研究目的
Investigating the dynamics of asymmetric soliton explosions in an all-normal-dispersion Yb-doped mode-locked fiber laser.
研究成果
The numerical simulations demonstrate that asymmetric soliton explosions occur in a transition regime between stationary dissipative solitons and noise-like pulse emission in an all-normal-dispersion Yb-doped mode-locked fiber laser. These findings contribute to the understanding of complex dynamics underlying soliton explosions.
研究不足
The study is based on numerical simulations, which may not fully capture all physical phenomena present in real-world experiments. The model assumes certain simplifications, such as ignoring the impacts of discrete laser components on soliton operation.
1：Experimental Design and Method Selection:
The study utilizes a lumped model to simulate the dynamics of soliton explosions in an all-normal-dispersion Yb-doped fiber ring laser. The split-step Fourier method is employed for numerical simulations.
2：Sample Selection and Data Sources:
The simulation starts from a symmetric weak pulse, evolving into a stable solution under specific parameter settings.
3：List of Experimental Equipment and Materials:
The model includes a piece of 1-m ytterbium-doped fiber (YDF), two segments of single mode fiber (SMF), a Gaussian-shaped spectral filter, a 50% output coupler (OC), and a saturable absorber (SA).
4：Experimental Procedures and Operational Workflow:
The simulation involves altering the value of Esat (gain saturation energy) to examine its impact on the operation regimes, with other parameters kept constant.
5：Data Analysis Methods:
The study analyzes the temporal and spectral evolution of pulses, pulse energy, and the characteristics of soliton explosions.
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