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Proceedings Article

CW high-power conduction-cooled edge-pumped slab laser

[+] Author Affiliations
William M. Tulloch, Todd S. Rutherford, Eric K. Gustafson, Robert L. Byer

Stanford Univ. (USA)

Proc. SPIE 3613, Solid State Lasers VIII, 2 (May 4, 1999); doi:10.1117/12.347664
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From Conference Volume 3613

  • Solid State Lasers VIII
  • Richard Scheps
  • San Jose, CA | January 23, 1999

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.

© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

William M. Tulloch ; Todd S. Rutherford ; Eric K. Gustafson and Robert L. Byer
"CW high-power conduction-cooled edge-pumped slab laser", Proc. SPIE 3613, Solid State Lasers VIII, 2 (May 4, 1999); doi:10.1117/12.347664; http://dx.doi.org/10.1117/12.347664


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