The concept revealed is a simple architecture for an optical printed circuit board, which permits manufacturing with the materials normally used in printed circuit board fabrication. This concept is that the very short distances of Z travel within a printed circuit board can be best traveled electrically, allowing the surface devices and general layout to be nearly standard and with inexpensive devices. The internal transmission of optical signals is done only within a plane, making the manufacturing much easier and the reliability as good as other embedded device PCBs. This should enable a much less expensive optical PCB.
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