Ultra-high Germanium-contained Se-Chalcogenide Glass Fiber for Mid-infrared

Abstract A chemically stoichiometric chalcogenide(ChG) glass fiber with ultra-high germanium-containing has been realized for the first time. Here, an isolated extrusion (ISE) with a peeled-off method was carried out for the fiber fabrication with glasses of core Ge33As12.5Se54.5 and cladding Ge33As12Se55. The fiber exhibits an excellent optical loss of