fs-level laser-RF synchronization with a fiber-loop optical-microwave phase detector
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摘要:
In order to improve the precision of the laser-radio-frequency (RF) synchronization system from sub-picosecond to femtosecond (fs),a synchronization system between a picosecond laser and a 1.3 GHz RF generator has been developed based on a fiber-loop optical-microwave phase detector (FLOM-PD).Synchronization with fs-level (3.8 fs) rms jitter,integrated from 10 Hz to 1 MHz,is achieved for the first time,to the best of our knowledge,in this kind of configuration.This system will be used for the superconducting RF accelerator at Peking University.