We report the design and the operation of a novel two-head, side-pumped Nd:
YLF laser that generates up to 25 W TEM00 output power at 1.053 mu m. The a
nisotropic thermal lensing of each laser head has been examined and compens
ated with cylindrical lenses. The output power of this two-head laser exhib
its excellent dynamic range with a typical optical-optical conversion effic
iency of 18%. (C) 1999 Elsevier Science B.V. All rights reserved.