Zeil Peter, Laurell Fredrik
Department of Applied Physics, Royal Institute of Technology, 10691 Stockholm, Sweden.
Opt Express. 2011 Jul 18;19(15):13940-8. doi: 10.1364/OE.19.013940.
We report on a tunable multi-watt ytterbium-doped fiber laser bridging the gap from three-level lasing around 980 nm to true four-level lasing at 1100 nm. Wavelength-locking and -tuning was achieved by using an external volume-Bragg grating(VBG) as the cavity end mirror. The results are compared with detailed numerical calculations based on a spectrally resolved rate equation analysis, taking competing emission at other wavelengths into account.
我们报道了一种可调谐多瓦掺镱光纤激光器，它弥合了从980nm左右的三能级激光到1100nm的真正四能级激光之间的差距。通过使用外部体布拉格光栅（VBG）作为腔端镜实现了波长锁定和调谐。将结果与基于考虑了其他波长竞争发射的光谱分辨速率方程分析的详细数值计算进行了比较。
