Abstract

Broadly tunable cw laser emission is reported in Tm:YAG and Tm:YSGG at room temperature with Ti:sapphire laser pumping. The Tm3+3F43H6 transition is tuned continuously over the ranges 1.87–2.16 μm in YAG and 1.85–2.14 μm in YSGG. Smooth tuning results from overlapping transitions between phonon-broadened crystal field Stark levels.

© 1990 Optical Society of America

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