Coherent mid-infrared supercontinuum generation in a cascade of silica, fluoride, and chalcogenide fibers

Abstract

We present a supercontinuum spanning 1.8 µm to 3.2 µm from a passive cascade of anomalous silica fiber, anomalous ZBLAN fiber, and all-normal chalcogenide fiber taper. The resulting supercontinuum preserve coherence despite the cascaded architecture.