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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 27 — Sep. 20, 2010
  • pp: 5157–5162

Efficient pump beam shaping for high-power thin-disk laser systems

Rui Pereira, Birgit Weichelt, Dawei Liang, Paulo J. Morais, Helena Gouveia, Marwan Abdou-Ahmed, Andreas Voss, and Thomas Graf  »View Author Affiliations


Applied Optics, Vol. 49, Issue 27, pp. 5157-5162 (2010)
http://dx.doi.org/10.1364/AO.49.005157


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Abstract

We report a beam-shaping technique whereby the output power from a high-power laser-diode stack is efficiently coupled, reconfigured, and transmitted to a thin-disk laser by means of a compact optical fiber bundle. By using this technique, the power density is increased by a factor of 2 when compared to direct coupling with a octagonal fused silica rod while the numerical aperture is kept constant. Transmission efficiency of 80% was measured for the beam shaper without antireflection coating. The top-hat distribution is numerically calculated at the thin-disk laser crystal.

© 2010 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: June 23, 2010
Manuscript Accepted: August 4, 2010
Published: September 16, 2010

Citation
Rui Pereira, Birgit Weichelt, Dawei Liang, Paulo J. Morais, Helena Gouveia, Marwan Abdou-Ahmed, Andreas Voss, and Thomas Graf, "Efficient pump beam shaping for high-power thin-disk laser systems," Appl. Opt. 49, 5157-5162 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-27-5157


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References

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