Diagnosing and addressing the limitations to lateral far field angle in high power broad-area diode lasers
P. Crump, S. Böldicke, C.M. Schultz, H. Ekhteraei, H. Wenzel and G. Erbert
Published in:
IEEE Summer Topical - High-Power Semiconductor Laser, Seattle, USA, Jul 9-11, pp. 63-64 (2012).
Abstract:
We show experimentally that thermal lensing largely determines the lateral mode properties of broad-area lasers. However, additional broadening is observed at high powers, which will limit how effectively modefiltering techniques can improve beam quality.
Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
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