Efficient upconversion pumping at 1.064 μm of Tm 3+ -doped fluoride fibre laser operating around 1.47 μm
- 23 April 1992
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 28 (9) , 830-832
- https://doi.org/10.1049/el:19920525
Abstract
1.064 μm upconversion pumping was used to operate a highly efficient CW and Q-switched thulium (Tm3+)-doped fluoride fibre laser at around 1.47 μm. The maximum CW output power was 100 mW for a launched pump power of 570 mW. The threshold power was 200 mW, the slope efficiency 27% and the wavelength tuning width 20 nm. A peak power of 70 W was generated for Q switching at a launched pump power of 300 mW.Keywords
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