DIRECT PRINTING OF GRATINGS ON SOL-GEL LAYERS

The sol-gel process is an interesting alternative for making glass int egrated-optics components. Reasonable performance can be reached with low-cost fabrication. We show a one-step method for imprinting grating s on a thin layer made through the sol-gel process, thus enlarging the field of application in integrated optics to filters, out-of-plane co nnections, etc. The efficiency of the grating is studied through diffr action measures and computations. (C) 1998 Society of Photo-Optical In strumentation Engineers.