OFDM/WDM PON with laserless, colorless 1 Gb/s ONUs based on Si-PIC and slow IC

A. Agmon, M. Nazarathy, D. M. Marom, S. Ben-Ezra, A. Tolmachev, R. Killey, P. Bayvel, L. Meder, M. Hubner, W. Meredith, G. Vickers, P. C. Schindler, R. Schmogrow, D. Hillerkuss, W. Freude, C. Koos, J. Leuthold

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


We introduce a next-generation long-reach access optical network (35 dB loss budget +2 dB margin) delivering up to 40G/40G per passive 1:256 optical distribution network, supporting symmetrical 1 Gb/s rates per home user or up to 40 Gb/s for business users (e.g., enterprises, antenna sites). The proposed system is based on a novel spectrally efficient orthogonal frequency division multiplexing/wavelength division multiplexing OFDM/WDM architecture symmetrically using 16-QAM OFDM polarization diversity in both the downstream and upstream in order to serve low-cost energy-efficient symmetric 1 Gb/s optical network units (ONUs), which are self-coherent, laserless, colorless, and tunable-filter-free. Each ONU comprises a standard semiconductor optical amplifier (SOA), a silicon-based photonic integrated circuit (PIC), and mixed-signal electronic integrated circuits (ICs) performing the signal processing at a relatively slow rate as compared with the overall passive optical network (PON) throughput: digital to analog converters (DACs) and analog to digital converters (ADCs) at 417 MS/s for the home user ONUs.

Original languageAmerican English
Article number6782758
Pages (from-to)225-237
Number of pages13
JournalJournal of Optical Communications and Networking
Issue number3
StatePublished - Mar 2014


  • Access network
  • DFT-spread OFDM
  • Optical communication
  • Orthogonal frequency division multiplexing (OFDM)
  • Passive optical network (PON)


Dive into the research topics of 'OFDM/WDM PON with laserless, colorless 1 Gb/s ONUs based on Si-PIC and slow IC'. Together they form a unique fingerprint.

Cite this