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Intracavity coherent addition of Gaussian beam distributions using a planar interferometric coupler

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4 Author(s)
Ishaaya, A.A. ; Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel ; Davidson, N. ; Shimshi, L. ; Friesem, A.A.

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We present a compact and practical combined laser resonator configuration in which several Gaussian beam distributions are efficiently combined. It is based on intracavity coherent addition of pairs of Gaussian beam distributions with a planar interferometric coupler. The principle, configuration, and experimental results using pulsed Nd:YAG laser beams are presented. The results reveal more than 92% combining efficiency with a nearly Gaussian output beam, in free running and Q-switched operation.

Published in:

Applied Physics Letters  (Volume:85 ,  Issue: 12 )