A proof-of-concept model of compact and high-performance 87Sr optical lattice clock for space
Source abstract
Abstract
A compact and robust design of an optical lattice clock with high stability and accuracy is needed for the implementation of optical clocks operating on the space station. Here, we present the proof-of-concept model of a 87Sr optical lattice clock for space constructed at the National Time Service Center. The design is different from that of a laboratorial optical clock in that it focuses on the aspects of compactness and robustness, such as the modular design, compact components, low power consumption, and all-fiber links. The physics package is placed on an aluminum alloy rack with dimensions of 40 × 55 × 28 cm3. As far as we know, this is the most compact physics package of the Sr optical clock reported. The time interleaved self-comparison frequency instability is determined to be 2.6 × 10−15/τ.
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Research context
OpenAlex topics: Advanced Frequency and Time Standards · Atomic and Subatomic Physics Research · Advanced Fiber Laser Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences 1 , Xi’an 710600, China
School of Astronomy and Space Science, University of Chinese Academy of Sciences 2 , Beijing 100049, China
College of Liberal Arts and Sciences, National University of Defense Technology 3 , Changsha 410073, China
Funding
National Natural Science Foundation of China · Key Research Project of Frontier Science of the Chinese Academy of Sciences · Strategic Priority Research Program of the Chinese Academy of Sciences
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