TY - JOUR
T1 - Effect of laser temperature control on Brillouin optical correlation-domain reflectometry
AU - Mizuno, Yosuke
AU - Motoishi, Naoki
AU - Noda, Kohei
AU - Lee, Heeyoung
AU - Nakamura, Kentaro
N1 - Publisher Copyright:
© 2020 The Japan Society of Applied Physics.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - We show that 1 °C drift of laser temperature yields a strain error of ∼8 μϵ in Brillouin optical correlation-domain reflectometry. Under the assumption that the strain measurement accuracy is +/-20 μϵ (severe requirement), +/-2.5 °C drift of the laser temperature can be permitted for proper system operation. We prove this prediction by performing distributed strain measurements at different laser temperatures. Our results indicate that, if we allow a strain measurement accuracy of approximately +/-100 μϵ (or more), we can even remove the thermal control of the laser, leading to cost reduction and downsizing of the system.
AB - We show that 1 °C drift of laser temperature yields a strain error of ∼8 μϵ in Brillouin optical correlation-domain reflectometry. Under the assumption that the strain measurement accuracy is +/-20 μϵ (severe requirement), +/-2.5 °C drift of the laser temperature can be permitted for proper system operation. We prove this prediction by performing distributed strain measurements at different laser temperatures. Our results indicate that, if we allow a strain measurement accuracy of approximately +/-100 μϵ (or more), we can even remove the thermal control of the laser, leading to cost reduction and downsizing of the system.
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U2 - 10.35848/1882-0786/ab827b
DO - 10.35848/1882-0786/ab827b
M3 - Article
AN - SCOPUS:85085259231
SN - 1882-0778
VL - 13
JO - Applied Physics Express
JF - Applied Physics Express
IS - 5
M1 - 052001
ER -