Abstract
Gallium garnet crystals, with the chemical formula RE3Ga5O12 (REGG) where RE = Gd, Y or Lu [1], are desirable host materials for trivalent rare-earth active ions such as Nd3+, Yb3+, Er3+, etc., owing to their superior chemical, mechanical, and thermal properties. Nowadays, Yb-doped REGG has emerged as the most widely popular host crystal, particularly for the manufacturing of high-power and high-energy solid-state lasers. In comparison with GGG or YGG, LuGG crystal seems to be more adequate as a host medium for Yb ion, due to the closer proximity of Lu and Yb elements in both ionic radius and atomic mass. Consequently, more attention deserves to be devoted to the Yb: LuGG crystal.
© 2023 IEEE
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