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

Zhihao Geng | Zendy; Ning Wang | Zendy; Keyao Li | Zendy; Hui Won Kang | Zendy; Xun Xu | Zendy; Xing Liu | Zendy; Weicheng Wang | Zendy; Hongzhi Jia | Zendy

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

Author(s) -

Zhihao Geng,

Ning Wang,

Keyao Li,

Hui Won Kang,

Xun Xu,

Xing Liu,

Weicheng Wang,

Hongzhi Jia

Publication year - 2020

Publication title -

plos one

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.99

H-Index - 332

ISSN - 1932-6203

DOI - 10.1371/journal.pone.0232982

Subject(s) - photonic crystal fiber , dispersion (optics) , refractive index , materials science , graded index fiber , fiber , optics , optoelectronics , physics , composite material , fiber optic sensor

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 TE 0,1 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, Δn eff 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.

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