23 February 2009 Beam quality dependent SHG using edge-emitting lasers and a 50 mm bulk PPLN crystal
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In this paper we present a study of the single pass normalized second harmonic generation (SHG) conversion efficiency as a function of the beam propagation factor M2 and the beam diameter in the lateral and vertical direction. It can be shown that an increase in M2 results in dramatic changes for the optimal focusing conditions, in comparison to the SHG with a Gaussian beam. Based on the results of the measurements we developed a model to simulate the focusing conditions for partial coherent beams.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mirko Uebernickel, Mirko Uebernickel, Gunnar Blume, Gunnar Blume, Christian Fiebig, Christian Fiebig, Christian Kaspari, Christian Kaspari, David Feise, David Feise, Katrin Paschke, Katrin Paschke, Arnim Ginolas, Arnim Ginolas, Reiner Güther, Reiner Güther, Bernd Eppich, Bernd Eppich, Götz Erbert, Götz Erbert, } "Beam quality dependent SHG using edge-emitting lasers and a 50 mm bulk PPLN crystal", Proc. SPIE 7197, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, 71970F (23 February 2009); doi: 10.1117/12.807429; https://doi.org/10.1117/12.807429


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