A recent paper [ J. Opt. Soc. Am. B 23, 1074 (2006) ] on power-scaling aspects of thin-disk lasers is based on a wrong assumption concerning the impact of amplified spontaneous emission, which is greatly overestimated. As a consequence of this and two other issues, the evaluated power-scaling limits—which are close to already realized performance values—are substantially too low.
© 2007 Optical Society of America
Lasers and Laser Optics
Original Manuscript: August 21, 2006
Manuscript Accepted: February 9, 2007
Published: September 21, 2007
Rüdiger Paschotta, Jochen Speiser, and Adolf Giesen, "Comment on "Surface loss limit of the power scaling of a thin-disk laser"," J. Opt. Soc. Am. B 24, 2658-2658 (2007)