Russbueldt, P.P.RussbueldtHoffmann, D.D.HoffmannHöfer, M.M.HöferLöhring, J.J.LöhringLuttmann, J.J.LuttmannMeissner, A.A.MeissnerWeitenberg, J.J.WeitenbergTraub, M.M.TraubSartorius, T.T.SartoriusEsser, D.D.EsserWester, R.R.WesterLoosen, P.P.LoosenPoprawe, R.R.Poprawe2022-03-042022-03-042015https://publica.fraunhofer.de/handle/publica/23979310.1109/JSTQE.2014.2333234The Innoslab amplifier comprises a diode-laser partially end-pumped thin slab crystal and a folded single-pass optical amplification path. While this configuration differs in many respects from other slab amplifiers, it shares characteristics with partially end-pumped rod amplifiers. It combines outstanding thermal management, efficiency, and beam quality in the 100 W to 1 kW power range. In this paper, we review amplifiers for a wide range of operation regimes and laser materials.en621journal article