Opt Lett. 2018 Jun 1;43(11):2724-2727. doi: 10.1364/OL.43.002724.
We demonstrate the first actively Q-switched fiber laser operating in the 3.5 μm regime. The dual-wavelength pumped system makes use of an Er doped ZBLAN fiber and a germanium acousto-optic modulator. Robust Q-switching saw a pulse energy of 7.8 μJ achieved at a repetition rate of 15 kHz, corresponding to a peak power of 14.5 W.
我们展示了首例工作在 3.5μm 波段的主动调 Q 光纤激光器。双波长泵浦系统采用掺铒 ZBLAN 光纤和锗声光调制器。在 15kHz 的重复率下，实现了 7.8μJ 的脉冲能量，相应的峰值功率为 14.5W，得到了稳定的调 Q 脉冲。
