Du, K.K.DuWu, N.N.WuXu, J.J.XuGiesekus, J.J.GiesekusLoosen, P.P.LoosenPoprawe, R.R.Poprawe2022-03-032022-03-031998https://publica.fraunhofer.de/handle/publica/19313010.1364/OL.23.0003702-s2.0-0000212283A Nd:YAG slab is partially end pumped by a diode laser stack with three diode laser bars. The pumped volume has a rectangular cross section. A hybrid resonator which is stable in the plane of small dimension and is off-axis unstable in the plane of large dimension of the gain cross section, was used to yield highly efficient laser operation at diffraction-limited beam quality. The laser design and experimental results are reported.enbirefringencedepolatizationdiode laser bargain cross sectionhybrid resonatormicrochannel cooler621535journal article