Recent developments in compact projectors sparked interest in light sources for these applications. While RGB lasers
offer advantages, a viable green laser platform has been difficult to realize. In this work, we demonstrate a novel green
laser source, based on a monolithic cavity microchip laser platform. The use of highly efficient, periodically poled MgOdoped
Lithium Niobate (PPMgOLN) as the nonlinear frequency doubler allows obtaining a significant increase in the
overall efficiency of the green microchip laser. Specifically, we demonstrate 50-150mW green output with wall-plug
efficiency exceeding 10% in the temperature range over 40°C. We discuss a compact package for this laser source with
volume less than 0.4cm3.
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