Distributed Raman amplification combined with a remotely pumped EDFA utilized to enhance the performance of spontaneous Brillouin-based distributed temperature sensors

Author

Cho, Y.T. ; Alahbabi, M.N. ; Brambilla, G. ; Newson, T.P.

Author_Institution

Optoelectron. Res. Centre, Univ. of Southampton, UK

Volume

17

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

1256

Lastpage

1258

Abstract

Enhanced performance of a distributed temperature sensor based on spatially resolving the temperature-dependent intensity of the spontaneous Brillouin scattered signal was accomplished by combining distributed Raman amplification and a remotely pumped erbium-doped fiber amplifier. A temperature resolution of 5.7°C combined with a spatial resolution of 20 m was achieved at a range of 88 km.

Keywords

Brillouin spectra; Raman lasers; erbium; fibre optic sensors; optical fibre amplifiers; optical pumping; temperature sensors; thermo-optical effects; 20 m; 5.7 degC; 88 km; distributed Raman amplification; remotely pumped EDFA; remotely pumped erbium-doped fiber amplifier; spontaneous Brillouin-based distributed temperature sensors; temperature resolution; Bragg gratings; Brillouin scattering; Erbium-doped fiber amplifier; Fiber gratings; Pulse amplifiers; Raman scattering; Signal resolution; Spatial resolution; Stimulated emission; Temperature sensors; Brillouin scattering; Raman amplifier; remote amplification; temperature sensors;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.846920

Filename

1432794