Cladding-Mode Backward-Recoupling-Based Displacement Sensor Incorporating Fiber Up Taper and Bragg Grating

@article{Qi2013CladdingModeBD,
  title={Cladding-Mode Backward-Recoupling-Based Displacement Sensor Incorporating Fiber Up Taper and Bragg Grating},
  author={Tao Qi and Shilin Xiao and Jie Shi and Lilin Yi and Zhao Zhou and Meihua Bi and Weisheng Hu},
  journal={IEEE Photonics Journal},
  year={2013},
  volume={5},
  pages={7100608-7100608}
}
A temperature-insensitive fiber-optic displacement sensing scheme by cascading the fiber up taper and Bragg grating is experimentally demonstrated. The strength-robust up taper, which is fabricated by excessively splicing the Bragg grating to the interrogation fiber, functions as the bridge between the core mode and the cladding modes. This cascading structure realizes the cladding-mode backward recoupling, and displacement information can be directly read out by measuring the power of the… CONTINUE READING