• Optoelectronics Letters
  • Vol. 8, Issue 6, 414 (2012)
Qian ZHOU, Ti-gang NING, Li PEI*, Jing LI, Chao LI, and Chan ZHANG
Author Affiliations
  • Key Lab. of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China
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    Abstract

    A fiber Bragg grating strain sensor, whose reflection bandwidth is insensitive to temperature, is presented. The cross-sectional area is designed to change linearly. Under axial stress, there is a linear relationship between stress and average strain. Experimental results show that when temperature increases, reflection center wavelength shifts to longer wavelength, and there is a good linear relationship between center wavelength and temperature. When stress increases, reflection center wavelength shifts to longer wavelength, and reflection bandwidth increases. There are good linear relationships between reflection center wavelength and stress as well as reflection bandwidth and stress.
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    ZHOU Qian, NING Ti-gang, PEI Li, LI Jing, LI Chao, ZHANG Chan. Temperature-insensitive fiber Bragg grating strain sensor[J]. Optoelectronics Letters, 2012, 8(6): 414
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    Received: May. 8, 2012
    Accepted: --
    Posted: Jun. 1, 2012
    Published Online: Jul. 12, 2017
    The Author Email: Li PEI (lipei@bjtu.edu.cn)