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Plasmonics

, Volume 13, Issue 4, pp 1271–1275 | Cite as

A Polarization Filter Based on Photonic Crystal Fiber with Symmetry Around Gold-Coated Holes

  • Xinxing Feng
  • Huijing Du
  • Shuguang Li
  • Yinan Zhang
  • Qiang Liu
  • Xinyu Gao
Article

Abstract

We propose a modified design for a photonic crystal fiber (PCF) polarization filter based on surface plasmon resonance (SPR). The air holes are arrayed in diamond lattices, and the diameter of the holes around the gold-coated holes are different that can separate the refractive index of the x-polarization and y-polarization second order surface plasmon polariton (SPP) modes. The influences of structural parameters of the photonic crystal fiber (PCF) on the filter characteristics are studied using the finite element method (FEM). Great changes have taken place in the results of numerical simulation by changing the thickness of the gold film and air hole diameter. Simulation results show that the resonance wavelength is communication wavelength 1550 mm, the loss of the y-polarization mode is 43,126.7 dB/m. When the length of the fiber is 500 μm, extinction ratio is more than 20 dB at the communication wavelength, and bandwidth achieve to 190 nm. It is an important property of PCF polarization filter in production.

Keywords

Photonic crystal fiber Surface plasmon resonance Polarization filter 

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 61475134 and 61505175).

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Xinxing Feng
    • 1
  • Huijing Du
    • 1
  • Shuguang Li
    • 1
  • Yinan Zhang
    • 1
  • Qiang Liu
    • 1
  • Xinyu Gao
    • 1
  1. 1.Key Laboratory of Metastable Materials Science and Technology, College of ScienceYanshan UniversityQinhuangdaoPeople’s Republic of China

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