Chemical Research in Chinese Universities ›› 2013, Vol. 29 ›› Issue (6): 1199-1202.doi: 10.1007/s40242-013-3114-7

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

WANG Chuang1,2, ZHU Feng1, REN Lin3, LI Ai-wu1, CHEN Chao1, YANG Rui1, GUO Jing-chun1, XUE Yang1, ZHANG Xuan-yu1, ZHU Cong-cong1, CHEN Qi-dai1, YU Yong-sen1   

  1. 1. State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, P. R. China;
    2. 62nd Regiment of Air Force, Qiqihaer 161000, P. R. China;
    3. Information Countermeasure Department, Aviation University of Air Force, Changchun 130022, P. R. China
  • Received:2013-03-13 Revised:2013-05-07 Online:2013-12-01 Published:2013-05-15
  • Contact: YU Yong-sen E-mail:yuys@jlu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.91123027, 90923037).

Abstract:

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.

Key words: Fiber Bragg grating(FBG), Femtosecond laser, Electroplating