Answers are grounded in this paper and cite their sources.
A planar waveguide Nd:YAG laser is pumped with 430 W of power from 10 laser diode bars to produce a multimode output power of 150 W at an optical efficiency of 35%. Use of a hybrid resonator of the positive-branch confocal unstable type for the lateral axis and of one of the near-case I waveguide type for the transverse axis increased the laser brightness by a factor of ~26 with only 12% less power than in the multimode case.
No takes yet. Share an insight, caveat, or question.
Lee et al. (2002) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: