Single-Fiber Bidirectional Optical Data Links with Monolithic Transceiver Chips
Figure 7
Optical eye diagrams (from [28]) for error-free half-duplex word length non-return-to-zero (NRZ) pseudorandom bit sequence (PRBS) data transmission at 7 Gbit/s (bottom left and center), as well as 6 Gbit/s error-free full-duplex operation (bottom right), all over 500 m graded-index (GI) MMF, as indicated in the schematic setup (top).
