This document may be downloaded, read, stored and printed for your own use within the limits of § 53 UrhG but it may not be distributed via the internet or passed on to external parties.Dieses Dokument darf im Rahmen von § 53 UrhG zum eigenen Gebrauch kostenfrei heruntergeladen, gelesen, gespeichert und ausgedruckt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.Radziunas, MindaugasFuhrmann, JürgenZeghuzi, AnissaWünsche, Hans-JürgenKoprucki, ThomasBrée, CarstenWenzel, HansBandelow, Uwe2019-03-072019-06-2820182198-5855https://doi.org/10.34657/2260https://oa.tib.eu/renate/handle/123456789/2735In this work, we discuss the modeling of edge-emitting high-power broad-area semiconductor lasers. We demonstrate an efficient iterative coupling of a slow heat transport (HT) model defined on multiple vertical-lateral laser cross-sections with a fast dynamic electro-optical (EO) model determined on the longitudinal-lateral domain that is a projection of the device to the active region of the laser. Whereas the HT-solver calculates temperature and thermally-induced refractive index changes, the EO-solver exploits these distributions and provides time-averaged field intensities, quasi-Fermi potentials, and carrier densities. All these time-averaged distributions are used repetitively by the HT-solver for the generation of the heat sources entering the HT problem solved in the next iteration step.application/pdfeng510Broad area lasersmodelingtraveling wavecurrent spreadingheat transportiterative couplingdifferent time scalesfinite volumesefficient implementationReport