Generation of a Q-Switched Erbium-Doped Fiber Laser using MXene V₂CTx as Saturable Absorber

Fiber laser generation is widely studied for applications in telecommunications and industrial processes, yet enhancing laser performance, especially with effective saturable absorbers (SAs), remains a challenge. This research focuses on using MXene V₂CTx film as a saturable absorber to generate Q-switched fiber lasers. A passive fiber laser was developed using a solution casting method to fabricate the MXene V₂CTx SA. When pump power was increased from 50.66 to 149.79 mW, stable Q-switched pulses at 1530 nm were achieved, with a maximum repetition rate of 93.41 kHz, a pulse width of 3.24 µs, and a pulse energy of 48.82 nJ. These findings demonstrate that MXene V₂CTx is effective in producing stable Q-switched fiber lasers, offering potential for enhanced laser performance in various applications.