Studies on LD end-pumped Nd∶GdVO_4/KTP Intra-cavity-frequency-doubling Green Laser

An LD end-pumped Nd∶GdVO4,KTP Intra-cavity frequency doubling Green Laser at 531.7 nm is reported.Using simple compact flat-concave cavity,531.7 nm continuous green laser is obtained by 1 063.4 nm Intra-cavity frequency doubling with KTP crystal.When the incident pump power is about 12 W,the stable output power of 372 mW was achieved at 531.7 nm.The optical-to-optical conversion efficiency is up to 3.1% and the power fluctuation is less than ±1.2% for 0.5 h.