Band-rejection fiber filter and fiber sensor based on a Bragg fiber of transversal resonant structure.

@article{Chen2008BandrejectionFF,
  title={Band-rejection fiber filter and fiber sensor based on a Bragg fiber of transversal resonant structure.},
  author={Daru Chen and Tzong-Jer Yang and Jin-Jei Wu and Linfang Shen and Kun-Lin Liao and Sailing He},
  journal={Optics express},
  year={2008},
  volume={16 21},
  pages={16489-95}
}
We propose a novel band-rejection fiber filter based on a Bragg fiber of transversal resonant structure, which can also be used as a fiber sensor. Defect layers are introduced in the periodic high/low index structure in the cladding of the Bragg fiber. Coupling between the core mode and the defect mode results in large confinement loss for some resonant wavelengths inside the band gap of the Bragg fiber. A segment of the Bragg fiber of transversal resonant structure can be used as a band… CONTINUE READING