PCF-Cavity FBG Fabry-Perot Resonator for Simultaneous Measurement of Pressure and Temperature

Ali, M.M. and Islam, M.R. and Lim, K.S. and Gunawardena, D.S. and Yang, H.Z. and Ahmad, Harith (2015) PCF-Cavity FBG Fabry-Perot Resonator for Simultaneous Measurement of Pressure and Temperature. IEEE Sensors Journal, 15 (12). pp. 6921-6925. ISSN 1530-437X

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Official URL: DOI: 10.1109/JSEN.2015.2468065

Abstract

In this paper, we propose a Photonic Crystal Fiber (PCF)-cavity fiber Bragg grating (FBG) Fabry-Perot resonator for simultaneous sensing of temperature and pressure. The proposed device is constructed by splicing a 1.5-mm long PCF segment between two identical saturated FBGs written in SMF-28 forming an FBG-PCF-FBG configuration. As a result, a resonance dip is created within the Bragg reflection curve. Taking advantage of the difference in pressure sensitivities between the two types of fiber, the discriminative measurement of pressure and temperature can be achieved from the shifts of the resonance wavelength and band-edge wavelength. In addition, the same temperature sensitivity of PCF and SMF-28 provides the convenience of eliminating the temperature variable and achieving temperature insensitive pressure measurement.

Item Type: Article
Uncontrolled Keywords: Optical fiber sensors; Fabry-Perot resonator; photonic crystal fiber cavity; pressure sensor; temperature sensor
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Depositing User: Mrs. Siti Mawarni Salim
Date Deposited: 15 Sep 2016 05:43
Last Modified: 20 Mar 2019 07:10
URI: http://eprints.um.edu.my/id/eprint/16464

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