Dark solitons in laser radiation build-up dynamics

Abstract

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 quasi-stationary 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.

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Cited by in corpus (4)

• Towards 'smart lasers': self-optimisation of an ultrafast pulse source using a genetic algorithm
• Dispersion engineering of mode-locked fibre lasers
• Mode-locked dysprosium fiber laser: picosecond pulse generation from 2.97 to 3.30 μm
• Gray/dark soliton behavior and population under a symmetric and asymmetric potential trap