We demonstrate a novel green laser source, based on a monolithic cavity microchip laser platform. The use of our highly efficient, Periodically Poled MgO-doped Lithium Niobate (PPMgOLN) as the frequency doubler allows obtaining a significant increase in the overall efficiency of the green microchip laser. Specifically, we demonstrate 200mW green output and >10% wall-plug efficiency in the 35°C temperature range.
Abstract— A novel green laser source, based on a monolithic cavity microchip laser platform, has been developed. The laser is designed to be a part of a miniature and efficient RGB light source for microdisplay‐based mobile projector devices. The use of highly efficient, periodically poled MgO‐doped lithium niobate as the non‐linear frequency doubler allows for a significant increase in the overall efficiency of the green microchip laser. Specifically, a 50–150‐mW green output with a wall‐plug efficiency exceeding 10% in the temperature range of greater than 40°C has been demonstrated. A compact package for this laser source with a volume less than 0.33 cm3 is discussed and results of performance tests are presented.
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