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Proceedings Paper

Ni-P coating metallization on fiber Bragg grating without fiber coarsening and its temperature sensing property
Author(s): A. Q. Tang; L. Fang; S. J. Xue; B. Yin; L. Liu; P. Zhang
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Paper Abstract

In order to embed the fiber Bragg grating (FBG) into intelligent metal structures, a metallization of FBG is demanded. Ni-P alloy is usually deposited as a metal coating on FBG by coarsening fiber, which will give some bad influence on the property of fiber. So in this paper, a layer of Ni-P alloy was electroless plated on FBG without coarsening of FBG, and the surface morphologies, composition, structure and adhesion force of the coating film was characterized by SEM, XPS and XRD, respectively. The results indicate that the alloy clad was very smooth, flat and compact, and in amorphous state with a composition of Ni 71.73 at% and P 28.27 at%. Moreover, the temperature sensing behavior of FBG metallized with and without coarsening was compared, and a theoretical model of temperature sensitivity for Ni-P coated FBG was presented. It shows that the temperature sensitivity of FBG without coarsening increases was 0.01126 nm/°C, but 0.01098 nm/°C for the coarsened one. Clearly, metalized FBG with no coarsening showed better sensing properties.

Paper Details

Date Published: 22 November 2011
PDF: 11 pages
Proc. SPIE 8199, 2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 819907 (22 November 2011); doi: 10.1117/12.904880
Show Author Affiliations
A. Q. Tang, Chongqing Univ. (China)
L. Fang, Chongqing Univ. (China)
S. J. Xue, Chongqing Univ. (China)
B. Yin, Chongqing Univ. (China)
L. Liu, Chongqing Univ. (China)
P. Zhang, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 8199:
2011 International Conference on Optical Instruments and Technology: Optical Sensors and Applications
Brian Culshaw; YanBiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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