RT info:eu-repo/semantics/article
T1 Strong Cancellation of RIN Transfer in a Raman-Assisted BOTDA Using Balanced Detection
A1 Domínguez López, Alejandro
A1 López Gil, Alexia Inés
A1 Martín López, Sonia
A1 González Herráez, Miguel
K1 Distributed sensor
K1 Optical fiber sensors
K1 Raman scattering
K1 Brillouin scattering
K1 Balanced detection
K1 Temperature sensor
K1 Ciencias tecnológicas
K1 Electrónica
K1 Technology
K1 Electronics
AB Raman assistance is one of the most interestingroutes toward extending the range of Brillouin optical timedomainanalysis (BOTDA) systems. Unfortunately, the use ofRaman amplification normally entails an important relativeintensity noise (RIN) transfer toward the probe wave, whichseverely limits this approach. In this letter, we show that theRIN transfer problem can be effectively avoided using a slightlymodified scheme comprising a dual-sideband modulated probeand balanced detection. Our measurements clearly indicate anearly complete cancellation of the RIN noise in the detectedtrace signal. The use of balanced detection in our Raman-assistedBOTDA setup implies a fivefold increase in figure of meritcompared with the same setup using conventional detection.
PB IEEE
SN 1041-1135
YR 2014
FD 2014-09
LK http://hdl.handle.net/10017/25138
UL http://hdl.handle.net/10017/25138
LA eng
NO European Commission
DS MINDS@UW
RD 19-abr-2024