A high power CW Ho,Tm:GdVO4 laser |
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| Authors: | G. L. Zhu Y. L. Ju B. Q. Yao Y. Z. Wang |
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| Affiliation: | 1.National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin,China |
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| Abstract: | In this paper, we report a 22.7 W continuous wave (CW) diode-pumped cryogenic Ho( at %), Tm(3 at %):GdVO4 laser. The pumping sources of Ho,Tm:GdVO4 laser are two fiber-coupled laser diodes with fiber core diameter of 0.4 mm, both of them can supply 42 W power laser operating near 802 nm. For input pump power of 64.7 W at 802.5 nm, the output power of 22.7 W in CW operation, optical-to-optical conversion efficiency of 35.1% at 2.05 μm has been attained. The M 2 factor was found to be 2.0 under an output power of 16.5 W. |
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