Efficient type I blue second-harmonic generation in periodically segmented KTiOPO4 waveguides
- 12 November 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (20) , 2074-2076
- https://doi.org/10.1063/1.103945
Abstract
We report type I phase‐matched blue second‐harmonic generation from periodically segmented channel ion‐exchanged waveguides in KTiOPO4 with output wavelengths from 0.38 to 0.48 μm and efficiencies exceeding 50%/W cm2. Evidence is presented suggesting that these efficiencies result from ferroelectric domain reversals induced by waveguide fabrication. Waveguide structure, wavelength, and output power characteristics are presented.Keywords
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