Solar Pumped Lasers: High-Efficiency Multi-Pass Side Pumping Scheme with Fresnel Lens
А.А. SherniyozovInstitute of Ion-Plasma and Laser Technologies of Uzbekistan Academy of Sciences, 100125, Tashkent, UzbekistanSh. PayziyevInstitute of Ion-Plasma and Laser Technologies of Uzbekistan Academy of Sciences, 100125, Tashkent, Uzbekistan
ABI
Abstract
A multi-pass side-pumping scheme for solar pumped Nd:YAG laser on 1 m diameter Fresnel lens is numerically analyzed. Using of the Monte Carlo photon-tracing numerical method, three different pumping schemes were studied. The results showed that a large efficiency improvement in a multi-pass side-pumping scheme compared to the double-pass side-pumping scheme. The study demonstrated that the multi-pass side-pumping scheme can double the overall efficiency of solar double-pass side-pumped Nd:YAG laser.