Red, blue, and green laser-light generation from the NYAB nonlinear crystal

Continuous wave red, green, and blue laser light are generated under IR-pumping crystals of Nd 3ϩ :YAl 3 (BO 3 ) 4 by a Ti:sapphire laser.The red (669-nm) and green (532-nm) radiations are obtained by self-frequency doubling of the fundamental laser lines at 1338 nm ( 4 F 3/2 → 4 I 13/2 channel) and 1062 nm ( 4 F 3/2 → 4 I 11/2 channel), respectively.Blue laser radiation (458 nm) is achieved by self-sum-frequency mixing of the main laser line at 1062 nm and the pumping radiation at 807 nm.The main spectroscopic and nonlinear properties of this crystal are included.In addition, a simple model devoted to optimizing the blue radiation is provided.