Design of 1800nm-2000nm thulium-doped fiber laser based on numerical simulation

Thulium ion-doped fiber lasers are valuable in various fields, including medicine, communication, and scientific research. This study aims to design a fiber laser within the 1800-2000nm band, and verify its feasibility through simulation analysis. The results showed enhanced forward signal optical power, reduced backward signal optical power, and stable final output power in the gain fiber. This research contributes to improving fiber laser performance, achieving efficient and stable laser output, and further application possibilities. The comprehensive insights provided by the experimental results serve as valuable references for future technical research, driving further optimization in structural design, fiber material enhancement, and performance improvement. Continuous efforts in experimental verification and theoretical discussions are anticipated to fuel ongoing improvements and applications in fiber laser technology, fostering innovation and progress across relevant disciplines. Furthermore, the findings from this research offer a solid foundation for advancing the capabilities of fiber lasers, creating the potential for more efficient and stable laser output in the near future. By continually refining and enhancing the technology, we can anticipate significant strides in the field of thulium-doped fiber lasers, opening up new possibilities and opportunities for diverse applications in various sectors.