Boutaka, RabehLiang, DaweiBouadjemine, RochdiHendaoui, Nordine2025-02-192025-02-192024-11-011842-6573PURE: 105498659PURE UUID: e444925a-2072-47eb-899f-f663cf9547b1Scopus: 85212589091WOS: 001380756800004http://hdl.handle.net/10362/179369Funding Information: Financial support for the Strategic Project UID/FIS/00068/2020 of the Science and Technology Foundation of Portuguese Ministry of Science, Technology, and Higher Education (FCT MCTES) is gratefully acknowledged. Financial support for the Project 32/CDTA/DGRSDT/2019 of the Directorate-General for Scientific Research and Technological Development (DGRSDT) of Algerian Ministry of Higher Education and Scientific Research is gratefully acknowledged. Publisher Copyright: © 2024, National Institute of Optoelectronics. All rights reserved.In this paper, we report a numerical study of high power Nd:YAG solar laser approach pumped through off-axis parabolic concentrators. Six off-axis parabolic mirrors with 15 m² total collection area were used to collect and focus the solar energy towards six 2V-shaped pump cavities, within which a 120 mm length, 7.5 mm diameter Nd:YAG laser crystal was transversally pumped. Six fused-silica lenses were also employed to efficiently couple the concentrated solar power with a laser rod. All pumping parameters of the laser design were optimized using the ZEMAX© non sequential ray-tracing method. The laser resonant cavity and its performance were analyzed by LASCAD© software. A maximum continuous-wave 1064 nm laser power of 646 W was numerically achieved in the multimode operation with high collection efficiency of 43.06 W/mm² and very small beam spot size. To the best of our knowledge, this is the highest laser output power from a single beam/single rod Nd:YAG solar laser scheme, which is more than 5 times that of the previous most powerful Nd:YAG solar laser. Moreover, the laser intensity at the focal plane was 2.85x106 W/cm2, which can produce magnesium energy more than 14 times over the existing experimental works for laser-induced magnesium production.9699576engLASCAD analysisNd:YAGOff-axis concentratorsSolar energy pumpingSolid-state laserZEMAX optimizationElectronic, Optical and Magnetic MaterialsElectrical and Electronic EngineeringSDG 7 - Affordable and Clean Energyjournal articlehttps://www.scopus.com/pages/publications/85212589091https://oam-rc.inoe.ro/articles/design-of-high-power-ndyag-solar-laser-pumped-with-off-axis-parabolic-concentrators/