Cryogenic opened cavity sapphire resonator for ultra-stable oscillator

被引：4

作者：

Bourgeois, PY

Kersalé, Y

Bazin, N

Chaubet, M

Giordano, Y

机构：

[1] CNRS, UPR 3203, Lab Phys & Metrol Oscillateurs, F-25000 Besancon, France

[2] Ctr Natl Etud Spatiales, F-31055 Toulouse, France

来源：

ELECTRONICS LETTERS | 2003年 / 39卷 / 10期

关键词：

D O I：

10.1049/el:20030509

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 new high-Q sapphire whispering gallery mode resonator is proposed to achieve ultra-high frequency stability. It is proposed to use the sapphire resonator without metallic walls to suppress spurious modes perturbating the main resonance. Providing the azimuthal order of the chosen whispering gallery mode is sufficiently high, Q-factors better than 2 x 10(8) have been observed, which turn out to be sufficient to reach a high frequency stability. A first oscillator prototype operating at 12 GHz shows a relative frequency instability of 3 x 10(-14).

引用

页码：780 / 781

页数：2

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