Otto, H.-J.H.-J.OttoModsching, N.N.ModschingJauregui, C.C.JaureguiLimpert, J.J.LimpertTünnermann, A.A.Tünnermann2022-03-132022-03-132015https://publica.fraunhofer.de/handle/publica/400384en620Mode instabilities and the influence of photodarkening in high-power fiber lasersconference paper