A Diode-Pumped High Power Nd: YAG Laser and its Frequency Conversion

Michio OKA; Yushi KANEDA; Hisashi MASUDA; Shigeo KUBOTA

doi:10.2184/lsj.20.4_230

Michio OKA, Yushi KANEDA, Hisashi MASUDA, Shigeo KUBOTA

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Keywords: LD pumped Nd: YAG laser, SHG (Second harmonic generation), KTP (Potassim tytanyl phosphate), BBO (beta barium borate), Thermal aberration

JOURNAL FREE ACCESS

1992 Volume 20 Issue 4 Pages 230-235

DOI https://doi.org/10.2184/lsj.20.4_230

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Abstract

Scaling of a laser-diode pumped Nd: YAG laser is demonstrated by means of fiber-bundle end-pumping. Using nineteen fibers with thirty-eight 1-W laser diodes, we obtained a 6.7W TEM_o_o mode output at 1.06 μm. Intracavity frequency doubling from an LD-pumped Nd: YAG laser us-ing KTiOPO₄ facilitates the efficient generation of continuous wave 532nm green output as high as 1W. By using the green output, another doubling to 266nm was acheived by means of an ex-ternal resonant β-BaB₂O₄ doubler.

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