title: High-energy, sub-100 fs, all-fiber stretched-pulse mode-locked Er-doped ring laser with a highly-nonlinear resonator.
abstract: We report on ultra-short stretched pulse generation in an all-fiber erbium-doped ring laser with a highly-nonlinear germanosilicate fiber inside the resonator with a slightly positive net-cavity group velocity dispersion (GVD). Stable 84 fs pulses were obtained with a 12 MHz repetition rate at a central wavelength of 1560 nm with a 48.1 nm spectral pulse width (full width at half maximum, FWHM) and 30 mW average output power; this corresponds to the 29.7 kW maximum peak power and 2.5 nJ pulse energy obtained immediately from the oscillator.
authors.forename: Dmitriy A
authors.initials: DA
authors.lastname: Dvoretskiy
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Lazarev
authors.forename: Vasiliy S
authors.initials: VS
authors.lastname: Voropaev
authors.forename: Zhanna N
authors.initials: ZN
authors.lastname: Rodnova
authors.forename: Stanislav G
authors.initials: SG
authors.lastname: Sazonkin
authors.forename: Stanislav O
authors.initials: SO
authors.lastname: Leonov
authors.forename: Alexey B
authors.initials: AB
authors.lastname: Pnev
authors.forename: Valeriy E
authors.initials: VE
authors.lastname: Karasik
authors.forename: Alexander A
authors.initials: AA
authors.lastname: Krylov