Cryogenic whispering gallery sapphire oscillator using 4 K pulse-tube cryocooler

被引：0

作者：

Watabe, K ^{[1
]}

Koga, Y ^{[1
]}

Ohshima, S ^{[1
]}

Ikegami, T ^{[1
]}

Hartnett, JG ^{[1
]}

机构：

[1] AIST, Natl Metrol Inst Japan, Tsukuba, Ibaraki 3058563, Japan

来源：

PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM & PDA EXHIBITION JOINTLY WITH 17TH EUROPEAN FREQUENCY AND TIME FORUM | 2003年

关键词：

sapphire; whispering gallery mode; 4 K pulse-tube cryocooler; oscillator;

D O I：

暂无

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 cryogenic Whispering Gallery sapphire resonator oscillator has been investigated using a 4 K pulse-tube cryocooler. The turnover temperature of the chosen mode in the sapphire crystal was 9.169 K with an unloaded Q-factor of 7 x 10(8). The prototype SLC oscillator was designed to oscillate at 9.195 GHz and exhibited a fractional frequency stability of 2 x 10(-13) at integration times of 10 s. We project a fractional frequency stability better than 1 part in 10(-14) for integration times of 1 s to 100 s with a better temperature stabilized housing and with improved vibration isolation.

引用

页码：388 / 390

页数：3

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