LBO Type-I critical Phase-matched Intracavity Sum-frequency Mixing 555 nm Laser

A all solid-state continuous-wave laser at 555 nm is reported first time.946 nm wavelength is obtained from 4F3/2-4I9/2 transition in Nd: YAG and 1342 nm wavelength is obtained from 4F3/2-4I13/2 transition in Nd: YVO4.The laser at 555 nm is obtained by using a doubly folded-cavity,type-I critical phase matching LBO crystal intracavity sum frequency mixing by 946 nm and 1342 nm,with incident pumped power of 20 W in Nd: YAG and 10 W in NdYVO4,TEM00 mode laser at 555 nm of 1.06 W is obtained at last.The power stability in 4h is better than ±3.3%.Experimental results show that the intracavity sum-frequency mixing is an effective method for 555 nm laser and it can be applied to other two laser crystals to obtain more all-solid-state lasers with different wavelength.