Study of few-mode fiber based SMS sensor for simultaneous measurement of temperature and strain

Kazuhide Nakajima; Taiji Sakamoto; Yukihiro Goto; Chisato Fukai; Takashi Matsui; Fumihiko Yamamoto; Toshio Kurashima

doi:10.1117/12.2193051

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28 September 2015 Study of few-mode fiber based SMS sensor for simultaneous measurement of temperature and strain

Kazuhide Nakajima, Taiji Sakamoto, Yukihiro Goto, Chisato Fukai, Takashi Matsui, Fumihiko Yamamoto, Toshio Kurashima

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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96343M (2015) https://doi.org/10.1117/12.2193051
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

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.

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Kazuhide Nakajima, Taiji Sakamoto, Yukihiro Goto, Chisato Fukai, Takashi Matsui, Fumihiko Yamamoto, and Toshio Kurashima "Study of few-mode fiber based SMS sensor for simultaneous measurement of temperature and strain", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343M (28 September 2015); https://doi.org/10.1117/12.2193051

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