Coherent microwave transfer over a 204-km telecom fiber link by a cascaded system

Author

Fujieda, Miho ; Kumagai, Motohiro ; Nagano, Shigeo

Author_Institution

Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan

Volume

57

Issue

1

fYear

2010

Firstpage

168

Lastpage

174

Abstract

We have demonstrated a microwave transfer over a 204-km noisy urban fiber link by a cascaded system with 2 stages, which connected 10-GHz and 1-GHz transfer systems in series. A diurnal phase-noise cancellation ratio of 45 dB was obtained by use of an electronic phase-noise compensation system. Additionally, the stabilities reached 6 ?? 10^-14 at 1 s and 5 ?? 10^-17 at one-half day, which agreed with the root-sumsquare of those of the 10-GHz and 1-GHz transfers. We verified for the first time that the transfer stability degrades only ??(N) times in a cascaded system with N stages.

Keywords

optical links; phase noise; radio-over-fibre; cascaded system; distance 204 km; diurnal phase-noise cancellation ratio; electronic phase-noise compensation system; frequency 1 GHz; frequency 10 GHz; microwave transfer; noisy urban fiber link; telecom fiber link; time 1 s; Distributed feedback devices; Laser feedback; Masers; NIST; Optical attenuators; Optical feedback; Optical fibers; Optical filters; Phase noise; Telecommunications; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Microwaves; Optical Fibers; Reproducibility of Results; Sensitivity and Specificity; Telecommunications;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2010.1394

Filename

5361538