Recent Progress on Chalcogenide Negative Curvature Fibers

Abstract

In this paper, we review the recent progress on chalcogenide negative curvature fibers, including gaps to increase confinement, tube structures to suppress higher-order modes, parameters to decrease bend loss, and the experimental demonstration of chalcogenide negative curvature fibers. The advances in negative curvature fibers using chalcogenide glasses enable many applications in the mid-infrared region.