, Volume 83, Issue 2, pp 245-247
Date: 25 Mar 2006

5.3 W deep-blue light generation by intra-cavity frequency doubling of Nd:GdVO4

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Abstract

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 4 F 3/24 I 9/2 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.

PACS

42.70.Hj; 42.55.Xi; 42.65.Ky