Fiber-based time and frequency dissemination between THU and NIM

Author

Wang, B. ; Gao, C. ; Chen, W.L. ; Miao, J. ; Bai, Y. ; Li, T.C. ; Wang, L.J.

Author_Institution

Joint Lab. for Meas. Sci., Tsinghua Univ., Beijing, China

fYear

2012

fDate

21-24 May 2012

Firstpage

1

Lastpage

4

Abstract

We build up a time and frequency dissemination system via the 80 km urban telecommunication fiber network between Tsinghua university (THU) and the National Institute of Metrology (NIM). A 9.1 GHz microwave frequency is disseminated on this link. Using the proposed phase noise compensation method, the frequency dissemination stability on the order of 7 × 10^-15/s and 4.5 × 10^-19/10⁵ s has been demonstrated. In addition, we also disseminate the timing signal between THU and NIM. Using the delay time compensation method, transfer delay stability within 50 ps at measurement periods from 1s to 1000s has been demonstrated.

Keywords

delays; optical fibre networks; phase noise; stability; NIM; THU; Tsinghua university; delay time compensation method; fiber-based time dissemination; frequency 9.1 GHz; frequency dissemination stability; microwave frequency; phase noise compensation method; time 1 s to 1000 s; time 50 ps; timing signal; transfer delay stability; urban telecommunication fiber network; Delay; Frequency modulation; Laser stability; Optical fiber communication; Phase noise; Stability criteria; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium (FCS), 2012 IEEE International

Conference_Location

Baltimore, MD

ISSN

1075-6787

Print_ISBN

978-1-4577-1821-2

Type

conf

DOI

10.1109/FCS.2012.6243591

Filename

6243591