Fabrication and Postprocessing of Ge-Doped Nanoweb Fibers

Abstract

The stack and draw technique provides an enormous flexibility and permits to obtain rather complex photonic crystal fibers and other nanoweb structures. It is possible to fabricate Ge-doped microstructured fibers combining silica capillaries and doped wires of silica glass. Here, we will present the fabrication and postprocessing of Ge-doped Y-shaped fibers. These structures may exhibit strong evanescent fields in the air holes, while the presence of a Ge-doped core increases the versatility when designing new fiber-optic components.