Direct generation of Cs-based atomic clock RF interrogation signal by an optoelectronic oscillator
Résumé
We propose to use an optoelectronic oscillator to generate the RF signal interrogation of a Cs-based RF atomic clock. In this proof-of-concept experiment, we show that the adjustment of the optical fiber length in the OEO while operating the optical carrier at 1.3 µm allows for dramatic improvement of the RF contribution to the relative frequency instability of the clock down to 2.9x10 -14 at 1 s, a factor of 2 better than state-of-the-art RF synthesis.
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