Abstract

We report on a 1.645 μm single longitudinal mode Er:YAG laser that was resonantly pumped by a 1.532 μm fiber laser, using intracavity etalons to generate single longitudinal mode operation. We obtained 0.749 W single longitudinal mode output power at 1.645 μm from an Er:YAG laser with two intracavity etalons. The M2-factors of the Er:YAG laser were 1.041 and 1.068 in the x and y directions, respectively.

© 2012 Optical Society of America

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