Abstract
We report on a highly efficient polycrystalline Tm:YAG ceramic laser in-band pumped by an Er:YAG laser at . Lasing characteristics of 4.0 and -doped YAG ceramics were investigated and compared. With an output coupler of 10% transmission, a maximum output power of was obtained at under of incident pump power, corresponding to a slope efficiency with respect to incident pump power of 62.3%.
© 2011 Optical Society of America
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