Optical waveguide for fiber-optic amplifiers for the wavelength region around 1550 nm

摘要

An optical waveguide for fiber-optic amplifiers is disclosed where the Progression of the fluorescence band of optical waveguides that are doped with erbium and aluminum can be additionally flattened if the core contains fluorine, e.g., in the form of ErF3 and AIF3, as an additional doping agent.