Generation of single-frequency radiation at 1064, 1319, and 6595 nm with an all-solid-state, out-of-plane Nd:YAG ring laser

Single-frequency output from a unidirectional, out-of-plane, all-solid-state Nd:YAG ring resonator is demonstrated; the setup can be readily operated at both 1064 and 1319 nm with an end-pumping configuration. High multimode slope efficiencies of 42% were observed at 1064 nm, giving a maximum output power of 1.32 W. A maximum single-frequency, TEM(00) output at 1319 nm of 650 mW was achieved with initial slope efficiencies of 17%. External enhancement cavity frequency doubling in LiB(3) O(5) gave a total single-frequency, TEM(00) output power of 18 mW at 659.5 nm.