TY - JOUR
T1 - Measurement sensitivity dependencies on incident power and spatial resolution in slope-assisted Brillouin optical correlation-domain reflectometry
AU - Lee, Heeyoung
AU - Mizuno, Yosuke
AU - Nakamura, Kentaro
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers 17H04930 and 17J07226, and by research grants from the Japan Gas Association, the ESPEC Foundation for Global Environment Research and Technology, the Association for Disaster Prevention Research, the Fujikura Foundation, and the Japan Association for Chemical Innovation.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - To enable high-speed distributed strain and temperature measurements, we have recently developed a new configuration of Brillouin optical correlation-domain reflectometry (BOCDR), called slope-assisted (SA-) BOCDR, which exploits the slope power of the Brillouin gain spectrum. Although its fundamental operations have been already clarified, a detailed study on the measurement sensitivity has not been performed yet. Here, we investigate the influences of the incident power and the spatial resolution on the measurement sensitivity of SA-BOCDR. The sensitivity is found to be improved with increasing incident power and/or lowering spatial resolution, which is verified through distributed temperature measurements.
AB - To enable high-speed distributed strain and temperature measurements, we have recently developed a new configuration of Brillouin optical correlation-domain reflectometry (BOCDR), called slope-assisted (SA-) BOCDR, which exploits the slope power of the Brillouin gain spectrum. Although its fundamental operations have been already clarified, a detailed study on the measurement sensitivity has not been performed yet. Here, we investigate the influences of the incident power and the spatial resolution on the measurement sensitivity of SA-BOCDR. The sensitivity is found to be improved with increasing incident power and/or lowering spatial resolution, which is verified through distributed temperature measurements.
KW - Brillouin scattering
KW - Distributed measurement
KW - Modulation
KW - Optical fiber sensors
KW - Sensitivity
KW - Strain and temperature sensing
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U2 - 10.1016/j.sna.2017.10.063
DO - 10.1016/j.sna.2017.10.063
M3 - Article
AN - SCOPUS:85033229304
SN - 0924-4247
VL - 268
SP - 68
EP - 71
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
ER -