Optical interconnection in embedded-fiber printer circuit boards

Optical interconnection between vertical cavity surface emitting laser (VCSEL) and PIN on fiber-embedded printed circuit board (PCB) was studied in this paper. The whole project was introduced, and the technics by traditional manufacture machine of PCB was described in detail. Model of direct coupling structure between optical transceiver and fiber was analyzed by geometrical optics, and alignment tolerances were given. Performance parameters were tested. It was shown that the advantages of this method were low insertion loss, small size, big throughput, and compatible with traditional technics. It also could have a great application in fabrication of fiber interconnection backplane.