IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Dependence of Brillouin frequency shift on temperature in poly(pentafluorostyrene)-based polymer optical fibers estimated by acoustic velocity measurement
Kazunari MinakawaKotaro KoikeNeisei HayashiYasuhiro KoikeYosuke MizunoKentaro Nakamura
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2014 Volume 11 Issue 10 Pages 20140285

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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 measured 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.

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© 2014 by The Institute of Electronics, Information and Communication Engineers
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