Du, K.K.DuBaumann, M.M.BaumannEhlers, B.B.EhlersTreusch, H.G.H.G.TreuschLoosen, P.P.Loosen2022-03-092022-03-091997https://publica.fraunhofer.de/handle/publica/328274A technique for coupling the output of a high-power diode laser bar into one multimode fiber with high efficiency, easy alignment requirements and low manufacturing costs is demonstrated using a single fiber with 400 mu m core diameter. This technique comprises two micro step-mirrors for beam shaping. The overall efficiency from diode-laser to fiber is 71 per cent with 20 W cw laser power through the fiber.endiode laser arrayfiber-optic componentslaser beam shapingoptical system design621conference paper