One of key problems in directly solar pumped solid-state lasers is thermal management. It can significantly degrade solar laser output characteristic.
In this respect, we investigated the potential of composite active media to optimize absorption distribution using simulation models in end-side pumped solar powered lasers. For the first time, we developed a simulation model of solarpumped lasers incorporating a composite active medium in the form of Nd:YAG/YAG in radial direction. The simulation results indicate that the composite structure significantly redistributes the absorption profile, showing its potential to alleviate thermal load issues and improve overall thermal management.