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Proceedings Paper

CW high-power conduction-cooled edge-pumped slab laser
Author(s): William M. Tulloch; Todd S. Rutherford; Eric K. Gustafson; Robert L. Byer
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Paper Abstract

We have developed a high average power zig-zag slab laser based on conduction-cooling and a novel pumping geometry called edge-pumping. The edge-pumping geometry decouples the cooling and optical pumping interfaces, simplifying the laser head design. The advantages of this design include efficient pump absorption, uniform conductive-cooling, high brightness fiber-coupled laser diode pumping, and power scalability. We have demonstrated this new design in a Nd:YAG zig-zag slab laser which operates at 104 W of multimode power for 340 W of pump power with a 40% slope efficiency. TEM00 mode operation was demonstrated at 39.5 W for 250 W of pump power at a slope efficiency of 21%. Thermal lensing measurements indicate an effective focal length of < 0.5 m in both the zig-zag and the non-zig-zag planes for 340 W of pump power.

Paper Details

Date Published: 4 May 1999
PDF: 6 pages
Proc. SPIE 3613, Solid State Lasers VIII, (4 May 1999); doi: 10.1117/12.347664
Show Author Affiliations
William M. Tulloch, Stanford Univ. (United States)
Todd S. Rutherford, Stanford Univ. (United States)
Eric K. Gustafson, Stanford Univ. (United States)
Robert L. Byer, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 3613:
Solid State Lasers VIII
Richard Scheps, Editor(s)

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