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<p>This study investigates the impact of critical parameters—single-mode fiber length (<i>L</i><sub><i>SMF</i></sub>), erbium-doped fiber saturation energy (<i>E</i><sub><i>S</i></sub>), saturable absorber modulation depth (<i>T</i><sub>0</sub>), and SA saturation power (<i>Pₛₐₜ</i>)—on dissipative soliton output characteristics in erbium-doped fiber lasers. Numerical simulations reveal that deviations from critical values induce pulse instability, highlighting the complex dispersion-nonlinearity interplay governing dissipative soliton dynamics. Increasing <i>L</i><sub><i>SMF</i></sub> broadens spectral bandwidth, shortens pulse width, and reduces pulse energy. Higher <i>Es</i> widens spectral bandwidth and increases pulse energy. Larger <i>T</i><sub>0</sub> compresses pulses width, broadens spectral bandwidth, and shiftsdissipative soliton spectral profiles towards conventional soliton shapes. Elevated <i>Pₛₐₜ</i> lengthens pulses width, narrows spectral bandwidth, and destabilizes dissipative soliton formation. These findings provide critical guidance for optimizing high-energy dissipative soliton generation in erbium-doped fiber lasers.</p>

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Parametric control of dissipative soliton dynamics in erbium-doped fiber lasers

  • 期刊论文

  • 发表日期：

    2026年2月1日

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  • Lushuo Chen,
  • Jian Xiao,
  • Jiancheng Zheng,
  • Chibiao Liu

摘要

This study investigates the impact of critical parameters—single-mode fiber length (LSMF), erbium-doped fiber saturation energy (ES), saturable absorber modulation depth (T0), and SA saturation power (Pₛₐₜ)—on dissipative soliton output characteristics in erbium-doped fiber lasers. Numerical simulations reveal that deviations from critical values induce pulse instability, highlighting the complex dispersion-nonlinearity interplay governing dissipative soliton dynamics. Increasing LSMF broadens spectral bandwidth, shortens pulse width, and reduces pulse energy. Higher Es widens spectral bandwidth and increases pulse energy. Larger T0 compresses pulses width, broadens spectral bandwidth, and shiftsdissipative soliton spectral profiles towards conventional soliton shapes. Elevated Pₛₐₜ lengthens pulses width, narrows spectral bandwidth, and destabilizes dissipative soliton formation. These findings provide critical guidance for optimizing high-energy dissipative soliton generation in erbium-doped fiber lasers.