Abstract

We have demonstrated an optically pumped vertical-external-cavity surface-emitting laser (OP-VECSEL) generating more than 20W of cw output power in a fundamental transverse mode (M21.1) at 960nm. The laser is highly efficient with a slope efficiency of 49%, a pump threshold of 4.4W, and an overall optical-to-optical efficiency of 43%.

© 2008 Optical Society of America

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