| Paper |
Title |
Page |
| TUBAU02 |
Femtosecond Synchronization and Stabilization Techniques
|
287 |
| |
- J. Kim, J. Chen, F. X. Kaertner
MIT, Cambridge, Massachusetts
- F. Ludwig
DESY, Hamburg
- Z. Zhang
Peking University, School of Physics, Beijing
|
|
| |
Future seeded X-ray free electron laser facilities will be based on an intricate interplay between ultrafast lasers and RF-driven accelerators. To develop the full potential of these new ultrafast X-ray sources, tight synchronization between the laser pulses and the electron bunches on the scale of a few femtoseconds is necessary over several kilometres of distance. In this paper, we present optical synchronization and stabilization techniques that enable the implementation of a long-term stable femtosecond timing and synchronization system. For optical-to-RF synchronization, we demonstrate an optical-microwave phase detector that is capable to extract an RF-signal from an optical pulse train with less than 5 fs timing jitter [1 Hz, 10MHz]. Scaling of this component to sub-femtosecond resolution is discussed. Optical-to-optical synchronization of multiple femtosecond lasers with sub-femtosecond precision over more than 12 hours is demonstrated. In addition, first results on optically stabilized fiber links for timing distribution will be presented. Together with low noise mode-locked lasers, a flexible femtosecond timing distribution system can be constructed.
|
|
|
Slides
|
|
Talk
|