Integrated optical waveguides for electrooptical PCB

In this paper a novel method for design, development and fabrication of low attenuation waveguides is describe in details. Different sol-gel materials and coating methods are presented. The most critical processing step by manufacturing of integrated interconnects is a coating of a lower cladding on structured copper surfaces. Therefore a suitable material and coating method was founded, which enable realizing of cladding layer with required parameters. For evaluation of fabricated waveguides the attenuation measurement was used.