2024
DOI: 10.1021/acsanm.3c06256
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Germanene Nanosheets as Saturable Absorbers for Soliton Rains and Large-Energy Pulse Generation in Passively Mode-Locked Fiber Lasers

Baohao Xu,
Wanggen Sun,
Jian Su
et al.

Abstract: Germanene (Ge), as one kind of Xene, possesses excellent nonlinear optical and photoelectric properties. In this paper, Ge nanosheets (Ge-NSs) were prepared and utilized as saturable absorbers in an Er-doped fiber laser to successfully achieve soliton rain and large-energy pulse modulation. The operation of a soliton rain pulse was achieved at a pump power of 34 mW. The number of drifting solitons gradually increases with increasing pump power. By increasing the pump power to 90.8 mW and adjusting the polariza… Show more

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