Performance analysis of dual-pump nonlinear amplifying loop mirror mode-locked all-fibre laser

We numerically characterise, in the three-dimensional space of adjustable cavity parameters, the performance of a recently reported layout of a flexible figure-8 laser having two independently pumped segments of active fibre in its bidirectional ring (Smirnov et al 2017 Opt. Lett. 42 1732-5). We show that this optimisation problem can be efficiently addressed by applying a regression model based on a neural-network algorithm.