Abstract

We report on a highly efficient polycrystalline Tm:YAG ceramic laser in-band pumped by an Er:YAG laser at 1617nm. Lasing characteristics of 4.0 and 6.0  at.% Tm3+-doped YAG ceramics were investigated and compared. With an output coupler of 10% transmission, a maximum output power of 7.3W was obtained at 2015nm under 12.8W 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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