OFDM/WDM PON With Laserless,Colorless 1 Gb/s ONUs Basedon Si-PIC and Slow IC

Citation:

A. Agmon, Nazarathy, M. , Marom, D. M. , Ben-Ezra, S. , Tolmachev, A. , Killey, R. , Bayvel, P. , Meder, L. , Hübner, M. , Meredith, W. , Vickers, G. , Schindler, P. C. , Schmogrow, R. , Hillerkuss, D. , Freude, W. , Koos, C. , and Leuthold, J.. 2014. “Ofdm/Wdm Pon With Laserless,Colorless 1 Gb/S Onus Basedon Si-Pic And Slow Ic”. Journal Of Optical Communications And Networking, 6, Pp. 225-237. https://www.osapublishing.org/jocn/abstract.cfm?uri=jocn-6-3-225.

Abstract:

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, supportingsymmetrical1 Gb/s rates perhome 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 multiplexingOFDM/WDMarchitecture 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.