28–30 Oct 2024
INFN Frascati National Laboratories
Europe/Rome timezone

Femtosecond Synchronization System for Free Electron Laser

30 Oct 2024, 15:15
25m
Aula Bruno Touschek (INFN Frascati National Laboratories)

Aula Bruno Touschek

INFN Frascati National Laboratories

LNF-INFN Via Enrico Fermi, 60 00044 Frascati (Rome, Italy)
Oral Synchronization Synchronization

Speaker

Zhichao Chen (Dalian Institute of Chemical Physics)

Description

Free electron laser has the characteristics of extremely high peak brightness, ultra-short pulse and high coherence, providing unprecedented research opportunity for physics, chemistry, biomedicine, materials science and energy science.
Large-scale free electron laser and its time-resolved pump-probe experiment requires femtosecond-level synchronization. Optical and RF synchronization technologies play important roles for large facilities.
The tasks of the femtosecond synchronization system: To produce a clock reference source with femtosecond level accuracy; 10 fs-level synchronize several hundred clients for Laser, LLRF, Diagnostic, and Timing system with different requirements (optical/RF reference, frequency, power, accuracy, etc.). Femtosecond synchronization system is the core system to ensure the free electron laser facility can work and run stable for a long time.
We built two systems for Dalian Coherent Light Source (DCLS) and Dalian Advanced Light Source (DALS). Both of them are optical system and work well.
Shenzhen Superconducting Soft-X-ray Free Electron Laser (S³FEL) is a high repetition rate soft-X-ray super-conducting free-electron laser facility that consists of a 2.5 GeV CW superconducting linear accelerator and three initial undulator lines, which aims at generating X-Rays between 40 eV and 1 keV at rates up to 1MHz. An optical and RF combined synchronization system is under designing.

Primary authors

Zhichao Chen (Dalian Institute of Chemical Physics) Guorong Wu (Dalian Institute of Chemical Physics) Weiqing Zhang (Dalian Institute of Chemical Physics) Xueming Yang (Dalian Institute of Chemical Physics)

Presentation materials