Numerical Investigation of Dispersion in As2se3 Suspended-Core Photonic Crystal Fibers Filled with Carbon Disulfide

We present a novel study on the dispersion properties of suspended-core fibers fabricated from arsenic selenide glass infiltrated with carbon disulfide. This specific fiber structure, to our knowledge, has not been studied previously. By replacing air holes with carbon disulfide, a significant modification of the dispersion characteristics is achieved, providing flattened and close-to-zero dispersion characteristics in both dispersion regimes. This unique dispersion engineering makes CS₂-infiltrated As₂Se₃ suspended-core fibers highly promising for generating smooth and broadband supercontinuum spectra in the near-infrared region. These results highlight the unexplored potential of this suspended-core fibers for advanced nonlinear photonic applications.