Stability limits of an optical frequency standard based on free Ca atoms

Proceedings of the 2011 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum, San Francisco, CA, USA, May 2011 We have quantified a short term instability budget for an optical frequency standard based on cold, freely expanding calcium atoms. S...

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Bibliographic Details
Main Authors Sherman, J. A, Oates, C. W
Format Journal Article
LanguageEnglish
Published 16.08.2011
Subjects
Physics - Atomic Physics
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Summary:Proceedings of the 2011 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum, San Francisco, CA, USA, May 2011 We have quantified a short term instability budget for an optical frequency standard based on cold, freely expanding calcium atoms. Such systems are the subject of renewed interest due to their high frequency stability and relative technical simplicity compared to trapped atom optical clocks. By filtering the clock laser light at 657 nm through a high finesse cavity, we observe a slight reduction in the optical Dick effect caused by aliased local oscillator noise. The ultimately limiting technical noise is measured using a technique that does not rely on a second clock or fs-comb.
DOI:10.48550/arxiv.1108.3293