ShangYuan Li
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- Associate researcher
- Supervisor of Master's Candidates
- Name (Simplified Chinese):ShangYuan Li
- Name (English):ShangYuan Li
- Education Level:With Certificate of Graduation for Doctorate Study
- Professional Title:Associate researcher
- Status:Employed
- Alma Mater:清华大学
- Teacher College:DZGCX
Contact Information
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- Selected Publications
High-precision fiber-optic two-way time transfer network with time-frequency transform measurement
Release time:2023-05-08 Hits:
- DOI number:10.1016/j.optcom.2020.126342
- Journal:OPTICS COMMUNICATIONS
- Abstract:Time transfer over optical fiber is finding numerous applications and attracting extensive research. In this paper, we present a high-precision fiber-optic two-way time transfer network based on the time-frequency domain transform (TFDT) measurement. The time signals of different sites are embedded into the chirp pulse signals, the relative time interval of which is converted to the mutual beat frequency and then measured in frequency domain. Accordingly enhancing the transformation factor can improve the measurement accuracy to enable the two-way fiber-optic time transfer with picosecond-level resolution. The accuracy of the TFDT measurement is experimentally tested under different pulse widths and signal-to-noise ratios. Furthermore, we implement a three-node time transfer network over a 5.9 km fiber loop link by the picosecond-precision two-way time transfer. The time stabilities of both remote sites can reach around 0.36 ps at 10000 s averaging time.
- First Author:wang, Haojie, Li, Shangyuan, Xue, Xiaoxiao, Zheng, Xiaoping
- Indexed by:J
- Document Type:Article
- Volume:477
- ISSN No.:0030-4018
- Translation or Not:no