Cost-efficient High-Speed Modulation for Next-Generation PONs

Konferenz: Photonische Netze - 16. ITG-Fachtagung
07.05.2015 - 08.05.2015 in Leipzig, Deutschland

Tagungsband: ITG-Fb. 257: Photonische Netze

Seiten: 4Sprache: EnglischTyp: PDF

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Wei, J. L.; Grobe, K.; Griesser, H. (ADVA Optical Networking SE, Fraunhoferstr. 9a, 82152 Martinsried, Munich, Germany)

First numerical investigations are undertaken to analyze and compare the performance and cost of 3-level Duobinary and PAM-4 formats as candidates for high-speed next-generation PONs that support downstream 28 Gb/s and 40 Gb/s per wavelength signal transmission over standard SMF in the C-band. Transceivers with bandwidths of 10 GHz, 20 GHz, 28 GHz and 40 GHz have been analyzed, showing the feasibility of PON-distance transmission with low-cost band-limited components. Duobinary achieves better sensitivities for smaller distances, whereas PAM-4 shows better results for larger distances. In addition, Duobinary and PAM-4 have similar transceiver cost.