Multilevel coupling for phase front engineering. Interuniversitair Micro-Electronica Centrum vzw
An integrated optical structure (1) for phase front engineering of optical beams (2) comprising: - a substrate (100); - a plurality of optical layers (201;202) formed on said substrate (100) and comprising: o an optical phased array (21;22) comprising a plurality of optical waveguides (220); and o a coupling section (20) for each of said optical waveguides (220) configured to control the phase of an optical beam (2) coupling out of said optical waveguide (220); and - a slab waveguide (300) formed between two of said optical layers (201;202) and in optical communication with said coupling ...