title: Ultrafast amplifier additive timing jitter characterization and control.
abstract: We report on the characterization and long-term compensation of additive timing jitter introduced by a femtosecond ytterbium regenerative amplifier with a 100 kHz repetition rate. A balanced optical cross-correlation technique is used to generate a jitter error signal. This approach is well suited to characterize the additive timing jitter of Yb amplifiers seeded by narrow spectrum Yb oscillators. The balanced optical cross-correlator is in a noncollinear configuration allowing a background free coindence detection. This setup enables the measurement of additive timing jitter from the amplifier, with a noise floor of 300 as integrated from 10 Hz to 10 kHz. The measured additive timing jitter level is about 5 fs, integrated from 0.1 Hz to 10 kHz. The amplifier timing drift characterization and control are performed for more than an hour.
authors.forename: Alexis
authors.initials: A
authors.lastname: Casanova
authors.forename: Quentin
authors.initials: Q
authors.lastname: D'Acremont
authors.forename: Giorgio
authors.initials: G
authors.lastname: Santarelli
authors.forename: Stefan
authors.initials: S
authors.lastname: Dilhaire
authors.forename: Antoine
authors.initials: A
authors.lastname: Courjaud