5.3 W deep-blue light generation by intra-cavity frequency doubling of Nd:GdVO4
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- Jia, F., Xue, Q., Zheng, Q. et al. Appl. Phys. B (2006) 83: 245. doi:10.1007/s00340-006-2170-9
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We report the efficient compacted deep-blue laser at 456 nm generation by intra-cavity frequency doubling of a continuous-wave (cw) laser operation of a diode-pumped Nd:GdVO4 laser on the 4F3/2→4I9/2 transition at 912 nm. The different long LiB3O5 (LBO) crystals, cut for critical type I phase matching at room temperature, are used for second harmonic generation (shg) of the laser. At an incident pump power of 30 W, up to 5.3 W of cw output power at 456 nm is achieved with 15-mm-long LBO (3.8 W with 10 mm-long LBO). The conversion efficiency is 17.7% from pump diode input to second harmonic wave output.