Abstract
We describe an ultrastable cesium (Cs) atomic clock with a 9.1926-GHz regeneratively mode-locked fiber laser obtained by use of an optically pumped Cs beam tube. By adopting a 1-m-long Cs beam tube with a linewidth of 110 Hz, we have successfully obtained frequency stabilities of 4.8×10-12 for τ=1 s and 6.3 ×10-13 for τ=50 s for a 9.1926-GHz microwave output signal. This Cs atomic clock can generate an optical pulse train with the same stability as that of the obtained microwave, which allows us to deliver a frequency standard optical signal throughout the world by means of optical fiber networks.
Original language | English |
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Pages (from-to) | 1512-1514 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 30 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2005 Jun 15 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics