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Proceedings Paper

Study of sensing properties and contrastive analysis of metal coating optical fiber grating
Author(s): Jing Wang; Ning Wang; Bin Shi; Qingmei Sui; Congsheng Guan; Guangqing Wei; Shuhua Li
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Paper Abstract

Optical fiber grating (FBG) has been widely used in the measurement of parameters such as temperature and strain. However, FBG is too slim to broken, whose outside protective layer tends to shedding easily, and it is also hard to change the temperature and strain sensitivity. In order to overcome the above disadvantages and to further expand the application range of FBG, this paper improves the technology of fiber grating metal film plating process firstly. It adopts a compositive method including chemical plating and electroplating to gild FBG, copper FBG and galvanize FBG, which all get good metal coating. Then, the temperature and strain sensing properties of metalized FBG is studied in detail. Multiple metal coating FBGs were put in high-low temperature test-box together, and then the test-box worked continuously at the temperature range of 0°C~95°C. After several experiments, it concludes that metal plating enhances the temperature sensitivity of fiber grating, and the one with galvanization has the highest temperature sensitivity of 0.0235. At last, FBGs with various cladding were pasted on carbon fiber cantilever beam respectively and the pressure on the top of the cantilever increased gradually. The experimental results show that wavelength of fiber grating shift toward the long wavelength with the increase of the pressure, and the one with galvanization has the maximum strain sensitivity which has minimal impact on fiber properties.

Paper Details

Date Published: 21 February 2014
PDF: 6 pages
Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 91421R (21 February 2014); doi: 10.1117/12.2055291
Show Author Affiliations
Jing Wang, Nanjing Univ. (China)
Shandong Univ. (China)
Ning Wang, Shandong Univ. (China)
Bin Shi, Nanjing Univ. (China)
Qingmei Sui, Shandong Univ. (China)
Congsheng Guan, Shandong Univ. (China)
Guangqing Wei, Nanjing Univ. (China)
Shuhua Li, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 9142:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013
Jorge Ojeda-Castaneda; Shensheng Han; Ping Jia; Jiancheng Fang; Dianyuan Fan; Liejia Qian; Yuqiu Gu; Xueqing Yan, Editor(s)

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