An Yb-fiber frequency comb phase-locked to microwave standard and optical reference Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDA1502040404 and XDB21010400) and the National Natural Science Foundation of China (Grant Nos. 91850209 and 11774234). |
Long-term frequency shift and Allan deviation of the comb locked to an RF reference. (a) Residual fluctuations of the |
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