171Yb+ single-ion optical frequency standard at 688 THz

被引:0
|
作者
Tamm, Chr. [1 ]
Lipphardt, B. [1 ]
Schnatz, H. [1 ]
Wynands, R. [1 ]
Weyers, S. [1 ]
Schneider, T. [1 ]
Peik, E. [1 ]
机构
[1] Phys Tech Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany
来源
PROCEEDINGS OF THE 2006 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM AND EXPOSITION, VOLS 1 AND 2 | 2006年
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TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Two Yb-171(+) single-ion optical frequency standards operating at 688 THz (436 nm) are compared in order to investigate systematic frequency shifts in the sub-Hertz range. In the absence of externally applied perturbations, a mean relative frequency difference of 3.8 center dot 10(-16) is observed. This agreement is comparable to that of the most accurate comparisons between cesium fountain clocks. Using a femtosecond frequency comb generator based on a Er3+-doped fiber laser, the frequency of the Yb-171(+) standard is measured with a relative systematic uncertainty of 3.1 center dot 10(-15) and a statistical uncertainty of 0.6 center dot 10(-15).
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页码:457 / +
页数:2
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