Over the last years, the interest for high repetition rate (>100kHz) sources used for high harmonic generation (HHG) has been growing up widely. Indeed, increasing laser repetition rate allows, for example, to drastically increase the HHG photon flux [1]. Moreover, additional benefits such as improved statistics and signal-to-noise ratio or a reduced acquisition time are also paramount for low-interaction probability experiments. Using nonlinear compression scheme, Yb-doped fiber amplifiers (YDFA) are now able to provide the performances [2] suitable for HHG-related applications. However, one of the remaining bottleneck of these sources is the lack of carrier-envelope phase (CEP) stabilization. So far, CEP stabilization of ytterbium-doped amplifiers has only been demonstrated for oscillator or low energy systems [3].

© 2019 IEEE

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