Diode-pumped Nd:YAG/BiB3O6 deep-blue laser at 449.5 nm

作者:Lue Y F; Zhang X H; Chen R; Xia J; Chen J F; Liu Z T
来源:Laser Physics Letters, 2010, 7(5): 347-350.
DOI:10.1002/lapl.200910161

摘要

We report a diode-pumped Nd:YAG laser emitting at 899 nm based on the F-4(3/2) - I-4(9/2) transition. A power of 1.04 W at 899 urn has been achieved in continuous-wave operation with a fiber-coupled laser diode emitting 19.2 W at 809 nm. Furthermore, intracavity second-harmonic generation in continuous-wave mode has also been demonstrated with a power of 284 mW at 449.5 nm by using a BiB3O6 (BiBO) nonlinear crystal. The fluctuation of the blue output power was better than 2.8%. The beam quality M-2 value is 1.3
[GRAPHICS]
Far-field beam spatial profile of 449.