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.
|Title of host publication||2017 IEEE SENSORS - Conference Proceedings|
|Number of pages||3|
|Publication status||Published - 21 Dec 2017|
|Event||16th IEEE SENSORS Conference, ICSENS 2017 - Glasgow, United Kingdom|
Duration: 30 Oct 2017 → 1 Nov 2017
|Conference||16th IEEE SENSORS Conference, ICSENS 2017|
|Period||30/10/17 → 1/11/17|