RT info:eu-repo/semantics/article
T1 Long-range static and dynamic distributed sensing
A1 González Herráez, Miguel
A1 Domínguez López, Alejandro
A1 López Gil, Alexia Inés
A1 Fidalgo Martins, Hugo
A1 Martín López, Sonia
A1 Angulo Vinuesa, Xabier
A1 Corredera, Pedro
K1 Brillouin Optical Time Domain Analysis
K1 Distributed sensing
K1 Optical fibers
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB In the past few decades, Brillouin-based distributed temperature and strain sensors have attracted the attention of both the academic and industrial sectors. In particular, B-OTDA systems have been lately a trendy study area due to their numerous and well proofed applications, such as in monitoring large civil structures, energy transportation or environmental applications. One of the main areas of research in B-OTDA sensors focuses on the extension of the measuring range. To do so, it becomes necessary to increase the signal to noise ratio (SNR) of the sensor, in particular considering the reduced signal contrast at the far end of the fiber. Several techniques have been applied in order to achieve this goal, such as Raman amplification and pulse coding. Here, we review some of these techniques (particularly Raman amplification) and their application for range extension of these sensors beyond the 100 km range. In addition, we discuss routes to perform dynamic measurements over such ultra-long spans
PB IEEE
SN 978-1-47990-162-3
SN 1930-0395
YR 2014
FD 2014-11-02
LK http://hdl.handle.net/10017/26418
UL http://hdl.handle.net/10017/26418
LA eng
NO European Commission
DS MINDS@UW
RD 25-abr-2024