Efficient continuous-wave intracavity frequency-doubled Nd:YAG-LBO blue laser at 473 nm under diode pumping directly into the emitting level
✍ Scribed by Y.F. Lü; X.D. Yin; J. Xia; R.G. Wang; D. Wang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 135 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1612-2011
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✦ Synopsis
We report the efficient blue laser at 473 nm generation by intracavity frequency doubling of a continuous wave laser operation of a 885 nm diode direct pumped Nd:YAG laser on the 4 F 3/2 → 4 I 9/2 transition at 946 nm. A LiB 3 O 5 (LBO) crystal, cut for critical type I phase matching at room temperature is used for second harmonic generation of the laser. At the absorbed pump power of 18.7 W, as high as 4.3 W of continuous wave output power at 473 nm is achieved with 15 mm long LBO. The optical-to-optical conversion efficiency with respect to the absorbed power is up to 0.23, and the beam quality M 2 value is 1.2.
Beam profile distribution of 473 nm blue laser