Abstract

We report the first diode-pumped, continuous-wave cascaded dual-wavelength operation of an Er3+:YAG cryogenic laser emitting simultaneously at mid-IR 2.7 and eye-safe 1.6 μm. The laser is capable of delivering 45 and 10 W at 1.62 and 2.73 μm wavelength, with slope efficiencies 15% and 55%, respectively. The overall efficiency with respect to the absorbed 960  nm pump power was 71%. Detailed analysis of the output power, efficiency, wavelengths, and relevant spectroscopic data is also presented.

© 2016 Optical Society of America

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