All-solid-state continuous-wave doubly resonant all-intracavity cyan laser at 500.8 nm by sum-frequencymixing in double-crystal RTP generation

A new resonator design for doubly resonant continuous-wave (CW) cyan laser at 500.8 nm intracavity sum-frequency mixing in double-crystal RTP was reported. 392 mW of cyan laser at 500.8 nm was generated by mixing 1064 nm Nd:YVO 4 laser and 946 nm Nd:YAG laser. The beam quality M 2 value was equal to 1.5 in both horizontal and vertical directions at the maximum output power.