Experimental Study of Solar Pumped Laser for Magnesium‐Hydrogen Energy Cycle

This paper describes the initial experiments on solar pumped laser which is intended to be used as an energy converter for a new reusable energy cycle. Research has been conducted with the use of devices and elements which are compatible with industrial production. Frasnel lens and Chromium ion co‐doped Nd:YAG ceramic laser media have been employed for the lasing demonstration of a solar pumped laser system for the first time. Basic properties of the system such as solar power concentration for lasing threshold and enhancements of pumping efficiency have been experimentally measured.