Frequency-doubling in femtosecond laser inscribed periodically-poled potassium titanyl phosphate waveguides

Frequency doubling has been achieved in femtosecond-laser-inscribed single-mode waveguides written in two periodically-poled potassium titanyl phosphate crystals. A conversion efficiency of 0.22 %W(1) was obtained for first-order quasi-phase matching at 980 nm and an efficiency of 0.02 %W(-1) for th...

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Bibliographic Details
Published in:Optics express 2007-12, Vol.15 (25), p.17146-17150
Main Authors: Campbell, S, Thomson, R R, Hand, D P, Kar, A K, Reid, D T, Canalias, C, Pasiskevicius, V, Laurell, F
Format: Article
Language:English
Subjects:
generation
glass
inscription
ktiopo4
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Summary:Frequency doubling has been achieved in femtosecond-laser-inscribed single-mode waveguides written in two periodically-poled potassium titanyl phosphate crystals. A conversion efficiency of 0.22 %W(1) was obtained for first-order quasi-phase matching at 980 nm and an efficiency of 0.02 %W(-1) for third-order quasi-phase matching at 800 nm.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.15.017146