Frequency measurement of a Sr lattice clock using an SI-second-referenced optical frequency comb linked by a global positioning system (GPS)

被引：21
|
作者：
Hong, FL
Takamoto, M
Higashi, R
Fukuyama, Y
Jiang, J
Katori, H
机构：
[1] Natl Inst Adv Ind Sci & Technol, Natl Metrol Inst Japan, Ibaraki 3058563, Japan
[2] Univ Tokyo, Engn Res Inst, Bunkyo Ku, Tokyo 1138656, Japan
[3] Japan Sci & Technol Agcy, PRESTO, Bunkyo Ku, Tokyo 1138656, Japan
来源：
OPTICS EXPRESS | 2005年 / 13卷 / 14期
关键词：
D O I：
10.1364/OPEX.13.005253
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have established a transportable frequency measurement system using an optical frequency comb linked to a commercial Cs atomic clock, which is in turn linked to international atomic time (TAI) through global positioning system (GPS) time. An iodine-stabilized Nd:YAG laser is used as a flywheel in the frequency measurement system. This system is used to measure the absolute frequency of the clock transition of Sr-87 in an optical lattice. We obtained a fractional uncertainty of 2 x 10(-14) in the frequency measurement with a total averaging time of similar to 10(5) s over 9 days. (C) 2005 Optical Society of America.
引用
收藏
页码：5253 / 5262
页数：10
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