TY  - CONF
AU  - Lamb, Thorsten
AU  - Butkowski, Lukasz
AU  - Felber, Matthias
AU  - Felber, Ewa
AU  - Fenner, Michael
AU  - Jablonski, Szymon
AU  - Kozak, Tomasz
AU  - Mueller, Joachim
AU  - Predki, Pawel
AU  - Schlarb, Holger
AU  - Sydlo, Cezary
AU  - Titberidze, Mikheil
AU  - Zummack, Falco
TI  - Laser-to-RF Synchronization with Femtosecond Precision
M1  - PUBDB-2017-11736
SP  - 4
PY  - 2017
AB  - 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.
T2  - 38th International Free-Electron Laser Conference
CY  - 20 Aug 2017 - 25 Aug 2017, Santa Fe (USA)
Y2  - 20 Aug 2017 - 25 Aug 2017
M2  - Santa Fe, USA
LB  - PUB:(DE-HGF)8
DO  - DOI:10.3204/PUBDB-2017-11736
UR  - https://bib-pubdb1.desy.de/record/393891
ER  -