Sub-200 fs, nJ-level stretched-pulse thulium-doped fiber oscillator at 23MHz repetition rate

Gebhardt, M.M.GebhardtGaida, C.C.GaidaStutzki, F.F.StutzkiJauregui, C.C.JaureguiLimpert, J.J.LimpertTünnermann, A.A.Tünnermann2022-03-122022-03-122014https://publica.fraunhofer.de/handle/publica/38796010.1364/ASSL.2014.AM5A.43We report on an ultrafast thulium fiber oscillator delivering pulses with 0.7 nJ pulse energy at 22.9 MHz repetition rate. The oscillator output could be externally compressed to sub-200 fs pulse duration.enSub-200 fs, nJ-level stretched-pulse thulium-doped fiber oscillator at 23MHz repetition rateconference paper