Conventional soliton 1.5 μm fiber laser based on Ti 2 SnC saturable absorber

Abstract Abstract:In recent years, MAX phase materials have become a highly promising class of layered compounds in the field of ultrafast photonics. Owing to their inherent two-dimensional layered structure, these materials exhibit relatively low Fermi levels, high photoconductivity, and excellent optical response characteristics, making them ideal candidates for saturable absorbers in ultrashort pulse generation. In this study, Ti2SnC was prepared by liquid-phase exfoliation and deposited onto tapered fibers, and multiple characterization techniques were used to analyze Ti2SnC. To assess its potential applications, the Ti2SnC SA was integrated into an erbium-doped fiber laser, yielding both conventional soliton (CS) and 45th order harmonic mode-locking(HML) at 154.82 MHz outputs. A central wavelength of 1527.07 nm and a repetition rate of 3.44 MHz were measured. These findings indicate that Ti2SnC holds considerable promise for ultrafast photonic applications.