39.4 Gb/s data transmission over 24.4 meters of coaxial cable using duobinary signaling

We demonstrate, for the first time, transmission of 39.4 Gb/s data over a 24.4-meter long 5.2 mm diameter coaxial cable with SMA connectors using electrical duobinary signaling. A custom Indium Phosphide (InP) duobinary-to-binary converter integrated circuit has been designed and is used in conjunction with a clock recovery circuit to achieve a bit error rate better than 3×10−12 with a 215-1 bit sequence.

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