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  • Vol. 30, Iss. 12 — Jun. 15, 2005
  • pp: 1512–1514

Ultrastable cesium atomic clock with a 9.1926-GHz regeneratively mode-locked fiber laser

Masatsugu Yakabe, Ko Nito, Masato Yoshida, Masataka Nakazawa, Yasuki Koga, Ken Hagimoto, and Takeshi Ikegami  »View Author Affiliations


Optics Letters, Vol. 30, Issue 12, pp. 1512-1514 (2005)
http://dx.doi.org/10.1364/OL.30.001512


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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 tau=1 s and 6.3×10^-13 for tau=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.

© 2005 Optical Society of America

OCIS Codes
(190.5890) Nonlinear optics : Scattering, stimulated
(320.5520) Ultrafast optics : Pulse compression

Citation
Masatsugu Yakabe, Ko Nito, Masato Yoshida, Masataka Nakazawa, Yasuki Koga, Ken Hagimoto, and Takeshi Ikegami, "Ultrastable cesium atomic clock with a 9.1926-GHz regeneratively mode-locked fiber laser," Opt. Lett. 30, 1512-1514 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-12-1512


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