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Proceedings Paper

Study of few-mode fiber based SMS sensor for simultaneous measurement of temperature and strain
Author(s): Kazuhide Nakajima; Taiji Sakamoto; Yukihiro Goto; Chisato Fukai; Takashi Matsui; Fumihiko Yamamoto; Toshio Kurashima
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Paper Abstract

The applicability of few-mode fiber (FMF) as a single-multi-single (SMS) sensor is investigated. We examine experimentally the wavelength shift and/or visibility characteristics in an FMF based SMS sensor by changing the external temperature and longitudinal strain individually. We investigate numerically the temperature sensitivity of the fabricated sensor by considering the temperature dependence of the effective refractive index difference. Our results show that an FMF based SMS sensor can be used to measure the relative variation in temperature and strain simultaneously, and whose sensitivity can be tailored easily by designing two LP modes in an FMF.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343M (28 September 2015); doi: 10.1117/12.2193051
Show Author Affiliations
Kazuhide Nakajima, NTT Corp. (Japan)
Taiji Sakamoto, NTT Corp. (Japan)
Yukihiro Goto, NTT Corp. (Japan)
Chisato Fukai, NTT Corp. (Japan)
Takashi Matsui, NTT Corp. (Japan)
Fumihiko Yamamoto, NTT Corp. (Japan)
Toshio Kurashima, NTT Corp. (Japan)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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