Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing

doi:10.1109/jsen.2022.3149508

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	Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing
	Q. Guo; Z. D. Zhang; Z. M. Zheng; X. P. Pan; C. Chen; Z. N. Tian; Q. D. Chen; Y. S. Yu and H. B. Sun
	2022
发表期刊	Ieee Sensors Journal
ISSN	1530-437X
卷号	22 期号:6 页码:5703-5708
摘要	This paper reports the fabrication of parallel integrated sapphire fiber Bragg gratings (SFBGs) probe sensor by the femtosecond laser point by point (PbP) method. The SFBGs probe sensor transmits optical signals through quartz multimode fiber, and takes an 8.5 mm sapphire fiber as the sensing probe, which can work stably for a long time at 1200 degrees C. This method can not only quickly prepare and obtain SFBGs with small bandwidth, but also obtain gratings with high reflectivity, which is about 15%. The mode field distribution in sapphire fibers with different lengths is studied by the beam quality analyzer. High-order modes are easily excited as the length of sapphire fibers increases. In addition, a spherical lens is prepared at the end of sapphire fiber, which effectively improve the signal-to-noise ratio (SNR) to 22 dB. The good spectral quality can still be maintained after holding at 1200 degrees C for 24 hours, and the temperature sensitivity can reach 30.19 pm/degrees C in the high temperature range, which is more than 2 times higher than that of quartz FBGs sensors. This parallel integrated SFBGs probe sensor overcomes the problems of doped quartz fiber element diffusion at high temperature and the instability of microstructure caused by material softening, and can be developed for long-term stable operation at 1200 degrees C high temperature and harsh environments.
DOI	10.1109/jsen.2022.3149508
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收录类别	sci ; ei
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66969
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q. Guo,Z. D. Zhang,Z. M. Zheng,et al. Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing[J]. Ieee Sensors Journal,2022,22(6):5703-5708.
APA	Q. Guo.,Z. D. Zhang.,Z. M. Zheng.,X. P. Pan.,C. Chen.,...&Y. S. Yu and H. B. Sun.(2022).Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing.Ieee Sensors Journal,22(6),5703-5708.
MLA	Q. Guo,et al."Parallel-Integrated Sapphire Fiber Bragg Gratings Probe Sensor for High Temperature Sensing".Ieee Sensors Journal 22.6(2022):5703-5708.

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