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Proceedings Paper

Evaluation of Brillouin frequency shift and its temperature dependence in poly(pentafluorostyrene)-based polymer optical fibers by ultrasonic pulse-echo technique
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Paper Abstract

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.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91579C (2 June 2014); doi: 10.1117/12.2059434
Show Author Affiliations
Kazunari Minakawa, Tokyo Institute of Technology (Japan)
Kotaro Koike, Keio Univ. (Japan)
New York Univ. (United States)
Neisei Hayashi, Tokyo Institute of Technology (Japan)
Yasuhiro Koike, Keio Univ. (Japan)
Yosuke Mizuno, Tokyo Institute of Technology (Japan)
Kentaro Nakamura, Tokyo Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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