Room temperature, pulsed laser actions at 2.4µm based on the 3H4-3H5 transition in 1.5% Tm:YLF, 1.5% Tm:YAG and 2.0% Tm:LuAG crystals have been achieved. The experimental data are compared with modeled results. Output energies of more than 1mJ have been obtained for each crystals.
V. Sudesh and J. A. Piper, "Mid-infrared Tm3+ 4-level lasers in a variety of crystals: model and experiment," in Advanced Solid State Lasers, M. Fejer, H. Injeyan, and U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper MB7.
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