Abstract

The first demonstrations of frequency doubling in periodically domain-inverted LiNbO₃ waveguides have recently been reported /1,2/. We discuss fabrication methods, the mechanisms involved in domain inversion, and suggest possible improvements in the fabrication process. The technique allows the possibility of generating blue light, by frequency doubling of semiconductor lasers, in a more efficient manner, i.e. guided to guided interaction.

© 1989 Optical Society of America