Patent ID: 7590326

Claim:
A process for manufacturing an integrated optical device comprising the steps of: depositing on a support substrate a multilayer comprising first and second cladding layer in order to hold in a multilayer first region a core layer of a waveguide of the optical device, said core being provided with an electromagnetic radiation inlet/outlet port; forming a regulation layer at least in said multilayer first region having associated a first etching speed which is distinguished from respective etching speeds of said first and second cladding layers; etching a multilayer second region adjacent said first region, thus obtaining a cavity having a first wall which inclined relative to the substrate such as to at least partially extend in said first region and turning out to be near said inlet/outlet port, said etching resulting in a removal of portions of the regulation layer and the cladding layers at different speeds, in order to cause the formation of said first inclined wall; and positioning said regulation layer between said core and said substrate.