MXene-Ti3C2Tx for watt-level high-efficiency pulse generation in a 2.8 μm mid-infrared fiber laser
MXene-Ti3C2Tx for watt-level high-efficiency pulse generation in a 2.8 μm mid-infrared fiber laser
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MXene-Ti3C2Tx，用于在 2.8××μm 中红外光纤激光器中生成瓦特级高效脉冲
DOI：
10.1364/prj.388930
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发表时间：
2020-06-01
影响因子：
7.6
通讯作者：
Liu, Yong
中科院分区：
文献类型：
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作者：
Wei, Chen;Zhou, Liqiang;Liu, Yong
报道了一种采用多层二维MXene-Ti3C2Tx作为可饱和吸收体的瓦级被动调Q 2.8微米中红外多模光纤激光器。依夫芬-Ti3C2Tx是通过在Ti3AlC2中选择性地刻蚀铝层而制备的。实验测得SA在2866 nm处的非饱和损耗为25.0%，调制深度为33.2%，饱和强度为0.043 GW/cm(2)。在28.23%的斜率效率下，Ti3C2Tx调Q光纤激光器的最大平均输出功率达到1.09W。脉冲重复率为78.12 kHz，最短脉冲宽度为1.04mU，峰值功率为13.4W，单脉冲能量为13.93mJ。据我们所知，这是第一个使用低维材料在中红外光纤激光器中产生瓦级脉冲的演示。这些结果表明，Ti3C2Tx是一种可靠的、性能优越的高功率中红外脉冲激光的宽带SA。(三)2020中国激光出版社
We report a watt-level passively Q-switched 2.8 mu m mid-infrared multi-mode fiber laser by employing multilayered two-dimensional MXene-Ti3C2Tx as the saturable absorber (SA). The Ivffene-Ti3C2Tx is fabricated by selectively etching aluminum layers in Ti3AlC2. The non-saturable loss, modulation depth, and saturable intensity of the SA at 2866 nm were measured to be 25.0%, 33.2%, and 0.043 GW/cm(2), respectively. The maximum average output power of the Ti3C2Tx Q-switched fiber laser reached 1.09 W at 28.23% slope efficiency. The pulse repetition rate, shortest pulse width, pulse peak power, and single-pulse energy were 78.12 kHz, 1.04 mu s, 13.4 W, and 13.93 mu J, respectively. This is the first demonstration of watt-level pulse generation in a mid-infrared fiber laser using low dimensional materials, to the best of our knowledge. These results indicate that the Ti3C2Tx is a reliable and superior broadband SA for high power mid-infrared pulsed laser generation. (C) 2020 Chinese Laser Press