Strain sensor based on a pair of single-mode-multimode-single-mode fiber structures in a ratiometric power measurement scheme.

@article{Hatta2010StrainSB,
  title={Strain sensor based on a pair of single-mode-multimode-single-mode fiber structures in a ratiometric power measurement scheme.},
  author={Agus Muhamad Hatta and Yuliya Semenova and Qiang Wu and Gerald Farrell},
  journal={Applied optics},
  year={2010},
  volume={49 3},
  pages={536-41}
}
The strain and temperature dependencies of a step-index single-mode-multimode-single-mode (SMS) fiber structure are investigated numerically and experimentally. For intensity-based strain measurement using a single SMS fiber structure, at a selected wavelength, it is found that there is a high strain dependence, but also a temperature dependence that will induce strain measurement error. To minimize the temperature-induced strain measurement error, two SMS fiber structures are proposed and… CONTINUE READING
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