Impact of unintentional external feedback on the performance of high-power tapered lasers

This work presents results of modeling the impact of unintentional optical feedback on the performance of high-brightness DBR tapered laser. The simulations are performed with our external cavity laser modelling tool consisting of a 2.5D laser simulation tool coherently coupled to commercial ray tracing software. We consider the impact of the unintentional feedback on the output power, efficiency and beam quality.