Robust High Temperature Sensor Probe Based on a Ni-coated Fiber Bragg Grating

• Published in: Chemical research in Chinese universities Vol. 29; no. 6; pp. 1199 - 1202
• Main Authors: Wang, Chuang, Zhu, Feng, Ren, Lin, Li, Ai-wu, Chen, Chao, Yang, Rui, Guo, Jing-chun, Xue, Yang, Zhang, Xuan-yu, Zhu, Cong-cong, Chen, Qi-dai, Yu, Yong-sen
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2013; State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, P.R.China; 62nd Regiment of Air Force, Qiqihaer 161000, P.R.China%State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering,Jilin University, Changchun 130012, P.R.China%Information Countermeasure Department, Aviation University of Air Force, Changchun 130022, P.R.China
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Inorganic Chemistry; Organic Chemistry; Physical Chemistry; 传感器探头; 光纤光栅; 光纤布拉格光栅; 机械强度; 镍涂层; 飞秒激光; 高温度; 高灵敏度; Femtosecond laser; Electroplating; Fiber Bragg grating(FBG)
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-013-3114-7

A robust high temperature sensor probe based on a Ni-coated fiber Bragg grating（FBG） was fabricated by Ni electroplating of femtosecond laser written FBG. The probe can resist high temperature up to 800℃ with a high sensitivity of 32.2 pm/℃. It also has a good mechanical strength even after high temperature annealing. The thermal strain of the probe was simulated by the finite element method（FEM）. The Bragg resonant wavelength shift with temperature and its sensitivity change with the thickness of the Ni-coated layer were also calculated.