A photonic guiding device and methods of making and using are disclosed. The photonic guiding device comprises a large core hollow waveguide (150) configured to interconnect electronic circuitry on a circuit board (240). A reflective coating (108) covers an interior of the hollow waveguide to provide a high reflectivity to enable light to be reflected from a surface of the reflective coating. A collimator (220) is configured to collimate multi-mode coherent light directed into the hollow waveguide.
