# Ultimate stability of active optical frequency standards

@article{Kazakov2022UltimateSO, title={Ultimate stability of active optical frequency standards}, author={G A Kazakov and Swadheen Dubey and Anna Bychek and Uwe Sterr and M. Bober and M. Zawada}, journal={Physical Review A}, year={2022} }

Active optical frequency standards provide interesting alternatives to their passive counterparts. Particularly, such a clock does not require any local oscillator to keep the optical phase during a dead time between interrogations, because it continuously generates high-stable narrow-line laser radiation. Here we investigate the spectral properties and the stability of active clocks, including homogeneous and inhomogeneous broadening eﬀects. We ﬁnd that for short averaging times the stability…

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