Abstract
We report for the first time continuous wave (CW) red laser emission in Tm+3-doped ZBLAN fiber laser, operated at 650 nm (1 G 4 → 3 F 4 transition of Tm+3). The excitation uses a three step upconversion scheme. The pump source is a Nd:YAG laser operated at 1.064 μm. A laser output power of CW 80 mW was obtained for 1.42 W of launched pump power. The slope efficiency with respect to launched pump power was measured to be 7.7%. The temporal behavior of the emitted laser is also addressed.
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El-Agmy, R.M. 650-nm laser emission under upconversion pumping at 1.064 μm in Tm+3: ZBLAN fiber laser. Laser Phys. 20, 1990–1993 (2010). https://doi.org/10.1134/S1054660X10210048
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DOI: https://doi.org/10.1134/S1054660X10210048