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Proceedings Paper

The ultra-stable microwave based on ultra-stable laser
Author(s): Shaoyang Dai; Fang Fang; Shiying Cao; Nianfeng Liu; Tianchu Li
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Paper Abstract

An ultra-stable microwave based on ultra-stable laser and fiber optical frequency comb (FOFC) is built at the National Institute of Metrology China (NIM). The repetition rate (fr) of FOFC is stabilized by stabilizing the sum of the carrier envelope of set frequency (fceo) of FOFC and the beating frequency between the ultra-stable laser and FOFC. A current feedback with 30 kHz bandwidth and a piezoelectric transducer (PZT) with 1 kHz bandwidth are applied for the feedback locking. The frequency jitter of the stabilized sum frequency is about 4 Hz. The short time stability of fr is calculated better than 1E-14. This ultra-stable microwave will be applied as local oscillator for NIM5 Cs fountain to improve its short term stability.

Paper Details

Date Published: 24 October 2017
PDF: 4 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045722 (24 October 2017); doi: 10.1117/12.2284763
Show Author Affiliations
Shaoyang Dai, National Institute of Metrology (China)
Fang Fang, National Institute of Metrology (China)
Shiying Cao, National Institute of Metrology (China)
Nianfeng Liu, National Institute of Metrology (China)
Tianchu Li, National Institute of Metrology (China)

Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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