Lorenz, DominikDominikLorenzRomano, ClémentClémentRomanoPanitzek, DieterDieterPanitzekForster, PatrickPatrickForsterSchneider, JulianJulianSchneiderLautenschläger, JanJanLautenschlägerEichhorn, MarcMarcEichhornKieleck, ChristelleChristelleKieleck2024-04-162024-04-162024https://publica.fraunhofer.de/handle/publica/46608310.1117/12.3003070We report on the scaling of a polarization-maintaining MOPA at a signal wavelength of 2048 nm, designed for pumping an optical parametric oscillator (OPO). By utilizing the MOPA structure to design suitable OPO pump pulses the overall mid-IR conversion efficiency is enhanced enabling the scaling of the mid-IR average power. 60 W of average power is achieved and applied to pump different ZGP OPOs. The resonator designs are investigated and compared regarding scalability and beam quality.enpresentation