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

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4 Author(s)
Cho, Y.T. ; Optoelectron. Res. Centre, Univ. of Southampton, UK ; Alahbabi, M.N. ; Brambilla, G. ; Newson, T.P.

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.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 6 )

Date of Publication:

June 2005

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