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Coherence enhancement in optical parametric devices pumped by multitransversal-mode beams

V. Pasiskevicius, F. Laurell, H. Karlsson, V. Smilgevicius, and A. Piskarskas

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Abstract

Coherence properties were investigated in multi-transversal-mode-pumped PPKTP OPG and OPO. Generation of totally spatially coherent signal is demonstrated in the devices pumped by conical beams. The demonstrated degrees of spatial and temporal coherence of OPO signal exceed those of the pump.

© 2002 Optical Society of America

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