Investigation of Rare Earth Elements for Solar Pumped Fiber Amplifier

摘要

In this paper, we investigate the suitability of two commonly used rare earth ions viz. Erbium and Ytterbium for building a solar pumped fiber amplifier. Based on the solar spectrum and the absorption cross section for the rare earth ions we find that the Ytterbium is more suitable since it has a larger net absorption over the solar spectrum.