title: Active pump-seed-pulse synchronization for OPCPA with sub-2-fs residual timing jitter.
abstract: Short-pulse-pumped optical parametric chirped pulse amplification (OPCPA) requires a precise temporal overlap of the interacting pulses in the nonlinear crystal to achieve stable performance. We present active synchronization of the ps-pump pulses and the broadband seed pulses used in an OPCPA system with a residual timing jitter below 2 fs. This unprecedented stability was achieved utilizing optical parametric amplification to generate the error signal, requiring less than 4 pJ of seed- and 10 µJ of pump-pulse-energy in the optical setup. The synchronization system shows excellent long-term performance and can be easily implemented in almost any OPCPA system.
authors.forename: Stephan
authors.initials: S
authors.lastname: Prinz
authors.forename: Matthias
authors.initials: M
authors.lastname: Häfner
authors.forename: Marcel
authors.initials: M
authors.lastname: Schultze
authors.forename: Catherine Y
authors.initials: CY
authors.lastname: Teisset
authors.forename: Robert
authors.initials: R
authors.lastname: Bessing
authors.forename: Knut
authors.initials: K
authors.lastname: Michel
authors.forename: Reinhard
authors.initials: R
authors.lastname: Kienberger
authors.forename: Thomas
authors.initials: T
authors.lastname: Metzger