A high stability atomic fountain clock using a cryogenic sapphire interrogation oscillator

被引：24

作者：

Mann, AG ^{[1
]}

Santarelli, G ^{[1
]}

Chang, S ^{[1
]}

Luiten, AN ^{[1
]}

Laurent, P ^{[1
]}

Salomon, C ^{[1
]}

Blair, DG ^{[1
]}

Clairon, A ^{[1
]}

机构：

[1] Observ Paris, BNM Lab Primaire Temps & Frequences, F-75014 Paris, France

来源：

PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM | 1998年

关键词：

D O I：

10.1109/FREQ.1998.717871

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe the operation of the cesium fountain clock in the quantum limited regime, yielding a frequency stability of 5 10(-14)tau(-1/2), where tau is the integration time in seconds. The measured frequency instability varies as 1/root N-at where N-at is the number of detected atoms, up to N-at = 6 10(5). Among the primary frequency standards, this is the best stability ever reported. The noise contribution of the fountain interrogation oscillator has been made negligible thanks to the ultra-low frequency noise in the 0.1-100 Hz Fourier frequency range of a cryogenic sapphire oscillator.

引用

页码：13 / 17

页数：5