HIGH GAIN COEFFICIENT PHOSPHATE GLASS FIBER AMPLIFIER

摘要

High gain density materials offer the potential of compact configurations amenable to integration of gain into telecom modules, which are increasingly becoming high packing density configurations. Such modules may function as 'loss-less' splitters, wavelength filters and demux's, dispersion compensators, switches, add-drop nodes, and the like. These components are becoming much more prevalent in fiber based communication systems as data rates increase and switching and routing moves more into the optical layer. To this end, phosphate glass material, with its high solubility for rare earth ions, is an attractive host candidate. The focus of this particular work is to explore the physical and dimensional parametrics associated with rare earth doped phosphate glass host material for the purpose of determining its benefits, limitations, and suitability as a compact gain media, and understanding its design trade space for design optimization. Within this domain, core design parameters including index delta, core diameter, pump parameters, coupling interface, and rare earth doping densities, are the dominant parametrics of interest.