Mode-locked switchable fiber laser based on Mamyshev oscillator cavity with anomalous dispersion gain fiber

Yuhong Song, Liang Jin, Zepeng Liu, Yu Sui, Yikai Liu, Liran Tao, Miao Hu and Ning An

Chaos, Solitons & Fractals, 2024, vol. 187, issue C

Abstract: Nonlinear spectral broadening based on self-phase modulation (SPM) is essential for achieving Mamyshev mode-locking. Changes in pulse shape due to dispersion, which indirectly affect single pulse energy and peak power, are also important factors influencing spectral broadening. However, this factor is often overlooked. Here, we investigated the impact of dispersion on pulse profile and spectral evolution through numerical simulations. By controlling the pump power and dispersion conditions within the cavity, we achieved noise-like self-starting mode-locking and reversible switching between noise-like pulses (NLPs) and single pulses in the MO using anomalous dispersion gain fiber, with signal-to-noise ratio (SNR) all exceeding 54 dB.

Keywords: Nonlinear effect; Chirp; Mamyshev oscillator; Mode-locked fiber lasers (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:187:y:2024:i:c:s096007792400938x

DOI: 10.1016/j.chaos.2024.115386

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