Free-space two-Way Optical Time-frequency Transfer(FTWOTT) Based On GEO/IGSO and MEO Satellites

Yansong Meng, Zhongying Zhang, Guoyong Wang, Lang Bian

Abstract:	The demand for higher accuracy in time synchronization makes free-space optical links necessary for time-frequency transfer. FSTWOTT will provide satellite-to-satellite, satellite-to-ground and ground-to-ground time-frequency transfer with a precision and accuracy outperforming the radiofrequency techniques. With RAFS or Hydrogen maser on GEO/IGSO and MEO satellites, the time stability better than 1ps and accuracy better than 100 ps can be achieved, at least one order of magnitude is better in the optical region than the radiofrequency region. Groundbreaking work has been done in developing space laser-communication links for high-speed data transmission from satellites to ground and also between satellites; we are developing toward the compatibility with the next generation of space laser-communication links, making high-precise time-frequency transfer and high-speed data transmission on a link at the same time to be completed.
Published in:	Proceedings of the 49th Annual Precise Time and Time Interval Systems and Applications Meeting January 29 - 1, 2018 Hyatt Regency Reston Reston, Virginia
Pages:	214 - 222
Cite this article:	Meng, Yansong, Zhang, Zhongying, Wang, Guoyong, Bian, Lang, "Free-space two-Way Optical Time-frequency Transfer(FTWOTT) Based On GEO/IGSO and MEO Satellites," Proceedings of the 49th Annual Precise Time and Time Interval Systems and Applications Meeting, Reston, Virginia, January 2018, pp. 214-222. https://doi.org/10.33012/2018.15619
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