摘要We report a 22.3 W cw diode-pumped cryogenic Ho(0.5at.%),Tm(at.5%):GdVO4 laser at a wavelength of 2.05 µm. It is pumped by two fiber−coupled laser diodes with a fiber core diameter of 0.4 mm, both of which provide 42 W pump power near 802 nm. A cw output power of 22.3 W was obtained at the pump power of 51.0 W, corresponding to an optical-to-optical conversion efficiency of 43.7% when the ratio of the pump beam to oscillating laser beam in the crystal was ∼1.33:1. The M2 factor was found to be 2.0 under an output power of 16.5 W.
Abstract：We report a 22.3 W cw diode-pumped cryogenic Ho(0.5at.%),Tm(at.5%):GdVO4 laser at a wavelength of 2.05 µm. It is pumped by two fiber−coupled laser diodes with a fiber core diameter of 0.4 mm, both of which provide 42 W pump power near 802 nm. A cw output power of 22.3 W was obtained at the pump power of 51.0 W, corresponding to an optical-to-optical conversion efficiency of 43.7% when the ratio of the pump beam to oscillating laser beam in the crystal was ∼1.33:1. The M2 factor was found to be 2.0 under an output power of 16.5 W.
WANG Yue-Zhu;ZHU Guo-Li**;JU You-Lun;YAO Bao-Quan
. Efficient High Power Ho,Tm:GdVO4 Laser[J]. 中国物理快报, 2011, 28(9): 94211-094211.
WANG Yue-Zhu, ZHU Guo-Li**, JU You-Lun, YAO Bao-Quan
. Efficient High Power Ho,Tm:GdVO4 Laser. Chin. Phys. Lett., 2011, 28(9): 94211-094211.
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2011, Vol. 28 
