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An investigation into using optical amplifiers for enhancing Brillouin based optical time domain reflectometry

An investigation into using optical amplifiers for enhancing Brillouin based optical time domain reflectometry
An investigation into using optical amplifiers for enhancing Brillouin based optical time domain reflectometry
Distributed fibre sensors have been successfully demonstrated and used in various industries for performing continuous measurements of the physical parameters such as temperature and strain. However, the measurement range and the performance of such sensors are limited by the intrinsic attenuation of the signal in the sensing fibre. This thesis investigates using optical amplification within the sensing fibre to enhance the range and the performance of the distributed Brillouin based sensors. To extend the range beyond this, remote amplification was also investigated using CW Raman amplification in which a Raman pump is injected at the midpoint of a 100km sensing fibre and a remotely pumped Erbium doped fibre amplifier is also situated at the midpoint. The performance achieved using each technique was measured and the relative advantages of each configuration were identified and discussed
Cho, Yuh Tat
5d7e31ad-6b59-4edb-b82f-98d5a37f2af0
Cho, Yuh Tat
5d7e31ad-6b59-4edb-b82f-98d5a37f2af0

Cho, Yuh Tat (2004) An investigation into using optical amplifiers for enhancing Brillouin based optical time domain reflectometry. University of Southampton, Optoelectronics Research Centre, Doctoral Thesis, 154pp.

Record type: Thesis (Doctoral)

Abstract

Distributed fibre sensors have been successfully demonstrated and used in various industries for performing continuous measurements of the physical parameters such as temperature and strain. However, the measurement range and the performance of such sensors are limited by the intrinsic attenuation of the signal in the sensing fibre. This thesis investigates using optical amplification within the sensing fibre to enhance the range and the performance of the distributed Brillouin based sensors. To extend the range beyond this, remote amplification was also investigated using CW Raman amplification in which a Raman pump is injected at the midpoint of a 100km sensing fibre and a remotely pumped Erbium doped fibre amplifier is also situated at the midpoint. The performance achieved using each technique was measured and the relative advantages of each configuration were identified and discussed

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Published date: 2004
Organisations: University of Southampton

Identifiers

Local EPrints ID: 42432
URI: https://eprints.soton.ac.uk/id/eprint/42432
PURE UUID: 60ef83e2-37ae-42d8-935f-62c19b6517d0

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Date deposited: 19 Apr 2007
Last modified: 13 Mar 2019 21:11

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