摘要 : The lasing, spectral, and luminescent characteristics of a Tm: Ho: YLF laser pumped by a Raman shifted erbium-doped fibre laser (λ = 1678 nm) into the 1682-nm absorption line of the~3H_6- ~3F_4 transition of the Tm~(3+) ion are st... 展开 The lasing, spectral, and luminescent characteristics of a Tm: Ho: YLF laser pumped by a Raman shifted erbium-doped fibre laser (λ = 1678 nm) into the 1682-nm absorption line of the~3H_6- ~3F_4 transition of the Tm~(3+) ion are studied. It is shown that the total (with respect to the absorbed power) and slope laser efficiencies upon pulsed pumping reach 46 % and 50 %, respectively. The output radiation power in the cw regime is 400 mW. The comparative measurements showed that pumping by a fibre laser at 1678 nm is more efficient than diode pumping at 792 nm. 收起