| 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.
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