Low-noise transfer of the spectral purity of an optical comb line using a feedforward schemePierre Brochard, Benjamin Rudin, Florian Emaury, Valentin J. Wittwer, Stéphane Schilt and Thomas SüdmeyerJ. Eur. Opt. Soc.-Rapid Publ., 16 1 (2020) 4DOI: https://doi.org/10.1186/s41476-020-0125-0