Research Article
Effects of Modulation Techniques (Manchester Code, NRZ or RZ) on the Operation of Hybrid WDM/TDM Passive Optical Networks
Figure 4
Eye openings for a hybrid network system with 128 customers using the return-to-zero format at (a) 19 km, (b) 22 km (c) 25 km, and (d) 28 km distance, respectively.
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