First Evaluation and Frequency Measurement of the Strontium Optical Lattice Clock at NIM

Yi Ge Lin; Qiang Wang; Ye Li; Fei Meng; Bai Ke Lin; Er Jun Zang; Zhen Sun; Fang Fang; Tian Chu Li; Zhan Jun Fang

doi:10.1088/0256-307X/32/9/090601

First Evaluation and Frequency Measurement of the Strontium Optical Lattice Clock at NIM

Yi Ge Lin^*, Qiang Wang, Ye Li, Fei Meng, Bai Ke Lin, Er Jun Zang, Zhen Sun, Fang Fang, Tian Chu Li, Zhan Jun Fang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

65 Citations (Scopus)

Abstract

An optical lattice clock based on ⁸⁷Sr is built at National Institute of Metrology (NIM) of China. The systematic frequency shifts of the clock are evaluated with a total uncertainty of 2.310^?16. To measure its absolute frequency with respect to NIMs cesium fountain clock NIM5, the frequency of a flywheel H-maser of NIM5 is transferred to the Sr laboratory through a 50-km-long fiber. A fiber optical frequency comb, phase-locked to the reference frequency of this H-maser, is used for the optical frequency measurement. The absolute frequency of this Sr clock is measured to be 429228004229873.7(1.4) Hz.

Original language	English
Article number	090601
Journal	Chinese Physics Letters
Volume	32
Issue number	9
DOIs	https://doi.org/10.1088/0256-307X/32/9/090601
Publication status	Published - 1 Sept 2015
Externally published	Yes

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Lin, Y. G., Wang, Q., Li, Y., Meng, F., Lin, B. K., Zang, E. J., Sun, Z., Fang, F., Li, T. C., & Fang, Z. J. (2015). First Evaluation and Frequency Measurement of the Strontium Optical Lattice Clock at NIM. Chinese Physics Letters, 32(9), Article 090601. https://doi.org/10.1088/0256-307X/32/9/090601

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title = "First Evaluation and Frequency Measurement of the Strontium Optical Lattice Clock at NIM",

abstract = "An optical lattice clock based on 87Sr is built at National Institute of Metrology (NIM) of China. The systematic frequency shifts of the clock are evaluated with a total uncertainty of 2.310?16. To measure its absolute frequency with respect to NIMs cesium fountain clock NIM5, the frequency of a flywheel H-maser of NIM5 is transferred to the Sr laboratory through a 50-km-long fiber. A fiber optical frequency comb, phase-locked to the reference frequency of this H-maser, is used for the optical frequency measurement. The absolute frequency of this Sr clock is measured to be 429228004229873.7(1.4) Hz.",

author = "Lin, {Yi Ge} and Qiang Wang and Ye Li and Fei Meng and Lin, {Bai Ke} and Zang, {Er Jun} and Zhen Sun and Fang Fang and Li, {Tian Chu} and Fang, {Zhan Jun}",

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AU - Lin, Yi Ge

AU - Wang, Qiang

AU - Li, Ye

AU - Meng, Fei

AU - Lin, Bai Ke

AU - Zang, Er Jun

AU - Sun, Zhen

AU - Fang, Fang

AU - Li, Tian Chu

AU - Fang, Zhan Jun

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AB - An optical lattice clock based on 87Sr is built at National Institute of Metrology (NIM) of China. The systematic frequency shifts of the clock are evaluated with a total uncertainty of 2.310?16. To measure its absolute frequency with respect to NIMs cesium fountain clock NIM5, the frequency of a flywheel H-maser of NIM5 is transferred to the Sr laboratory through a 50-km-long fiber. A fiber optical frequency comb, phase-locked to the reference frequency of this H-maser, is used for the optical frequency measurement. The absolute frequency of this Sr clock is measured to be 429228004229873.7(1.4) Hz.

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First Evaluation and Frequency Measurement of the Strontium Optical Lattice Clock at NIM

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