Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
Opt Lett. 2010 Dec 15;35(24):4136-8. doi: 10.1364/OL.35.004136.
We report, for the first time to the best of our knowledge, a watt level cw fiber laser at ~2 μm from a piece of 40-cm-long newly developed highly thulium-doped (3.76 × 10(20) ions/cm(3)) tungsten tellurite glass double cladding fiber pumped by a commercial 800 nm laser diode. The maximum output power of the fiber laser reaches 1.12 W. The slope efficiency and the optical-optical efficiency with respect to the absorbed pump are 20% and 16%, respectively. The lasing threshold is 1.46 W, and the lasing wavelength is centered at 1937 nm.
我们首次报告，据我们所知，在一段 40 厘米长的新型高掺铥（3.76×10(20) 离子/cm(3)）钨碲酸盐玻璃双包层光纤中，利用商业 800nm 激光二极管实现了 2μm 波段瓦级连续光纤激光器。该光纤激光器的最大输出功率达到 1.12W，其斜率效率和相对于吸收泵的光光效率分别为 20%和 16%。激光阈值为 1.46W，激光波长中心位于 1937nm。
