Abstract The passive generation of Q-switched pulses in an erbium-doped fiber (EDF) laser using a Ti3C2Tx MXene based saturable absorber (SA) was demonstrated. The SA was formed using Ti3AlC2 MAX phase as a precursor for Ti3C2Tx MXene which was obtained by etching Ti3AlC2 using a mixture of lithium fluoride and hydrochloric acid. The generated pulse output was obtained at a central wavelength of 1563 nm with a signal to noise ratio (SNR) of 51.1 dB at a pump power of 244.5 mW. Varying the pump power from 130.1 mW to 244.5 mW resulted in corresponding changes in the repetition rates and the pulse durations from 29.76 kHz to 48.74 kHz and 2.74 µs to 1.18 µs respectively. A pulse energy of 82.06 nJ was also obtained at the maximum pump power. Stable Q-switching could be observed up to 44 nm tuning range starting from 1532 nm to 1576 nm. The generated outputs indicated that the Ti3C2Tx based SA can generate high quality and stable Q-switched pulses in the EDF laser cavity, and has high potential for use in various optical telecommunications applications.

中文翻译：

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基于Ti3C2Tx MXene作为可饱和吸收体的可调谐被动调Q掺铒光纤激光器

摘要 演示了使用基于 Ti3C2Tx MXene 的可饱和吸收器 (SA) 在掺铒光纤 (EDF) 激光器中被动产生调Q脉冲。SA 是使用 Ti3AlC2 MAX 相作为 Ti3C2Tx MXene 的前体形成的，Ti3C2Tx MXene 是通过使用氟化锂和盐酸的混合物蚀刻 Ti3AlC2 获得的。产生的脉冲输出在 1563 nm 的中心波长处获得，信噪比 (SNR) 为 51.1 dB，泵浦功率为 244.5 mW。将泵浦功率从 130.1 mW 改变到 244.5 mW 会导致重复率和脉冲持续时间分别从 29.76 kHz 到 48.74 kHz 和 2.74 µs 到 1.18 µs 发生相应的变化。在最大泵浦功率下也获得了 82.06 nJ 的脉冲能量。在从 1532 nm 到 1576 nm 的 44 nm 调谐范围内可以观察到稳定的 Q 开关。