Eremeev Kirill, Loiko Pavel, Maksimov Roman, Shitov Vladislav, Osipov Vladimir, Vakalov Dmitry, Lapin Viacheslav, Camy Patrice, Chen Weidong, Griebner Uwe, Petrov Valentin, Braud Alain
Opt Lett. 2023 Aug 1;48(15):3901-3904. doi: 10.1364/OL.495516.
We report on thermal, spectroscopic, and laser properties of transparent 5 at.% Tm-doped yttria and "mixed" yttria-scandia ceramics fabricated by vacuum sintering at 1750°C using nanoparticles produced by laser ablation. The solid-solution (TmYSc)O ceramic features a broadband emission extending up to 2.3 µm (gain bandwidth, 167 nm) and high thermal conductivity of 4.48 W m K. A Tm:YO ceramic laser generated 812 mW at 2.05 µm with a slope efficiency η of 70.2%. For the Tm:(Y,Sc)O ceramic, the output power was 523 mW at 2.09 µm with η = 44.7%. These results represent record-high slope efficiencies for any parent or "mixed" Tm-doped sesquioxide ceramics.
我们报道了通过激光烧蚀制备的纳米颗粒在1750°C下真空烧结而成的透明5 at.% 铥掺杂氧化钇和“混合”氧化钇 - 氧化钪陶瓷的热学、光谱和激光特性。固溶体（TmYSc）O陶瓷具有高达2.3 µm的宽带发射（增益带宽为167 nm）以及4.48 W m K的高导热率。Tm:YO陶瓷激光器在2.05 µm波长处产生了812 mW的功率，斜率效率η为70.2%。对于Tm:(Y,Sc)O陶瓷，在2.09 µm波长处的输出功率为523 mW，η = 44.7%。这些结果代表了任何母体或“混合”铥掺杂倍半氧化物陶瓷的创纪录高斜率效率。
