LD pumped 1347 nm laser with a novel Nd:GdNbO4 crystal

A diode-pumped 1347 nm laser with a novel Nd:GdNbO4 crystal is demonstrated for the first time to our best knowledge. Laser performance around 1.3 μm under 879 nm laser diode pumping is investigated with different output mirrors, pump radii and repetition rates. A maximum average power of ∼ 373 mW at 1347 nm is achieved at 50 Hz, corresponding to an optical-to-optical efficiency of 5.5% and a slope efficiency of 6.8%.