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K. Li, N. Copner, C. B. E. Gawith and I. G. Knight

Abstract

532nm green light source of 1.2W output is generated by intra-cavity frequency doubling (ICFD) of a multi-edge-emitter laser bar using a MgO-doped periodically poled lithium niobate (MgO:PPLN) bulk crystal. The measured M2 values of green beam are 11.9 and 2.6 along the x- and y-axes respectively. To our knowledge this is the first demonstration of the ICFD of a multi-edge-emitter laser bar.

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