2025/12/24 by К. А. Попов, Popov, Konstantin, Hiroshi Kaji +17
Engineering · Physics and Astronomy · #Accelerator Physics (physics.acc-ph) #Advanced Fiber Laser Technologies #Advanced Frequency and Time Standards #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Optical Network Technologies
paper · doi:10.48550/arxiv.2512.21212
openalex publication_date 2025/12/24 · openalex created_date 2025/12/26 · openalex updated_date 2026/07/28
A precise synchronization between laser pulse and electron beam arrival time is essential for achieving sub-picosecond stability in modern accelerator facilities. In this work, a Low-Level RF system architecture combined with White Rabbit based timing system has been tested through a collaboration between KEK (Japan) and CNRS/IN2P3, IJClab (France). The setup combines a frequency standard generator, an IDROGEN carrier board with an embedded White Rabbit node, and SkyWorks synthesizers of different form factors to distribute phase-locked clock signals over telecommunication fiber. Phase noise power spectral density measurements were performed at several RF sub-harmonics to confirm synchronization performance. These results demonstrate the feasibility of implementing the White Rabbit-IDROGEN synchronization scheme for large-scale accelerators, including applications to laser-based diagnostics.