We report for the first time a Nd:LuVO 4 laser operating in a continuous wave (CW) on the true three-level laser at 880 nm, based on the 4 F 3/2 -4 I 9/2 transition. CW 345 mW output power at 880 nm is obtained under 18.2 W of incident pump power. Moreover, the intracavity second-harmonic generation (SHG) has also been achieved with a blue power of 37 mW by using a LiB 3 O 5 (LBO) nonlinear crystal. Output powers at 880 and 440 nm versus pump power at 809 nm
We report for the first time a Nd:GdVO4 laser operating in a continuous wave (CW) on the quasi-three-level laser at 893 nm, based on the 4F3/2 – 4I9/2 transition, generally used for a 912 nm emission. The use of a pump module with 16 passes through the crystal allowed the realization of a Nd:GdVO4 thin-disk laser with 157 mW of CW output power at 893 nm. Moreover, intracavity second-harmonic generation (SHG) has also been achieved with a power of 23 mW at 447 nm by using a BiB3O6 (BiBO) nonlinear crystal.
We report a coherent blue-green radiation at 497 nm by self-sum-frequency generation of the 936 and 1060 nm laser-lines of the Nd:YCa4O(BO3)3 (Nd:YCOB) crystal. With a diode pump power of 14.3 W, the maximum blue-green output power of 75 mW is obtained. The beam quality M2 value is 1.22 in both horizontal and vertical dimensions. The output power stability over 30 min is better than 4.1%. To the best of our knowledge, this is first work on self-sum-frequency generation of a diode pumped Nd:YCOB laser at 497 nm.
We report what is believed to be the first demonstration of diode-pumped continuous-wave (CW) thin-disk Yb3+-doped Gd2SiO5 (Yb:GSO) laser at 1048 nm. With a 3.8% output coupler, the maximum output power is 1.38 W under a pump power of 17.8 W. Moreover, intracavity second-harmonic generation (SHG) has also been achieved with a power of 337 mW at 524 nm by using a LiB3O5 (LBO) nonlinear crystal. At the output power level of 337 mW, the green power stability is better than 5% and the ellipticity of spot is 0.97.
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