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2.31 µm laser under up-conversion pumping at 1.064 µm in Tm3+:ZBLAN fibre lasers

2.31 µm laser under up-conversion pumping at 1.064 µm in Tm3+:ZBLAN fibre lasers

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A 150 mW output power continuous-wave laser (2–3 µm) in a 1000 ppm. wt thulium (Tm+3)-doped ZBLAN fibre laser is presented. The fibre is pumped by a wavelength of 1064 nm (up-conversion pumping) generated from a diode-pumped Nd:YAG laser. A threshold of 700 mW and slope efficiency of 7.8% with respect to the launched pump power has been obtained.

References

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