A compact 780 nm rubidium optical clock using modulation transfer spectroscopy and a fiber comb outputs a microwave signal with 1.91e-13 stability at 1 s, claimed as the first clock on the Rb D2 line.
Geodesy and metrology with a transportable optical clock
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Compact 780 nm Rb Optical Clock
A compact 780 nm rubidium optical clock using modulation transfer spectroscopy and a fiber comb outputs a microwave signal with 1.91e-13 stability at 1 s, claimed as the first clock on the Rb D2 line.