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, Takeshi Ikegami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

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 languageEnglish
Pages (from-to)1512-1514
Number of pages3
JournalOptics Letters
Volume30
Issue number12
DOIs
Publication statusPublished - 2005 Jun 15

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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