RT info:eu-repo/semantics/article
T1 Limits of BOTDA Range Extension Techniques
A1 Angulo Vinuesa, Xabier
A1 Domínguez López, Alejandro
A1 López Gil, Alexia Inés
A1 Ania Castañón, Juan Diego
A1 Martín López, Sonia
A1 González Herráez, Miguel
K1 Brillouin scattering
K1 Distributed optic fiber sensing
K1 Distributed Raman scattering
K1 Optical fibers
K1 Optical pulse coding
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB Brillouin-based temperature and strain sensorshave attracted great attention of both the academic andindustrial sectors in the past few decades due to their ability toperform distributed measurements. Particularly, BrillouinOptical Time Domain Analysis (BOTDA) systems have beenapplied in many different scenarios, proving particularly usefulin those requiring especially wide coverage ranging extremelylong distances, such as in civil structure monitoring, energytransportation or environmental applications. The extension ofthe measuring range in these sensors has therefore become one ofthe main areas of research and development around BOTDA. Todo so, it is necessary to increase the Signal to Noise Ratio (SNR)of the retrieved signal. So far, several techniques have beenapplied in order to achieve this goal, such as pre-amplificationbefore detection, pulse coding or Raman amplification. Here, weanalyze these techniques in terms of their performance limits andprovide guidelines that can assist in finding out which is the bestconfiguration to break current range limitations. Our analysis isbased on physical arguments as well as current literature results.
PB IEEE SENSORS
SN 1530-437X
YR 2015
FD 2015-04
LK http://hdl.handle.net/10017/24998
UL http://hdl.handle.net/10017/24998
LA eng
NO European Commission
DS MINDS@UW
RD 16-abr-2024