Continuous wave laser radiation at 669 nm from a self-frequency-doubled laser of YAl3(BO3)4:Nd3+

Abstract

We report on continuous-wave red laser radiation at 669 nm from a self-frequency-doubled laser of YAl3(BO3)4:Nd3+ operating at a fundamental wavelength of 1338 nm in the F3/24→I13/24 laser channel of Nd3+ ion. Main laser characteristics at the fundamental wavelength are investigated as well as second harmonic generation properties. In nonoptimal preliminary experiments, 1 mW of red radiation is obtained for 900 mW pump power from a Ti:sapphire laser.