Jafry A A A, Rosol A H A, Kasim N, Muhammad A R, Rulaningtyas R, Yasin M, Harun S W
Appl Opt. 2020 Oct 1;59(28):8759-8767. doi: 10.1364/AO.403122.
We propose a bulk structured MXene, deposited onto D-shaped fiber for soliton generation in an erbium-doped fiber laser (EDFL) cavity. Our saturable absorber (SA) device, based on MAX phase, was prepared by using stirring and ultrasonic vibration, which offer easier sample preparation compared with its 2D counterparts. By means of the polishing wheel technique, we fabricated a D-shaped fiber with a controlled polishing depth and incorporated the MAX phase solution onto its polishing region. We obtained a mode-locked soliton pulse with the proposed MAX phase D-shaped (MAX-DS) SA in EDFL cavity. The pulse width, repetition rate, and central wavelength of the pulse train are 2.21 ps, 1.89 MHz, and 1557.63 nm, respectively. The polarization-insensitive EDFL cavity initiated a soliton operation with superior stability as the pump power tuned from 21 to 131 mW; further, the ML laser exhibits an average power of 15.3 mW, peak power of 3.8 kW, and pump efficiency of 12.5%. The MAX-DS SA incorporated inside the EDFL reveals efficient output performance, with a pulse energy of 8.14 nJ, the highest ever reported, to our best knowledge, among D-shaped fiber-based SA.
我们提出了一种块状结构的MXene，将其沉积在D形光纤上，用于在掺铒光纤激光器（EDFL）腔中产生孤子。我们基于MAX相的可饱和吸收体（SA）器件是通过搅拌和超声振动制备的，与二维同类器件相比，这种方法的样品制备更容易。借助抛光轮技术，我们制造了一种具有可控抛光深度的D形光纤，并将MAX相溶液掺入其抛光区域。我们在EDFL腔中使用所提出的MAX相D形（MAX-DS）SA获得了锁模孤子脉冲。脉冲序列的脉冲宽度、重复率和中心波长分别为2.21 ps、1.89 MHz和1557.63 nm。当泵浦功率从21 mW调谐到131 mW时，偏振不敏感的EDFL腔启动了具有卓越稳定性的孤子运转；此外，锁模激光器的平均功率为15.3 mW，峰值功率为3.8 kW，泵浦效率为12.5%。EDFL内部的MAX-DS SA展现出高效的输出性能，据我们所知，其脉冲能量为8.14 nJ，是基于D形光纤的SA中报道的最高值。
