title: Improving carrier-envelope phase stability in optical parametric chirped-pulse amplifiers by control of timing jitter.
abstract: It is shown that timing jitter in optical parametric chirped-pulse amplification induces spectral drifts that transfer to carrier-envelope phase (CEP) instabilities via dispersion. Reduction of this effect requires temporal synchronization, which is realized with feedback obtained from the angularly dispersed idler. Furthermore, a novel method to measure the CEP drifts by utilizing parasitic second harmonic generation within parametric amplifiers is presented. Stabilization of the timing allows the obtainment of a CEP stability of 86 mrad over 40 min at 150 kHz repetition rate.
authors.affiliation: Institute of Applied Physics, Abbe Center of Photonics, Jena 07745, Germany. steffen.haedrich@uni‑jena.de
authors.forename: S
authors.initials: S
authors.lastname: Hädrich
authors.forename: J
authors.initials: J
authors.lastname: Rothhardt
authors.forename: M
authors.initials: M
authors.lastname: Krebs
authors.forename: S
authors.initials: S
authors.lastname: Demmler
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann