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, MindaugasTronciu, Vasile Z.Bandelow, UweLichtner, MarkSpreemann, MartinWenzel, Hans2016-03-242019-06-2820080946-8633https://doi.org/10.34657/2666https://oa.tib.eu/renate/handle/123456789/2037Theoretical and experimental investigations have been carried out to study the spectral and spatial behavior of monolithically integrated distributed-feedback tapered master-oscillators power-amplifiers emitting around 973 nm. Introduction of self and cross heating effects and the analysis of longitudinal optical modes allows us to explain experimental results. The results show a good qualitative agreement between measured and calculated characteristics.application/pdfeng510Master oscillatorpower amplifiertaperlongitudinal mode analysisReport