Speaker
Description
Large-scale accelerators, including colliders and accelerator-based light sources, require synchronization and time distribution over distances of several tens of kilometers. Precisions of femtoseconds have been demonstrated, but the systems used to reach such specifications are costly and difficult to integrate in a particle accelerator environment. Applications such as bunch-per-bunch position monitoring and Compton polarimetry require picosecond timing and precision and often meet tight integration requirements. This is particularly true for the latter, where a passively mode-lock laser must be integrated in the accelerator environment, with 10 to 100km scale. We propose to implement a system exploiting a White Rabbit protocol-based frequency generation system, the Idrogen. We demonstrate the proof-of-concept of synchronization of a pulsed laser with a few hundred megahertz repetition rate with picosecond jitter precision through a kilometer-long optical fiber. Drifts of a few picoseconds were observed, related to environmental changes. Prospects for improvements will be exposed.
Funding Agency
Agence Nationale de la Recherche (ANR-25-CE31-7501-01)
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