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24 November 2023 Simulation research on steering hydrogen maser to the strontium optical lattice clock to generate the time scale
Qinfang Xu, Shanhe Wang, Xiaotong Lu, Feng Guo, Jingjing Xia, Yebing Wang, Hong Chang
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Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 129353E (2023) https://doi.org/10.1117/12.3007763
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China
Abstract
Optical clocks have achieved remarkable levels of uncertainty and stability, leading to the possibility of redefining the second based on optical transitions in the future. Incorporating optical clocks into local time scales holds great potential for enhancing their performance. A simulation approach is employed to construct a time scale composed of a continuously operating active hydrogen maser (HM) and an intermittent 87Sr optical lattice clock (OLC), utilizing Kalman filter algorithm for steering. This study investigates the influence of various operational strategies for the OLC on the steered time scale performance. The simulation result shows that when running the OLC for 4 hours per day, the root-mean-square (RMS) of the time errors is less than 0.6 ns after 30 days, while the frequency stability of the time scale reaches mid-E-17@3×106 s.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Qinfang Xu, Shanhe Wang, Xiaotong Lu, Feng Guo, Jingjing Xia, Yebing Wang, and Hong Chang "Simulation research on steering hydrogen maser to the strontium optical lattice clock to generate the time scale", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 129353E (24 November 2023); https://doi.org/10.1117/12.3007763
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KEYWORDS
Optical clocks
Strontium
Optical lattice clocks
Clocks
Hydrogen
Computer simulations
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