Diode-Pumped Cw Nd:Yag Laser At 1116 Nm Based On The F-4(3/2)-I-4(11/2) Transition

We describe the output performances of the 1116 nm (4) F (3/2)-(4) I (11/2) transition (generally used for a 1064 nm transition) in Nd:YAG under in-band pumping with diode laser at the 809 nm wavelength. An end-pumped Nd:YAG crystal yielded 680 mW of continuous-wave (CW) output power for 18.2 W of incident pump power. Moreover, intracavity second-harmonic generation (SHG) has also been achieved with a power of 97 mW at 558 nm by using a LiB3O5 (LBO) nonlinear crystal. The yellow-green beam quality factor M (2) was less than 1.21. The yellow-green power stability was less 2.5% in 4 h.