Observation the Multi-Soliton Patterns From the Er-Doped Mode-Locked Fiber Laser Modulated by PtSe2

Abstract

The passively mode-locked fiber laser modulated by low-dimensional materials can provide an ideal platform to investigate the soliton dynamics. Here, we experimentally explored the soliton formation and evolution from an erbium-doped fiber laser mode-locked by mechanically exfoliated PtSe 2 saturable absorber via evanescent field interaction. With the increasing pump power, different soliton patterns, such as single soliton, two solitons, and bound soliton, can be observed experimentally. The experimental results can identify the non-linear optical response of the PtSe 2 and may make avenue toward unveiling the nature of the soliton dynamics in the fiber laser system.