Due to the characteristics of easy processing, tunable energy band, and excellent nonlinear optical properties, various novel two-dimensional (2D) materials have been synthesized and employed in ultrafast fiber laser generation. In this work, we demonstrated a stable passively mode-locked operation based on MnPS3 nanosheets as saturable absorber (SA). It is worth mentioning that we have continuously measured the performances of the laser ring cavity for seven days and the results indicated that the mode-locked laser is stable and self-starting. Meanwhile, the maximum output power was 27 mW with the fundamental frequency repetition of 5.102 MHz. These results not only supply other choice of SAs in pulse generation, but also provide a guidance to extend other possible applications of MPT3 family for the nonlinear optics.
In the past decade, two-dimensional (2D) materials have attracted increasing attention due to their energy band structure, optical properties and excellent performance in ultrafast photonics and nonlinear optics. As a kind of new 2D ternary layered material, NiPS3 can exhibit more novel electrical, optical and magnetic properties compared with those unary and binary 2D layered materials because of higher chemical diversity and structural complexity. In this work, we demonstrated a passively Q-switched operation based on few-layer NiPS3 as a saturable absorber (SA) in an erbium-doped fiber (EDF) laser. And the Q-switched output was achieved when the pump power at 40~105 mW. To our best of knowledge, it is the first time to utilize the NiPS3 as a SA in pulse laser generation.
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