Distributed high-precision time transfer through passive optical networks

Guiling Wu; Liang Hu; Hao Zhang; Jianping Chen

doi:10.1117/1.OE.53.9.096113

23 September 2014 Distributed high-precision time transfer through passive optical networks

Guiling Wu, Liang Hu, Hao Zhang, Jianping Chen

Author Affiliations +

Optical Engineering, Vol. 53, Issue 9, 096113 (September 2014). https://doi.org/10.1117/1.OE.53.9.096113

Abstract

We propose a one-point to multipoint distributed time transfer through passive optical networks using a time division multiple access (TDMA) based two-way time transfer. The clock at each clock user node is, in turn, compared with the high-precision reference clock at a master node by a two-way time transfer during assigned subperiods. The corresponding TDMA control protocol and time transfer units for the proposed scheme are designed and implemented. A 1×8 experimental system with a 20 km single-mode fiber in each subpath is demonstrated. The results show that a standard deviation of <60 ps can be reached in each comparison subperiod.

Citation Download Citation

Guiling Wu, Liang Hu, Hao Zhang, and Jianping Chen "Distributed high-precision time transfer through passive optical networks," Optical Engineering 53(9), 096113 (23 September 2014). https://doi.org/10.1117/1.OE.53.9.096113

Published: 23 September 2014

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