Abstract

KNbO₃ crystals have numerous uses in electro-optical, nonlinear optical, and photorefractive device applications. However, their widespread availability is somewhat limited due to their cost and growth difficulties. For applications requiring waveguide geometries, further problems exist, as KNbO₃ is not particularly suited to general fabrication techniques such as diffusion or ion exchange. Ion beam implantation has produced optical waveguides,¹ and liquid phase epitaxy techniques² prove successful, but so far, the technique of Pulsed Laser Deposition (PLD) has not been applied to thin film KNbO₃ growth. We report here the results of waveguide growth using this technique.³

© 1994 IEEE