TY - JOUR
T1 - Hydrostatic pressure dependence of Brillouin frequency shift in polymer optical fibers
AU - Mizuno, Yosuke
AU - Lee, Heeyoung
AU - Hayashi, Neisei
AU - Nakamura, Kentaro
N1 - Funding Information:
Acknowledgments 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:
© 2018 The Japan Society of Applied Physics.
PY - 2018/1
Y1 - 2018/1
N2 - We experimentally investigate the pressure dependence of the Brillouin frequency shift (BFS) in a polymer optical fiber. The BFS dependence on pressure shows a hysteresis, but after several cycles of increasing/decreasing pressure, the hysteresis is mitigated. The pressure dependence coefficient at this state is +4.3 MHz/MPa, the absolute value of which is 5.8 times as large as that of bare silica fibers (the sign is opposite). The reason for this unique behavior is discussed. This result indicates that, by using plastic optical fibers instead of silica fibers, distributed pressure sensing with a higher sensitivity is potentially feasible.
AB - We experimentally investigate the pressure dependence of the Brillouin frequency shift (BFS) in a polymer optical fiber. The BFS dependence on pressure shows a hysteresis, but after several cycles of increasing/decreasing pressure, the hysteresis is mitigated. The pressure dependence coefficient at this state is +4.3 MHz/MPa, the absolute value of which is 5.8 times as large as that of bare silica fibers (the sign is opposite). The reason for this unique behavior is discussed. This result indicates that, by using plastic optical fibers instead of silica fibers, distributed pressure sensing with a higher sensitivity is potentially feasible.
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U2 - 10.7567/APEX.11.012502
DO - 10.7567/APEX.11.012502
M3 - Article
AN - SCOPUS:85040021808
SN - 1882-0778
VL - 11
JO - Applied Physics Express
JF - Applied Physics Express
IS - 1
M1 - 012502
ER -