Institute of Laser-Physics, University of Hamburg, Hamburg, Germany.
Opt Lett. 2011 Mar 15;36(6):948-50. doi: 10.1364/OL.36.000948.
We report on the first diode-pumped laser operation of thulium-doped Lu2O3. With a very compact setup an output power of 75 W and slope efficiencies of around 40% with respect to the incident pump power were achieved at room temperature. Free running laser operation was observed at wavelengths of 2065 nm and 1965 nm. With a birefringent filter the wavelength could continuously be tuned from 1922 nm to 2134 nm. The thermal conductivity of Tm:Lu2O3 was measured for different dopant concentrations and is compared to the one of thulium-doped YAG.
我们报告了掺铥的氧化镥的第一台二极管泵浦激光运行情况。在非常紧凑的设置中，在室温下实现了 75W 的输出功率和 40%左右的相对于入射泵浦功率的斜率效率。在 2065nm 和 1965nm 的波长处观察到自由运行激光操作。通过双折射滤波器，可以连续地将波长从 1922nm 调谐到 2134nm。测量了不同掺杂浓度的 Tm:Lu2O3 的热导率，并与掺铥的 YAG 的热导率进行了比较。
