An Experimentally Validated Discrete Model for Dispersion-Tuned Actively Mode-Locked Lasers

In this paper, we present a new discrete model describing the steady-state characteristics of dispersion-tuned actively mode-locked fiber lasers pulses after each component in the cavity. The model was developed to perfect the design and further the knowledge of the capabilities of such lasers. The discrete model is compared to the traditional average model that is shown to be a limit case of the former. Several laser cavities were then built, with laser parameters changing over 4 order of magnitudes, in order to validate both models with experimental data. Both models show excellent agreement with the experimental data. Design considerations and limitations are then discussed in the light of this new model.