Uj. Greiner et Hh. Klingenberg, THERMAL LENS CORRECTION OF A DIODE-PUMPED NDYAG LASER OF HIGH TEM(00)POWER BY AN ADJUSTABLE-CURVATURE MIRROR, Optics letters, 19(16), 1994, pp. 1207-1209
Highly efficient TEM00-mode laser power of 11.5 W was obtained by the
diode-array side pumping of a Nd:YAG rod. We maintained efficient lase
r operation at all pump powers by correcting for the changing thermal
lens with an adjustable-curvature mirror.