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Innoslab amplifiers

: Russbueldt, P.; Hoffmann, D.; Höfer, M.; Löhring, J.; Luttmann, J.; Meissner, A.; Weitenberg, J.; Traub, M.; Sartorius, T.; Esser, D.; Wester, R.; Loosen, P.; Poprawe, R.


IEEE Journal of Selected Topics in Quantum Electronics 21 (2015), No.1, Art. 3100117, 17 pp.
ISSN: 1077-260X
Journal Article
Fraunhofer ILT ()

The 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.