The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Laser Original
Fabrication of First-Order Periodically Poled MgO: LiNbO3 Bulks for Ultraviolet Light Generation
Akihiro MORIKAWATomoya SUGITAKiminori MIZUUCHIKazuhisa YAMAMOTO
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2004 Volume 32 Issue 3 Pages 191-196

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Abstract
We propose a novel method for controlling the shape of a short period domain-inverted structure utilizing a multi-pulse poling method. Using this technique, periodically domain-inverted structures with periods of 1.4-2.4 μm were fabricated for over 10 mm interaction length in 2 mm thick Z-cut MgO: LiNbO3 crystal. We have demonstrated highly efficient ultraviolet light generation (340-390 nm) using bulk QPM-SHG devices with these structures. Continuous wave 72 mW at wavelength of 372 nm was generated with conversion efficiency of 17 %.
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© 2004 by The Laser Society of Japan
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