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High sensitivity of balloon-like bent MMI fiber low-temperature sensor

Mohd. Noor, Muhammad Yusuf and Azmi, Asrul Izam and Abdullah, Ahmad Sharmi and Mohd. Supa'at, Abu Sahmah and Mohd. Kassim, Norazan and Ibrahim, Mohd. Haniff and Ngajikin, Nor Hafizah (2015) High sensitivity of balloon-like bent MMI fiber low-temperature sensor. IEEE Photonics Technology Letters, 27 (18). pp. 1989-1992. ISSN 1041-1135

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Official URL: http://dx.doi.org/10.1109/LPT.2015.2448944

Abstract

A novel low cost and simple temperature sensor based on multimode interference (MMI) is formed by a successive singlemode fiber (SMF)-bent multimode fiber (MMF)-SMF structure. Due to the small curvature radius of bent MMF section mimicking a balloon shape, MMI effect from the core is spreading into coating. The high temperature sensitivity is mainly due to the large thermo-optical coefficient of the existing acrylate coating of the MMF fiber. A temperature sensitivity of up to-2060 pm/°C and-25.1 nW/°C for wavelength-and intensity-based interrogation, respectively, have been achieved in the range between 27 °C and 31 °C. This sensor is most suitable in high sensitivity and low-temperature application such as the measurement of human body temperature

Item Type:Article
Uncontrolled Keywords:optical fiber sensor, temperature sensing
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:55577
Deposited By: Fazli Masari
Deposited On:20 Sep 2016 01:19
Last Modified:15 Feb 2017 03:40

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