Abstract

The proton-exchange (PE) technique¹ has been of considerable interest recently for the fabrication of integrated optics devices in lithium niobate and lithium tantalate. During the past ten years, a lot of attempts have been made to characterize the PE process in LiNbO₃. However, in the known reports, severa1 fundamental issues, have not been addressed, the published structural investigations of PE LiNbO₃ waveguides being uncompleted and restricted to particular fabrication process.

© 1996 Optical Society of America