Sensing range improvement of brillouin optical time domain reflectometry (BOTDR) using inline erbium-doped fibre amplifier

Lalam, Nageswara, Ng, Wai Pang, Dai, Xuewu, Wu, Qiang and Fu, Yong Qing (2017) Sensing range improvement of brillouin optical time domain reflectometry (BOTDR) using inline erbium-doped fibre amplifier. In: IEEE SENSORS 2017, 30th October - 1st November 2017, Glasgow, UK.

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Abstract

In this paper, we demonstrate sensing range improvement of Brillouin optical time-domain reflectometry (BOTDR) using an inline erbium-doped fibre amplifier to compensate the sensing fibre loss. In addition, a passive depolarizer is used based on the polarization beam splitter to suppress the polarization noise. The proof-of-concept is demonstrated experimentally using a 50 km sensing fibre with a 5 m spatial resolution. The strain and temperature errors at end of the sensing fibre are 23 μϵ and 1.08°C, respectively.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	BOTDR, Brillouin scattering, Distributed fibre sensors, inline EDFA,
Subjects:	H600 Electronic and Electrical Engineering
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Paul Burns
Date Deposited:	22 Nov 2018 10:28
Last Modified:	11 Oct 2019 18:30
URI:	http://nrl.northumbria.ac.uk/id/eprint/36863

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