An integrated femtosecond timing distribution system for XFELS
Author(s)
Date
2006Source Title
Proceedings of the 10th European Particle Accelerator Conference, EPAC 2006
Publisher
Massachusetts Institute of Technology
Pages
2744 - 2746
Language
English
Type
Conference PaperItem Usage Stats
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Abstract
Tightly synchronized lasers and RF-systems with timing jitter in the few femtoseconds range are necessary sub-systems for future X-ray free electron laser facilities. In this paper, we present an optical-microwave phase detector that is capable of extracting an RF-signal from an optical pulse stream without amplitude-to-phase conversion. Extraction of a microwave signal with 3 fs timing jitter (from 1 Hz to 10 MHz) from an optical pulse stream is demonstrated. Scaling of this component to subfemtosecond resolution is discussed. Together with low noise mode-locked lasers, timing-stabilized optical fiber links and compact optical cross-correlators, a flexible femtosecond timing distribution system with potentially sub-10 fs precision over distances of a few kilometers can be constructed. Experimental results on both synchronized RF and laser sources will be presented.
Keywords
CorrelatorsFree electron lasers
Optical fibers
Timing jitter
Distribution systems
Femtosecond timing
Microwave signals
Mode-locked laser
Optical-fiber links
Phase detectors
Synchronized laser
X-ray free electron lasers
Ultrashort pulses