Passively Q-switched mid-infrared fluoride fiber laser around 3 mu m using a tungsten disulfide (WS2) saturable absorber
Passively Q-switched mid-infrared fluoride fiber laser around 3 mu m using a tungsten disulfide (WS2) saturable absorber
复制标题
使用二硫化钨 (WS2) 可饱和吸收体的被动 Q 开关中红外氟化物光纤激光器，直径约为 3 μm
DOI：
10.1088/1612-2011/13/10/105108
复制
发表时间：
2016
影响因子：
1.7
通讯作者：
Liu Yong
中科院分区：
文献类型：
--
作者：
Wei Chen;Luo Hongyu;Zhang Han;Li Chun;Xie Jitao;Li Jianfeng;Liu Yong
报道了首次采用二硫化钨（WS 2）可饱和吸收体（SA）实现的中心波长为2865.7nm的Ho 3+/Pr 3+共掺氟化物光纤被动调Q激光器。采用硫化生长法制备了多层WS 2薄膜，并将其转移到Au反射镜上作为线性腔的腔反馈和SA器件。在318.5 mW的泵浦功率下，获得了平均功率为48.4 mW的稳定调Q脉冲，脉冲宽度为1.73 μs，重复频率为131.6 kHz，脉冲能量为0.37 μJ。我们的实验结果证实了WS 2可以是一种有效的非线性调制器，适用于3 μm波段的脉冲产生。
In this letter, we demonstrate a passively Q-switched Ho 3+/Pr 3+ co-doped fluoride fiber laser centered at 2865.7 nm using a tungsten disulfide (WS 2) saturable absorber (SA) for the first time, to the best of our knowledge. A multilayer WS 2 film was fabricated using the sulfidation grown method and then transferred onto an Au mirror to act as the cavity feedback and SA device in a linear cavity. Under a launched pump power of 318.5 mW, stable Q-switched pulses with an average output power of 48.4 mW were achieved with a pulse duration of 1.73 µs and repetition rate of 131.6 kHz, resulting in a pulse energy of 0.37 µJ. Our experimental results confirm that WS 2 can be an effective nonlinear modulator that is suitable for pulse generation at the 3 µm waveband.