Lautenschläger, JanJanLautenschlägerRomano, ClémentClémentRomanoLorenz, DominikDominikLorenzSchneider, JulianJulianSchneiderPanitzek, DieterDieterPanitzekRupp, MariusMariusRuppEichhorn, MarcMarcEichhornKieleck, ChristelleChristelleKieleck2025-02-032025-02-032024https://publica.fraunhofer.de/handle/publica/48318510.1364/ASSL.2024.JW2A.30A compact, high-power 1931 nm diode-pumped, all-fiber MOPA laser with up to 100 W of output power and narrow linewidth is demonstrated. The laser achieves a slope efficiency as high as 59 %.enconference paper