作者: Vincent E. Houtsma , Dora T. Van Veen
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摘要: We investigated modulation schemes for realizing flexible line-rate PON. The flexibility can be used to optimize PON resource usage. considered cases based on experimental results taken with single carrier as well multicarrier schemes. provide most optimal granularity which somewhat traded off their inherent reduced receiver sensitivity. Total throughput of a DMT-PON using just 10G APD/TIA outperforms PONs dual-rate or triple-rate detected 25G APD/TIA 33 GHz EDFA/PIN normalized 25 Gb/s Of the we investigated, dual rate NRZ/50 Gb/s EDB (or equalized NRZ) case also performs respect obtainable overall throughput. This is due relatively small penalty between NRZ and 50 Gb/s when compared 25 Gb/s NRZ PAM-4, effectively means smaller NRZ/EDB. To further illustrate advantages introducing in systems calculated NRZ/EDB N1, N2, E1, E2 class power budgets assuming N1 rated transceivers. show that few percent reduction N2-class supported N1-class And about 20% E1-class