TY - GEN
T1 - Evaluation of Brillouin frequency shift and its temperature dependence in poly(pentafluorostyrene)-based polymer optical fibers by ultrasonic pulse-echo technique
AU - Minakawa, Kazunari
AU - Koike, Kotaro
AU - Hayashi, Neisei
AU - Koike, Yasuhiro
AU - Mizuno, Yosuke
AU - Nakamura, Kentaro
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Poly(pentafluorostyrene) (PPFS), which can be easily synthesized and has a low optical loss window at 850 nm, is a promising alternative for a costly perfluorinated polymer as a base material of polymer optical fibers (POFs). To investigate the potential of a PPFS-POF as a Brillouin-based temperature sensing fiber, the Brillouin frequency shift and its temperature dependence of PPFS were estimated using an ultrasonic pulse-echo technique. The temperature coefficient, which determines the sensitivity of the temperature sensing, was approximately -7.1 MHz/K independently of the molecular weight and was nearly identical to that in perfluorinated POFs.
AB - Poly(pentafluorostyrene) (PPFS), which can be easily synthesized and has a low optical loss window at 850 nm, is a promising alternative for a costly perfluorinated polymer as a base material of polymer optical fibers (POFs). To investigate the potential of a PPFS-POF as a Brillouin-based temperature sensing fiber, the Brillouin frequency shift and its temperature dependence of PPFS were estimated using an ultrasonic pulse-echo technique. The temperature coefficient, which determines the sensitivity of the temperature sensing, was approximately -7.1 MHz/K independently of the molecular weight and was nearly identical to that in perfluorinated POFs.
KW - Brillouin scattering
KW - Poly(pentafluorostyrene)
KW - Polymer optical fiber
KW - Temperature sensor
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U2 - 10.1117/12.2059434
DO - 10.1117/12.2059434
M3 - Conference contribution
AN - SCOPUS:84903125772
SN - 9781628411751
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - 23rd International Conference on Optical Fibre Sensors
PB - SPIE
T2 - 23rd International Conference on Optical Fibre Sensors
Y2 - 2 June 2014 through 6 June 2014
ER -