In this paper, we report on the first facility-wide evaluation of the optical synchronization
system at the European XFEL, resulting in excellent arrival time stability of the electron …

Accurate timing synchronization on the femtosecond timescale is an essential installation for
time-resolved experiments at free-electron lasers (FELs) such as FLASH and the upcoming …

For pump-probe and seeding experiments at free electron lasers, a femtosecond precise
bunch arrival time stability is mandatory. To stabilize the arrival times a fast longitudinal intra …

Pump-probe experiments using x-ray pulses or MeV ultrafast electrons as probes are
important for studying ultrafast dynamic processes at the atomic level. Increasing demand is …

The whole European XFEL becomes in operation this year. Dedicated standard diagnostics
systems are installed and almost all types are tested at the injector before. Now the standard …

The injector of the European XFEL is in operation since December 2015. It includes, beside
the gun and the accelerating section, containing 1.3 and a 3.9 GHz accelerating module, a …

Precise timing synchronization on the femtosecond timescale is a crucial asset for time
resolved experiments at free-electron lasers (FELs) like FLASH and the upcoming European …

At the European XFEL, a facility-wide optical synchronization system providing a
femtosecond-stable timing reference at more than 40 end-stations had been developed and …

The all-optical laser synchronization at FLASH and XFEL provides femtosecond-stable
timing of the FEL X-ray photon pulses and associated optical laser pulses (photo-injector …

A high temporal stability of produced photon pulses is a key parameter for some classes of
experiments, eg, those using a pump-probe scheme. A longitudinal intra bunch-train …