DMSO-Ti3C2Tx-Based Saturable Absorber for Long-Term Stability of Ultrafast Fiber Laser Using Etched Fiber

• Published in: Journal of lightwave technology 2024-09, p.1-10
• Main Authors: Diachenko, Radomyr, Jeong, Wookjin, Lee, Jiyoung, Yoon, Jaeeun, Oh, Taegon, Ryu, Bowon, Song, Yong-Won, Lee, Kwanil
• Format: Article
• Language: English
• Subjects: bound-state soliton; DMSO- Ti<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">3 C<sub xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">2 Tx; fiber laser; Fiber lasers; Laser mode locking; Laser stability; long-term stability; mode-locking; Optical device fabrication; Optical fiber dispersion; Optical fiber sensors; Optical fibers; soliton rain
• ISSN: 0733-8724
• DOI: 10.1109/JLT.2024.3454289

This study focuses on the design and experimental investigation of the ultrafast fiber laser featuring a MXene film-based saturable absorber on etched fiber. Following the recent advancements in ultra-fast optics involving MXenes, there has been an increased focus on exploring the potential of these materials, particularly in the realm of optical fiber laser design. However, the long-term stability of fiber lasers based on MXenes is not well-established, often limited to less than 24 hours, potentially due to the oxidation of MXene. In this study, we employ the Ti3C2Tx MXene synthesized using DMSO (DMSO-Ti 3 C 2 Tx), which exhibits superior stability compared to commonly used MILD-Ti 3 C 2 Tx. By utilizing this MXene variant in an inertial environment, we achieved exceptional long-term stability exceeding 40 hours. Notably, even two weeks after experiment initiation, a stable mode-locking regime was maintained. Furthermore, the system was optimized to explore less studied regimes such as bound-state soliton and soliton rain, while generating stable pulses with a width of 1.48 picoseconds. Our findings highlight the promising potential of DMSO-Ti 3 C 2 Tx MXene in extending the operational stability of ultrafast fiber lasers, offering opportunities for further exploration in nonlinear optical dynamics.