A high-power diode-pumped Cr-doped LiSrAlF6 (Cr:LiSAF) laser with an o
utput power of 400 mW cw is experimentally demonstrated. The power-sca
lable concept involving at least one cylindrical cavity mirror is disc
ussed with respect to mode-matching requirements and thermal limitatio
ns. Simple arguments indicate that our approach allows one to scale th
e output power of a Cr:LiSAF laser to the multiwatt level. further sup
ported by a comparison with other high-power concepts for diode-pumped
solid-state lasers. (C) 1995 Optical Society of America