2D ZrGeTe₄for dissipative soliton mode-locking at 1064 nm

Due to its extremely stable output characteristics, the ultrashort pulse fiber laser is expected to become a light source in some applications such as biomedical imaging. With the development of laser modulation materials, passive mode-locked fiber laser based on two-dimensional saturable absorber (SA) modulation is one of the main schemes to generate this type of light source. In this paper, a dissipative soliton (DS) passively mode-locked Yb-doped fiber (YDF) laser based on ZrGeTe₄-SA and filter is studied. The DS resonance pulse output characteristics at the center wavelength of 1064 nm under the synergistic regulation of SA and filter are realized, and the formation process of Lorentz peak in the DS resonance spectrum is observed. Under the condition of 270 mW pump power, the pulse width is compressed to 2.750 ps with a repetition rate of 6.8 MHz. In this study, the DS pulse output in an YDS laser based on ZrGeTe₄-SA under a single filter structure is reported for the first time. The realization ability and application potential of the laser in the DS resonance region are confirmed, which lays a foundation for the subsequent research in fiber lasers.