Femtosecond fiber Mamyshev oscillator at 1550  nm

We investigated the possibility of reaching nanojoule-level pulse energies in a femtosecond erbium-doped fiber Mamyshev oscillator. In experiments, lasers generate stable pulse trains with energy up to 31.3 nJ, which is comparable to the highest achieved by prior ultrafast erbium fiber lasers. The p...

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Bibliographic Details
Published in:Optics letters 2019-02, Vol.44 (4), p.851-854
Main Authors: Olivier, Michel, Boulanger, Vincent, Guilbert-Savary, Félix, Sidorenko, Pavel, Wise, Frank W, Piché, Michel
Format: Article
Language:English
Subjects:
Computer simulation
Doped fibers
Erbium
Fiber lasers
Oscillators
Ozone
Pulse duration
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Summary:We investigated the possibility of reaching nanojoule-level pulse energies in a femtosecond erbium-doped fiber Mamyshev oscillator. In experiments, lasers generate stable pulse trains with energy up to 31.3 nJ, which is comparable to the highest achieved by prior ultrafast erbium fiber lasers. The pulse duration after a grating compressor is around 100 fs. However, as the pulse energy increases, the pulse quality degrades significantly, with a substantial fraction of the energy going into a picosecond pedestal. Numerical simulations agree with the experimental observations, and allow us to identify the gain spectrum and the nonlinearity of the erbium-doped fibers as challenges to the operation of such oscillators at high pulse energy.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.44.000851