%0 Conference Paper
%A Lamb, Thorsten
%A Butkowski, Lukasz
%A Felber, Matthias
%A Felber, Ewa
%A Fenner, Michael
%A Jablonski, Szymon
%A Kozak, Tomasz
%A Mueller, Joachim
%A Predki, Pawel
%A Schlarb, Holger
%A Sydlo, Cezary
%A Titberidze, Mikheil
%A Zummack, Falco
%T Laser-to-RF Synchronization with Femtosecond Precision
%M PUBDB-2017-11736
%P 4
%D 2017
%X Optical synchronization systems are already in regular operation in many FELs, or they will eventually be implemented in the future. In FLASH and the European XFEL, phase-stableoptical reference signals are provided by a pulsed optical synchronization system in order to achieve low timing jitter FEL performance. The generation of phase-stable RF signalsfrom a pulsed optical synchronization system is still a field of active research. The optical reference module (REFM-OPT), designed at DESY for operation in both FELs, employs a laser-to-RF phase detector, based on an integrated Mach-Zehnder interferometer. The phase drift of the 1.3 GHz RF reference signals with respect to the optical pulses is measured and actively corrected within the REFM-OPT at multiple locations in the accelerator. Therefore the REFM-OPT provides phase stable 1.3 GHz RF reference signals at these locations.The short-term and long-term performance in the accelerator tunnel of the European XFEL is presented and carefully reviewed.
%B 38th International Free-Electron Laser Conference
%C 20 Aug 2017 - 25 Aug 2017, Santa Fe (USA)
Y2 20 Aug 2017 - 25 Aug 2017
M2 Santa Fe, USA
%F PUB:(DE-HGF)8
%9 Contribution to a conference proceedings
%R 10.3204/PUBDB-2017-11736
%U https://bib-pubdb1.desy.de/record/393891