Patent ID: 8885994

Claim:
An apparatus, consisting of: first and third layers formed above a substrate and adjacent each other, the first and third layers being formed of a first material having a first index of refraction; a second layer formed between the first and third layers, the second layer being formed of a second material having a second index of refraction that is larger than the first index of refraction; and a plurality of organo-functional siloxane based resin or polymer waveguides formed in the second layer and in the plane defined by the adjacent first and third layers, each organo-functional siloxane based resin or polymer waveguide having an input on one edge of the second layer and an output on one edge of the second layer so that the input and output are on different line-of-sight paths, the plurality of organo-functional siloxane based resin or polymer waveguides being formed such that intersections of the plurality of organo-functional siloxane based resin or polymer waveguides occur at approximately right angles and each of the plurality of organo-functional siloxane based resin or polymer waveguides includes a substantially 90° turn between the input and the output signals.