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A Photonic crystal fiber with large effective refractive index separation and low dispersion

Author

Listed:
  • Zhihao Geng
  • Ning Wang
  • Keyao Li
  • Hui Kang
  • Xun Xu
  • Xing Liu
  • Weicheng Wang
  • Hongzhi Jia

Abstract

A photonic crystal fiber (PCF) structure with a ring-core and 5 well-ordered semiellipse air-holes has been creatively proposed. Through a comparison between the structures with a high refractive index (RI) ring-core and the structure without, it conclude that a PCF with a high RI ring-core can work better. Schott SF57 was elected as the substrate material of ring-core. This paper compares the effects of long-axis and short-axis changes on the PCF and selects the optimal solution. Especially TE0,1 mode’s dispersion is maintained between 0 and 3 ps / (nm · km) ranging from 1.45 μm to 1.65 μm. This property can be used to generate a supercontinuum with 200 μm long zero dispersion wavelength (ZDM). In addition, Δneff reaches up to 10−3, which enables the near -degeneracy of the eigenmodes to be almost neglected. The proposed PCF structure will have great application value in the field of optical communications.

Suggested Citation

  • Zhihao Geng & Ning Wang & Keyao Li & Hui Kang & Xun Xu & Xing Liu & Weicheng Wang & Hongzhi Jia, 2020. "A Photonic crystal fiber with large effective refractive index separation and low dispersion," PLOS ONE, Public Library of Science, vol. 15(5), pages 1-15, May.
    • Handle: RePEc:plo:pone00:0232982
    DOI: 10.1371/journal.pone.0232982
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