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15. 5. 2023.
Automatic Characterization of a Fully-Digital Doppler Cancellation Technique for Local Ultra-Stable Frequency Dissemination
SummaryWe demonstrate a fiber link with instability in the 10-18 range for optical frequency dissemination. It relies on a fully-digital Doppler cancellation platform that makes a novel use of aliasing to generate signals above Nyquist frequency. Furthermore, we present an automatic method to measure the disturbance rejection of the system without a direct comparison between the input and the output of the fiber link. Finally, we have investigated the low-frequency noise at the Red Pitaya output.