Under CopyrightBeattie, M.M.BeattieHelmers, HenningHenningHelmersValdivia, C.E.C.E.ValdiviaLackner, DavidDavidLacknerHöhn, OliverOliverHöhnHinzer, K.K.Hinzer2022-03-143.8.20212021https://publica.fraunhofer.de/handle/publica/41169910.24406/publica-fhg-411699Single-junction photonic power converters designed for operation in the telecommunications O-band are measured under 1319-nm laser illumination with a range of beam diameters. Device performance is found to improve with increasing beam size as the illumination becomes more uniform. Two absorber materials are evaluated in this study, InGaAsP lattice-matched to InP and metamorphic GaInAs on lattice-mismatched GaAs with maximum efficiencies of 52.9% and 48.8% respectively.enPhotovoltaiknon-uniform illuminationphotonic powerphotonic power converterPower-by-Lightpower-over-fiberIII-V und Konzentrator-PhotovoltaikIII-V Epitaxie und Solarzellen621697conference paper