Comparison of cost- and energy-efficient signal modulations for next generation passive optical networks

J.L. Wei, K. Grobe, C. Costa, E. Giacoumidis, H. Griesser

Research output: Contribution to journalArticlepeer-review


Extensive numerical investigations are undertaken to analyze and compare, for the first time, the performance, techno-economy, and power consumption of three-level electrical Duobinary, optical Duobinary, and PAM-4 modulation formats as candidates for high-speed next-generation PONs supporting downstream 40 Gb/s per wavelength signal transmission over standard SMFs in C-band. Optimization of transceiver bandwidths are undertaken to show the feasibility of utilizing low-cost and band-limited components to support next-generation PON transmissions. The effect of electro-absorption modulator chirp is examined for electrical Duobinary and PAM-4. Electrical Duobinary and optical Duobinary are powerefficient schemes for smaller transmission distances of 10 km SMFs and optical Duobinary offers the best receiver sensitivity albeit with a relatively high transceiver cost. PAM-4 shows the best power budget and costefficiency for larger distances of around 20 km, although it consumes more power. Electrical Duobinary shows the best trade-off between performance, cost and power dissipation.

Original languageEnglish
Pages (from-to)28271-28281
Number of pages11
JournalOptics Express
Issue number22
Early online date20 Oct 2015
Publication statusPublished - 2 Nov 2015

Bibliographical note

Funding: People Programme (Marie Curie Actions) of the EU FP7 (FP7/2007-2013) under REA grant agreement n° 623515 via CEEOALAN project.


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