Solar-pumped solid-state lasers
- 1 June 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 24 (6) , 1222-1228
- https://doi.org/10.1109/3.247
Abstract
Results are presented for direct solar pumping of a Nd:YAG rod laser. Stable CW output of more than 60 W was obtained with a slope efficiency exceeding 2%. A compound parabolic concentrator, designed to increase the solar radiation coupled into the laser rod, was used in these experiments. The results are consistent with predictions based on a single solar-pumped laser model, which is also presented. Using this model, it is shown that existing laser materials with broadband absorption characteristics (e.g. alexandrite and Nd:Cr:GSGG) have a potential for better than 10% overall conversion efficiency when solar-pumped.Keywords
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