Continuous-wave simultaneous dual-wavelength operation at 912 nm and 1063 nm in Nd:GdVO4
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- Lünstedt, K., Pavel, N., Petermann, K. et al. Appl. Phys. B (2007) 86: 65. doi:10.1007/s00340-006-2338-3
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A continuous-wave, diode-pumped Nd:GdVO4 thin disk laser with simultaneous dual-wavelength emission at the 912 nm 4F3/2→4I9/2 quasi-three-level transition and the 1063 nm 4F3/2→4I11/2 four-level transition is demonstrated and analyzed. Output powers of 1.7 W at 912 nm and of 1.6 W at 1063 nm were achieved simultaneously from a 0.3-at.%, 300-μm thick Nd:GdVO4 crystal that was multi-pass excited with 26.8 W of available diode pump power. Second harmonic generation to 456 nm with LiB3O5 yielded 0.96 W in 912 nm single-wavelength operation and 0.73 W in 912 nm/1063 nm dual-wavelength operation.