Open AccessFemtosecond fiber Mamyshev oscillator at 1550 nm
Author(s) -
Michel Olivier,
Vincent Boulanger,
Félix Guilbert-Savary,
Pavel Sidorenko,
Frank W. Wise,
Michel Piché
Publication year - 2019
Publication title -
optics letters/optics index
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.44.000851
Subject(s) - optics , femtosecond , materials science , fiber laser , optical fiber , ultrafast optics , photonic crystal fiber , fiber , optoelectronics , laser , physics , composite material
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.