Soliton interaction in a MXene-based mode-locked fiber laser

• Published in: Optics express Vol. 31; no. 23; pp. 38688 - 38698
• Main Authors: Yang, Huiran, Qi, Mengting, Li, Xupeng, Xue, Ze, Cheng, Jiawei, Lu, Chenhao, Han, Dongdong, Li, Lu, Zhang, Yusheng, Zhao, Feng
• Format: Journal Article
• Language: English
• Published: 06.11.2023
• ISSN: 1094-4087; 1094-4087
• DOI: 10.1364/OE.505175

MXenes are a class of two-dimensional layered structure ternary metal carbide or/and nitride materials. Recently, the MXene V 2 CT x 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 V 2 CT x have not been reported yet. In this study, V 2 CT x 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 V 2 CT x can be developed as an efficient ultrafast photonics candidate to further understand the complex nonlinear dynamics of bound-state pulses in fiber lasers.