Abstract
Output performances of Nd-vanadate lasers with simultaneous dual-wavelength emission on the 1.06-μm 4 F 3/2 → 4 I 11/2 transition and the 4 F 3/2 → 4 I 13/2 transition at 1.34 μm are discussed. The design uses a linear resonator for emission at 1.06 μm and an L-type folded resonator for the 1.34-μm wavelength, and the ratio between the power of a single wavelength and the total power is adjusted by the choice of the output mirror transmissions. A continuous-wave (CW) Nd:GdVO4 laser with total output power in the range of 3.9 to 6.8 W and the corresponding ratio of the output power at 1.06 μm to the total output power between 0.26 and 0.97 is realized. It is also shown that in comparison with the pump at 808 nm, the pump directly into the 4 F 3/2 emitting level at 879 nm improves the total output power. Furthermore, a Nd:GdVO4 laser with simultaneous emission at 1.06 and 1.34 μm and that generates also green light at 0.53 μm by intracavity frequency-doubling with LiB3O5 (LBO) nonlinear crystal is demonstrated.
Published Version
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