2.8 Gbit/s optical interconnection circuit using D8B1C/D8B1M coding scheme

We develop a 2.8 Gbit/s optical interconnection circuit using the D8B1C (Differential 8 Binary 1 Complement insertion)/D8B1M (Differential 8 Binary with 1 Mark insertion) coding scheme for multiplexed channel framing and synchronization and suppressing Direct Current level variation. The circuit multiplexes 16 parallel 156 Mbit/s input signals, and outputs a 2.8 Gbit/s serial signal. The coding scheme, named D8B1C/D8B1M, realizes large capacity interconnections with simple analog circuits, and offers high flexibility for extension to higher capacity interconnections. >