Abstract

We report a room temperature (RT) operation of a Fe:CdTe laser pumped by a Q-switched 2.94 μm Er:Y3Al2(AlO4)3 laser. The Fe:CdTe laser produced 2 mJ of output energy at λ=5.55μm with slope efficiency of 16% with respect to absorbed pump energy. With the use of an intracavity prism, the spectral tuning was demonstrated in the 5.1–6.3 μm range, being the longest wavelength tuning achieved for Fe2+:IIVI lasers. The lifetime of the upper laser level was measured to be 530 ns at RT.

© 2019 Optical Society of America

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