Dual-comb absolute ranging reaches orbit

Yuxuan Ma; Yingying Gu; Siyu Zhou; Liheng Shi; Yongchun Xie; Guanhao Wu

doi:10.1038/s41377-026-02283-9

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Dual-comb absolute ranging reaches orbit

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- Dual-comb absolute ranging reaches orbit
- Dual-comb absolute ranging reaches orbit
- Light: Science & Applications 2026年15卷第6期页码：1753-1755
- Affiliations：
  
  1.State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, China
  2.GuangWay (Guangdong) Technology Co. Ltd., Foshan, China
  3.Science and Technology on Space Intelligent Control Laboratory, Beijing Institute of Control Engineering, Beijing, China
- Author bio：
  
  Guanhao Wu (guanhaowu@mail.tsinghua.edu.cn)
- Funds：
- DOI：10.1038/s41377-026-02283-9
  中图分类号：
- 网络首发：2026-04-20，
  
  纸质出版：2026-06-30
- Accepted：
Scan QR Code
Yuxuan Ma, Yingying Gu, Siyu Zhou, 等. Dual-comb absolute ranging reaches orbit[J]. Light: Science & Applications, 2026,15(6):1753-1755.

Ma, Y. X. et al. Dual-comb absolute ranging reaches orbit. Light: Science & Applications, 15, 1753-1755 (2026).
Yuxuan Ma, Yingying Gu, Siyu Zhou, 等. Dual-comb absolute ranging reaches orbit[J]. Light: Science & Applications, 2026,15(6):1753-1755. DOI： 10.1038/s41377-026-02283-9.

Ma, Y. X. et al. Dual-comb absolute ranging reaches orbit. Light: Science & Applications, 15, 1753-1755 (2026). DOI： 10.1038/s41377-026-02283-9.

摘要

Abstract

A dual-comb absolute-ranging payload delivered to China's Tiangong space station aboard Tianzhou-9 has demonstrated sustained on-orbit interferogram acquisition in an extravehicular environment. The system reports 13 µm precision at a 1 kHz update rate and stable operation over months

advancing traceable space metrology for formation flying and deployable observatories.

关键词

Keywords

references

Li, N. X. et al. A progress review on solid-state LiDAR and nanophotonics-based LiDAR sensors. Laser Photonics Rev. 16 , 2100511 (2022)..

Abich, K. et al. In-orbit performance of the GRACE Follow-on laser ranging interferometer. Phys. Rev. Lett. 123 , 031101 (2019)..

Coddington, I. et al. Rapid and precise absolute distance measurements at long range. Nat. Photonics 3 , 351–356 (2009)..

Zhu, Z. B. et al. Synthetic-wavelength-based dual-comb interferometry for fast and precise absolute distance measurement. Opt. Express 26 , 5747–5757 (2018)..

Yang, Y. T. et al. Analysis of the impact of timing jitter on dual-comb ranging. Opt. Express 34 , 549–567 (2026)..

Camenzind, S. L. et al. Long-range and dead-zone-free dual-comb ranging for the interferometric tracking of moving targets. ACS Photonics 12 , 1829–1839 (2025)..

Li, H. C. et al. Noise-tolerant LiDAR approaching the standard quantum-limited precision. Light Sci. Appl. 14 , 138 (2025)..

Yang, J. et al. Frequency comb-to-comb stabilization over a 1.3-km free-space atmospheric optical link. Light Sci. Appl. 11 , 253 (2022)..

Lee, J. et al. Testing of a femtosecond pulse laser in outer space. Sci. Rep. 4 , 5134 (2014)..

Pröbster, B. J. et al. FOKUS Ⅱ—Space flight of a compact and vacuum compatible dual frequency comb system. J. Optical Soc. Am. B 38 , 932–939 (2021)..

Xia, J. et al. Optical system for a strontium optical lattice clock aboard the Chinese Space Station. Rev. Sci. Instrum. 96 , 093201 (2025)..

Kuschewski, F. et al. COMPASSO mission and its iodine clock: outline of the clock design. GPS Solut. 28 , 10 (2024)..

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