Blue light generation by frequency doubling CW diode laser radiation in KNbO 3 channel waveguides
- 4 June 1992
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 28 (12) , 1092-1093
- https://doi.org/10.1049/el:19920690
Abstract
Blue light at 430 nm is generated by frequency doubling CW AlGaAs diode lasers in ion-implanted KNbO3 channel waveguides. Stable Cerenkov-type second harmonic generation is demonstrated at room temperature without the need for precise temperature control. With 97 mW of fundamental power in a channel guide of 5.6 mm length a blue light output power of 1.1 mW is achieved. Efficiencies of more than 40%/W cm are obtained by adding up the contributions from several modes of the multimode waveguide.Keywords
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