Optical printed circuit board with two light waveguide layers optically coupled to each other

摘要

An optical PCB includes a substrate layer, a first light waveguide layer and a second light waveguide layer. The first light waveguide layer and the second light waveguide layer are positioned on the substrate layer and are optically coupled with each other. The first light waveguide layer includes a first tapered end facing toward the second light waveguide layer, and the second light waveguide layer includes a second taped end facing toward the first light waveguide layer. The first light waveguide layer and the second light waveguide layer are optically coupled with each other via the first tapered end and the second tapered end.

主权项

1. An optical printed circuit board (PCB), comprising:
a substrate layer defining a receiving groove; a first light waveguide layer on the substrate layer; a second light waveguide layer on the substrate layer, the second light waveguide layer being optically coupled with the first light waveguide layer; and an interconnecting light waveguide layer received in the receiving groove of the substrate layer and positioned between the first light waveguide layer and the second light waveguide layer, the first light waveguide layer optically coupled with the second light waveguide layer via the interconnecting light waveguide layer; wherein the first light waveguide layer comprises a first tapered end facing toward the second light waveguide layer, the second light waveguide layer comprises a second tapered end facing toward the first light waveguide layer, and the first light waveguide layer and the second light waveguide layer are optically coupled with each other via the first tapered end and the second tapered end.