Abstract
We report the recent results on development of a CEP-stable 1 kHz repetition rate TW-class OPCPA system driven by femtosecond Yb:KGW and picosecond Nd:YAG pump sources. Seed pulses with spectra spanning over an octave are produced in a continuum generator pumped by CEP-stable pulses from a difference frequency generator operated at 1.3–1.6 μm. After amplification in NOPA, pulses with energy up to 70 μJ and spectra supporting durations of 5 fs are obtained. Sub-70 mrad CEP jitter at the output of system frontend is demonstrated.
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