear systems.

Original languageEnglish
Article number032221
Pages (from-to)032221-1-032221-7
Number of pages7
JournalPhysical Review E
Issue number3
Publication statusPublished - 29 Mar 2016
Externally publishedYes


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