Reducing statistical noise in frequency ratio measurement between Ca<sup>+</sup> and Sr optical clocks with a frequency-synthesized local oscillator from a Sr optical clock

Haosen Shi; Bingkun Lu; Huaqing Zhang; Ruming Hu; Yuan Qian; Yao Huang; Tao Yang; Yuan Yao; Hongfu Yu; Zhanjun Fang; Kelin Gao; Hua Guan; Yige Lin; Yanyi Jiang; Longsheng Ma

doi:10.1364/PRJ.539892

Photonics Research, Volume. 12, Issue 11, 2741(2024)

Reducing statistical noise in frequency ratio measurement between Ca⁺ and Sr optical clocks with a frequency-synthesized local oscillator from a Sr optical clock

Haosen Shi1,†... Bingkun Lu2,3,4,†, Huaqing Zhang5,6,†, Ruming Hu5,6,7, Yuan Qian5,6,7, Yao Huang5,6, Tao Yang2,4, Yuan Yao1, Hongfu Yu1, Zhanjun Fang2,4, Kelin Gao5,6, Hua Guan5,6,8,9,*, Yige Lin2,4,10,*, Yanyi Jiang1,11,* and Longsheng Ma1 |Show fewer author(s)

Author Affiliations

¹State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

²Division of Time and Frequency Metrology, National Institute of Metrology, Beijing 100029, China

³Key Laboratory of Atomic Frequency Standards, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China

⁴Key Laboratory of State Administration for Market Regulation (Time Frequency and Gravity Primary Standard), Beijing 100029, China

⁵Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China

⁶Department of Precision Instrument, Tsinghua University, Beijing 100084, China

⁷University of Chinese Academy of Sciences, Beijing 100049, China

⁸Wuhan Institute of Quantum Technology, Wuhan 430206, China

⁹e-mail: guanhua@apm.ac.cn

¹⁰e-mail: linyige@nim.ac.cn

¹¹e-mail: yyjiang@phy.ecnu.edu.cn

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Haosen Shi, Bingkun Lu, Huaqing Zhang, Ruming Hu, Yuan Qian, Yao Huang, Tao Yang, Yuan Yao, Hongfu Yu, Zhanjun Fang, Kelin Gao, Hua Guan, Yige Lin, Yanyi Jiang, Longsheng Ma, "Reducing statistical noise in frequency ratio measurement between Ca⁺ and Sr optical clocks with a frequency-synthesized local oscillator from a Sr optical clock," Photonics Res. 12, 2741 (2024)

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