Abstract

The 2.09-μ Ho:YAG 5I75I8 laser transition is intracavity pumped by a Tm:YAG laser. Separate Tm:YAG and Ho:YAG crystals share a single laser cavity, the Tm:YAG crystal is pumped at 785 nm, and the resulting 2.01-μm Tm3+ laser emission pumps the Ho:YAG crystal. The slope efficiency of the 2.09-μm Ho3+ laser output is 42% of the absorbed 785-nm pump power.

© 1992 Optical Society of America

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