Lecaplain, C.Ortaç, B.MacHinet G.Boullet J.Baumgart, M.Schreiber, T.Cormier, E.Hideur, A.2016-02-082016-02-0820101469592http://hdl.handle.net/11693/22184We report the generation of high-energy high-peak power pulses in an all-normal dispersion fiber laser featuring large-mode-area photonic crystal fibers. The self-starting chirped-pulse fiber oscillator delivers 11 W of average power at 15:5 MHz repetition rate, resulting in 710 nJ of pulse energy. The output pulses are dechirped outside the cavity from 7 ps to nearly transform-limited duration of 300 fs, leading to pulse peak powers as high as 1:9 MW. Numerical simulations reveal that pulse shaping is dominated by the amplitude modulation and spectral filtering provided by a resonant semiconductor saturable absorber. © 2010 Optical Society of America.EnglishAverage powerChirped-pulseFemtosecondsFiber oscillatorsHigh energyHigh peak powerLarge-mode-area photonic crystal fibersNormal dispersionNumerical simulationOutput pulsePeak powerPulse energiesPulse-shapingRepetition rateSelf-startingSemiconductor saturable absorbersSpectral filteringCrystal whiskersFiber lasersFibersHigh energy physicsPhotonic crystalsPulse repetition rateSemiconductor lasersSingle mode fibersPhotonic crystal fibersArticle10.1364/OL.35.003156