Abstract

Optical waveguides have applications as modulators, splitters, dfb lasers, and so on. These structures are also being developed for wavelength conversion applications such as the direct doubling of laser diodes for optical storage and printing. Most of these waveguide structures have involved either uniform continuous waveguides or continuous guides with some form of small periodic modulation imposed, such as refractive index or waveguide dimension. A new waveguide structure has been demonstrated recently for use with KTP to facilitate the fabrication of structures designed for wavelength conversion using balanced phase matching and quasi phase matching.^1,2 This new waveguide, which is a segmented structure consisting of both guiding and nonguiding sections, has greatly simplified waveguide fabrication for nonlinear optical applications and may be useful with other materials arid for other applications as well.

© 1992 Optical Society of America