Yang Huiran, Qi Mengting, Li Xupeng, Xue Ze, Cheng Jiawei, Lu Chenhao, Han Dongdong, Li Lu, Zhang Yusheng, Zhao Feng
Opt Express. 2023 Nov 6;31(23):38688-38698. doi: 10.1364/OE.505175.
MXenes are a class of two-dimensional layered structure ternary metal carbide or/and nitride materials. Recently, the MXene VCT has demonstrated excellent long-term stability, strong saturable absorption, and fast optical-switching capability, used to generate Q-switched and ultrashort pulsed lasers. However, bound-state fiber lasers based on VCT have not been reported yet. In this study, VCT is combined with a D-shaped fiber to form a saturable absorber device, whose modulation depth is measured to be 1.6%. By inserting the saturable absorber into an Er-doped fiber laser, bound states with different soliton separation and munbers are successfully obtained. Additionally, bound states with a compound soliton structure, such as the (2 + 2)- and (2 + 1)-type, are also realized. Our findings show that VCT can be developed as an efficient ultrafast photonics candidate to further understand the complex nonlinear dynamics of bound-state pulses in fiber lasers.
MXenes是一类二维层状结构的三元金属碳化物或/和氮化物材料。最近，MXene VCT已表现出优异的长期稳定性、强饱和吸收和快速光开关能力，可用于产生调Q和超短脉冲激光器。然而，基于VCT的束缚态光纤激光器尚未见报道。在本研究中，VCT与D形光纤相结合形成一个饱和吸收器装置，其调制深度测得为1.6%。通过将该饱和吸收器插入掺铒光纤激光器中，成功获得了具有不同孤子间距和数量的束缚态。此外，还实现了具有复合孤子结构的束缚态，如(2 + 2)型和(2 + 1)型。我们的研究结果表明，VCT可作为一种高效的超快光子学候选材料，以进一步理解光纤激光器中束缚态脉冲的复杂非线性动力学。
