用于温度测量的酒精填充侧孔光纤倾斜光纤布拉格光栅

2018 Al-Mansour International Conference on New Trends in Computing, Communication, and Information Technology (NTCCIT) Pub Date : 2018-11-01 DOI:10.1109/NTCCIT.2018.8681184

R. K. Ahmed, K. Hajim

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引用次数: 0

摘要

提出了一种基于倾斜光纤Bragg光栅(TFBG)的紧凑型温度传感元件，并将其写入侧孔光纤中。首先提出了传感元件并进行了实验验证。斜光纤布拉格光栅写在侧孔光纤中。TFBG传感器的透射谱有两个共振倾角。传统的醇填充侧孔光纤的波长对折射率变化非常敏感。实验结果表明，在长7cm的侧孔光纤中写入长度为10mm的TFBG，其温度灵敏度达到15pm /°C，比FBG传感元件高1.5倍左右。

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Alcohol Filled Side-Hole Fiber Tilted Fiber Bragg Grating for Temperature Measurements

A compact temperature sensing element based on tilted fiber Bragg grating (TFBG) is filed with an alcohol and written in side-hole fiber. The sensing element is first proposed and experimentally demonstrated. The tilted fiber Bragg grating is written in side hole fiber. The transmission spectrum of TFBG sensor has two resonant dips. The wavelengths are sensitive to the change of refractive index of the traditional alcohol filled side-hole fiber. Experimental results show a high temperature sensitivity reaches to 15 pm/ °C for 10 mm TFBG length written in 7cm-long side hole fiber used which about 1.5 times higher than that of FBG sensing element.

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2018 Al-Mansour International Conference on New Trends in Computing, Communication, and Information Technology (NTCCIT)

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