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