Numerical investigation of cross-talk in chalcogenide triangular lattice fibers with three sublattices for mid-infrared image transport

We have numerically analyzed the cross-talk in triangular lattice fibers (TLFs) with three sublattices made of chalcogenide glasses for high-resolution mid-IR image transport. The TLFs are composed of cores with three different diameters arranged on triangular sublattices. We determined the core diameters and the core spacing to minimize the cross-talk and to densely align the cores. In addition, we demonstrated that the core density in TLFs with three sublattices is 2.3 times higher than without sublattices.