Comparison of primary standards of length:: He-Ne lasers at λ=633 nm frequency-stabilized to the hyperfine structure of I2

被引:4
|
作者
Balling, P
Smíd, M
Sebek, P
Matus, M
Tomanyiczka, K
Bánréti, E
机构
[1] Czech Metrol Inst, Prague 15072 5, Czech Republic
[2] Bundesamt Eich & Vermessungswesen, A-1160 Vienna, Austria
[3] Orszagos Meresugyi Hivatal, H-1124 Budapest, Hungary
关键词
D O I
10.1088/0026-1394/36/5/5
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
An international comparison of He-Ne/I-2 lasers at lambda = 633 nm between the CMI (Czech Republic), the OMH (Hungary) and the BEV (Austria) was performed at the CMI-LPM, Prague, in July 1997 as DUNAMET project D3. The frequencies of three national standards of length (lasers) were found to be in the range +/-7 kHz (1.5 parts in 10(11)) and reproducibility of frequency differences between individual lasers during one week was better than +/-5 kHz (1 part in 10(11)). The relative frequency stability, expressed as an Allan standard deviation, reached a minimum of 3 parts in 10(13) for an integration time of 10000 s.
引用
收藏
页码:433 / 437
页数:5
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