Accurate measurement of large optical frequency differences with a mode-locked laser

被引:336
作者
Udem, T [1 ]
Reichert, J [1 ]
Holzwarth, R [1 ]
Hänsch, TW [1 ]
机构
[1] Max Planck Inst Quantenopt, D-85748 Garching, Germany
关键词
D O I
10.1364/OL.24.000881
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have used the comb of optical frequencies emitted by a mode-locked laser as a ruler to measure differences of as much as 20 THz between laser frequencies. This is to our knowledge the largest gap measured with a frequency comb, with high potential for further improvements. To check the accuracy of this approach we show that the modes are distributed uniformly in frequency space within the experimental limit of 3.0 parts in 10(17). By comparison with an optical frequency comb generator we have verified that the mode separation equals the pulse repetition rate within the experimental limit of 6.0 parts in 10(16). (C) 1999 Optical Society of America OCIS codes: 120.3930, 320.5550.
引用
收藏
页码:881 / 883
页数:3
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