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arXiv · 2609.02551

Comparative study of noise-like pulse emission from Mamyshev oscillator and conventional passively mode-locked fiber laser

Oumaima Ougrige·Florent Bessin·François Sanchez
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Abstract

We perform an in-depth comparison of noise-like pulse emission from Mamyshev oscillator and mode-locking through nonlinear polarization rotation (NPR) in fiber lasers. NLP's temporal and spectral characteristics are analyzed in both normal and anomalous dispersion regimes. The output coupling coefficient is modified to optimize the energy of the output pulses. It is demonstrated that the pulse energy is systematically higher in NPR-based mode-locking fiber lasers than in Mamyshev oscillators. This is due to the filtering effect in the Mamyshev oscillator which rejects ultrashort pulses whose energy is insufficient to successfully pass through the two shifted optical filters.

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Oumaima Ougrige, Florent Bessin, François Sanchez. 2026-09-02. Comparative study of noise-like pulse emission from Mamyshev oscillator and conventional passively mode-locked fiber laser. https://arxiv.org/abs/2609.02551

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