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

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 ?m to 1.65 ?m. This property can be used to generate a supercontinuum with 200 ?m long zero dispersion wavelength (ZDM). In addition, ?neff 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.

SUBMITTER: Geng Z 

PROVIDER: S-EPMC7224559 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature