Diode pumped single frequency coupled cavity Nd:YVO4 laser at 532 nm wavelength

We report here on a new compact frequency-doubled Nd:YVO4 laser emitting up to 165 mW of single frequency, TEM() mode. 532 nfl green laser output. This compact, high efficiency, single frequency laser incorporating a novel coupled cavity technology appears promising for use in holographics and the printing industry. This coupled cavity technology provides for a frequency-doubled laser capable of operating in single longitudinal mode while eliminating many intracavity optical components, such as polarizers, waveplates or etalons. The few intracavit\ elenieiits include a KTP nonlinear optical crystal employed for intracavity frequency doubling. The reduced component count results in a dramatic reduction in optical losses in the laser cavity and increased efficiency. This laser device produces 165mW of green laser output power from a 1 W pumping laser diode, illustrating that both power and efficiency ar