Optical frequency-tunable Cs atomic clock with a 9.19GHz mode-hop-free fiber laser

Takahito Morisaki, Masato Yoshida, Masataka Nakazawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We successfully realized a 1.5 μm optical frequency-tunable Cs atomic clock by employing a mode-hop-free 9.19 GHz mode-locked erbium fiber laser with an optical etalon in the cavity. We achieved independent control of the optical frequency and the repetition rate (microwave frequency) of the 9.19 GHz optical pulse, in which the microwave frequency was controlled without disturbing the optical frequency. The optical frequency was continuously tuned over 1 GHz without changing the repetition rate, indicating the possibility of the absolute frequency stabilization of the Cs optical atomic clock.

Original languageEnglish
Pages (from-to)1652-1658
Number of pages7
JournalIEICE Electronics Express
Issue number21
Publication statusPublished - 2010 Nov


  • Cs optical atomic clock
  • Mode-hop-free mode-locked fiber laser
  • Optical etalon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Optical frequency-tunable Cs atomic clock with a 9.19GHz mode-hop-free fiber laser'. Together they form a unique fingerprint.

Cite this