Butler, T.P.T.P.ButlerXu, J.J.XuLilienfein, N.N.LilienfeinNagl, N.N.NaglGerz, D.D.GerzHofer, C.C.HoferGaida, C.C.GaidaHeuermann, T.T.HeuermannGebhardt, M.M.GebhardtFischer, M.M.FischerHolzwarth, R.R.HolzwarthMei, M.M.MeiLimpert, J.J.LimpertKrausz, F.F.KrauszMak, K.F.K.F.MakPronin, O.O.ProninPupeza, I.I.Pupeza2022-03-142022-03-142019https://publica.fraunhofer.de/handle/publica/410759Waveform-stable, pulsed laser sources have enabled both time-domain and frequency-domain precision metrology, through real-time measurement of electric-field-driven light-matter interactions on their native femto- and attosecond time scales, and by harnessing the frequency-comb nature of high-repetition-rate pulse trains. Particular interest has been shown in these sources for use in infrared (IR) molecular fingerprinting [1,2], offering increased sensitivity and specificity compared to traditional, thermal-source-based Fourier-transform spectroscopy, for applications such as biomedical spectroscopy or trace-chemical sensing. Here, we present a compact, 50-MHz source of high-power, waveform-stable IR pulses. Driven by a 2mm based fiber chirped pulse amplifier (FCPA), three parallel nonlinear fiber channels are used to cover the spectral range of 1.4 to 20 mm.en620conference paper