Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104842
Title: Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating
Authors: Dong, Xinyong
Yang, Jingyi
Jin, Shangzhong
Chan, Chi Chiu
Shum, Perry Ping
Keywords: DRNTU::Science::Medicine::Biomedical engineering
Issue Date: 2014
Source: Yang, J., Dong, X., Jin, S., Chan, C. C., & Shum, P. P. (2014). Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating. Proceedings SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571F.
Abstract: A novel magnetic field sensor by using an optical fiber Bragg grating (FBG) cascaded by a cleaved optical fiber end, which is face surrounded with magnetic fluid (MF), is experimentally demonstrated. Through Fresnel reflection (FR) of the fiber end face, side mode suppression ratio (SMSR) of reflection spectrum of the FBG is tuned by refractive index (RI) of the MF, which is sensitivity to the external magnetic field. As a result, magnetic field measurement is successfully achieved. Compared with previously reported methods based on FR of a fiber end only, it eliminates the influence of power level fluctuation of the optical source and therefore improves the measurement accuracy and stability. Furthermore, temperature can be measured simultaneously by monitoring wavelength shift of the FBG.
URI: https://hdl.handle.net/10356/104842
http://hdl.handle.net/10220/20344
Rights: © 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was published in Proceedings SPIE 9157, 23rd International Conference on Optical Fibre Sensors and is made available as an electronic reprint (preprint) with permission of Society of Photo-Optical Instrumentation Engineers (SPIE). The paper can be found at the following official URL: [http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1877715].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers
SCBE Conference Papers

Files in This Item:
File Description SizeFormat 
91571F.pdf312.17 kBAdobe PDFThumbnail
View/Open

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.