title: Agile linear interferometric method for carrier-envelope phase drift measurement.
abstract: A bandwidth-independent and linear interferometric method for the measurement of the carrier-envelope phase drift of ultrashort pulse trains is demonstrated. The pulses are temporally overlapped in a resonant multiple-beam interferometer. From the position of the spectral interference pattern, the relative carrier-envelope phase between two subsequent oscillator pulses is obtained at data acquisition rates up to 200 Hz. Cross calibration has been performed by f-to-2f interferometry in two independent experiments. The optical length of the interferometer has been actively stabilized, leading to a phase jitter of 117 mrad (rms). These results indicate a reduced noise and quicker data acquisition in comparison with previous linear methods for measuring the carrier-envelope phase drift.
authors.affiliation: Department of Optics and Quantum Electronics, University of Szeged, P.O. Box 406, H-6701 Szeged, Hungary.
authors.forename: P
authors.initials: P
authors.lastname: Jójárt
authors.forename: Á
authors.initials: Á
authors.lastname: Börzsönyi
authors.forename: B
authors.initials: B
authors.lastname: Borchers
authors.forename: G
authors.initials: G
authors.lastname: Steinmeyer
authors.forename: K
authors.initials: K
authors.lastname: Osvay