Highly efficient room-temperature operation of an Er:YAG laser end-pumped by a high-power cladding-pumped tunable Er,Yb fiber laser operating at 1532 nm is reported. Using a simple four-mirror folded-resonator configuration, we obtained > 60W of continuous-wave output at 1645nm for 82W of incident pump power. The corresponding slope efficiency was 80.7%.
© 2005 Optical Society of America
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
D. Y. Shen, P. J. Jander, J. K. Sahu, and W. A. Clarkson, "High-Power and Ultra-Efficient Operation of 1645 nm Er:YAG laser pumped by a 100W tunable Er,Yb fiber laser," in Advanced Solid-State Photonics (TOPS), C. Denman and I. Sorokina, eds., Vol. 98 of OSA Trends in Optics and Photonics (Optical Society of America, 2005), paper 618.
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