Abstract
Solar-pumped Nd:YAG lasers are a promising renewable energy source for applications including the magnesium-hydrogen energy cycle, power beaming and satellite technologies [1].The major issue that limits the performance of these lasers is the weak absorption of solar radiation due to the low overlap between the solar spectrum and the Nd:YAG absorption spectrum. The symmetry and homogeneity of this absorption are also important for beam quality. Current pumping schemes usually use complex, numerically optimised rod-in-trough, or rod-in-cone secondary concentrators, each having advantages and disadvantages [1-4].
© 2017 IEEE
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