Theoretical Study of a Nd: YAG Solar Laser with 2.5% Efficiency

Abstract

This study explores the direct conversion of sunlight into laser light using a neodymium-doped yttrium aluminum garnet (Nd:YAG) crystal as the active medium. A side-pumping technique was employed, and a theoretical Nd:YAG model was developed to assess the influence of key parameters on solar laser performance. The results indicate that the Nd:YAG medium achieved a laser gain of 4% and a conversion efficiency of 2.5%. These findings align with previous studies, validating the proposed model and confirming the feasibility of solar-pumped lasers as a sustainable energy source.