A method to produce periodically domain-inverted channel waveguides in LiNbO3 is reported. With this type of waveguide, using quasi-phase matching (QPM), arbitrary wavelengths can be frequency doubled by choosing the appropriate period. It is concluded that, with improved fabrication methods, it will be possible to generate milliwatts of blue light with a diode laser as pump, which is of considerable interest
Published in:
Lightwave Technology, Journal of
(Volume:7
,
Issue:
10
)
Date of Publication: Oct 1989