Static and dynamic strain fiber Bragg grating sensor interrogation using a monolithically integrated echelle diffractive grating

Honglei Guo; Gaozhi Xiao; Nezih Mrad; Jianping Yao

doi:10.1117/12.885043

17 May 2011 Static and dynamic strain fiber Bragg grating sensor interrogation using a monolithically integrated echelle diffractive grating

Honglei Guo; Gaozhi Xiao; Nezih Mrad; Jianping Yao

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775379 (2011) https://doi.org/10.1117/12.885043
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

We report a miniaturized wavelength interrogator for the static and dynamic strain fiber Bragg grating sensors. The developed interrogator is based on a monolithically integrated echelle diffractive grating and works in two independent modes, one for the static strain measurement and the other for dynamic strain measurement. The proposed interrogator is evaluated by measureing a static strain of 400 με and a dynamic strain of 200 Hz with a peak-to-peak amplitude of 200 με. Initial results are excellent and show that these two interrogation modes can be potentially performed simultaneously.

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Honglei Guo, Honglei Guo, Gaozhi Xiao, Gaozhi Xiao, Nezih Mrad, Nezih Mrad, Jianping Yao, Jianping Yao, } "Static and dynamic strain fiber Bragg grating sensor interrogation using a monolithically integrated echelle diffractive grating", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775379 (17 May 2011); doi: 10.1117/12.885043; https://doi.org/10.1117/12.885043

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