Square wave frequency modulation as a mean to reduce the effect of local oscillator instabilities in alkali vapor passive frequency standards

被引：1

作者：

De Marchi, A ^{[1
]}

Lo Presti, L ^{[1
]}

Rovera, GD ^{[1
]}

机构：

[1] Politecn Torino, Turin, Italy

来源：

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

关键词：

D O I：

10.1109/FREQ.1998.717889

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：

A quick review is given of mechanisms that can transfer local oscillator instabilities onto the output frequency of an atomic frequency standard, with the possible result of representing a limitation to its short term. stability. The special case of an alkali vapor cell standard operated with a frequency control loop using square wave frequency modulation is then studied, to shaw that this solution has an advantage over sinewave modulation with respect to the problem at hand. The analysis is quasi-static. However it is argued that, contrary to the case of sinewave modulation, a dynamical analysis would come to the same conclusions.

引用

页码：104 / 109

页数：6