Contribution to a conference proceedings

PUBDB-2018-04568

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Large-Scale Optical Synchronization System of the European XFEL

Müller, J. (Corresponding author)DESY* ; Felber, M.DESY* ; Kozak, T.DESY* ; Lamb, T.DESY* ; Schlarb, H.DESY* ; Schulz, S.DESY* ; Sydlo, C.DESY* ; Titberidze, M.DESY* ; Zummack, F.DESY*

2018

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Please use a persistent id in citations: doi:10.3204/PUBDB-2018-04568

Abstract: 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 installed. The system is based on an ultra-stable, low-noise laser oscillator, whose signals are distributed via actively length-stabilized optical fibers to the different locations across the accelerator and experimental areas. There, it is used to locally re-synchronize radio frequency signals, to precisely measure the arrival time of the electron beam for fast beam-based feedbacks, and to phase-lock optical laser systems for electron bunch generation, beam diagnostics and user pump-probe experiments with femtosecond temporal resolution. In this paper, we present the system's architecture and discuss design choices to realize an extensible, large-scale synchronization infrastructure for accelerators that meets reliability, maintainability as well as the performance requirements. Furthermore, the latest performance result of an all-optically synchronized laser oscillator is shown.

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Contributing Institute(s):

1. Strahlkontrollen (MSK)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)
2. 6G13 - XFEL (POF3-622) (POF3-622)

Experiment(s):

1. Facility (machine) XFEL

Appears in the scientific report 2018

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