Continuous-wave dual-wavelength Nd:YVO4 laser at 1066.4Â nm and 1083.8Â nm

A LD end-pumped continuous-wave (CW) Nd:YVO4 laser with synchronous dual-wavelength operation at 1066.4 nm and 1083.8 nm is demonstrated. The threshold at 1083.8 nm is only 0.75 W due to the high Nd3+-doping-concentration of a Nd:YVO4 gain crystal. At a pump power of 3.9 W, the maximum CW total output power of 480 mW is obtained. The full width at half maximum (FWHM) at 1066.4 and 1083.8 nm are 2.2 nm and 2.1 nm, respectively.