IEICE Electronics Express
Online ISSN : 1349-2543
A Cesium optical atomic clock with high optical frequency stability
Kazunari TokuhiraFumitaka SuzukiMasato YoshidaMasataka Nakazawa
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2012 Volume 9 Issue 18 Pages 1496-1503

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Abstract

We describe the greatly improved performance of a 1.5µm optical frequency stabilized Cs atomic clock composed of a mode-hop-free mode-locked fiber laser and an acetylene optical frequency standard. The output pulse width was shortened from 7.1 to 3.4ps by employing a phase modulator instead of an intensity modulator as a mode-locker. The optical frequency stability for an averaging time of 100s was also improved from 1.8×10-11 to 6.3×10-12 by precisely controlling the laser cavity temperature.

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© 2012 by The Institute of Electronics, Information and Communication Engineers
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