Long term attenuation measurements on optical ground wires

Author

Lamarche, Louis ; Gagnon, Daniel ; Miron, Michel

Author_Institution

Hydro-Quebec, Varennes, Que., Canada

Volume

11

Issue

4

fYear

1996

fDate

11/1/1996 12:00:00 AM

Firstpage

1863

Lastpage

1867

Abstract

The attenuation stability of optical fibres integrated in optical ground wire (OPGW) cables over temperature and time is of paramount importance in the planning of long distance links. We report here a mean thermal attenuation dependence of 5.5·10^-5 dB/(km·°C) at 1550 nm, on a 220 km span of dispersion shifted (DS) fibres of an installed OPGW cable. This optical link is installed in the James Bay region over a 735 kV power line where temperature varies from -40°C to +30°C annually. The data sample presented covers 1.5 year starting December 1993. During that period, we also observed a temporal evolution of the attenuation described by the empirical relation A=A₀ (t-t₀)^0.00394

Keywords

attenuation measurement; cable testing; optical cables; optical fibre testing; power overhead lines; power transmission lines; -40 to 30 C; 1.5 y; 1550 nm; 220 km; 735 kV; James Bay region; attenuation stability; dispersion shifted fibres; long distance links planning; long term attenuation measurements; mean thermal attenuation dependence; optical fibres; optical ground wires; power line; Attenuation measurement; Integrated optics; Land surface temperature; Optical attenuators; Optical fiber cables; Optical fiber communication; Optical fiber dispersion; Optical fibers; Stability; Wires;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.544655

Filename

544655