Equiangular spiral tellurite photonic crystal fiber for supercontinuum generation in Mid-Infrared

We demonstrate very low and flat dispersion (±2ps/nm/km, slope<;0.0028ps/nm<sup>2</sup>/km@1.8-2μm) in the Mid-Infrared band along with high non-linear coefficient (γ=1155W<sup>-1</sup>km<sup>-1</sup>@1.93μm) achieved in a tellurite photonic crystal fiber for generating supercontinuum with a broad bandwidth.