All-solid-state CW Nd:KGd(WO4)2 self-Raman laser at 561 nm by intracavity sum-frequency mixing of fundamental and first-Stokes wavelengths

We report for the first time an efficient continuous wave (CW) laser emission at 561 nm by sum‐frequency mixing of the fundamental and first‐Stokes fields generated within an Nd:KGd(WO4)2 self‐Raman laser. Intracavity sum‐frequency mixing with LiB3O5 (LBO) nonlinear crystal yielded 570 mW of visible...

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Bibliographic Details
Published in:Laser physics letters 2011-01, Vol.8 (1), p.21-23
Main Authors: Xia, J., Lü, Y.F., Zhang, X.H., Cheng, W.B., Xiong, Z., Lu, J., Xu, L.J., Sun, G.C., Zhao, Z.M., Tan, Y.
Format: Article
Language:English
Subjects:
Beam characteristics: profile, intensity, and power
spatial pattern formation
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Nonlinear optical crystals
Optical materials
Optics
Physics
Raman lasers
solid-state laser
sum-frequency
yellow-green laser
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Summary:We report for the first time an efficient continuous wave (CW) laser emission at 561 nm by sum‐frequency mixing of the fundamental and first‐Stokes fields generated within an Nd:KGd(WO4)2 self‐Raman laser. Intracavity sum‐frequency mixing with LiB3O5 (LBO) nonlinear crystal yielded 570 mW of visible yellow‐green emission; the output power stability over 4 h is better than 4.6%. The laser beam quality M2 factors are 1.54 and 2.13 in both horizontal and vertical dimensions respectively. (© 2011 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA) (© 2010 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)
ISSN:1612-2011
1612-202X
DOI:10.1002/lapl.201010086