3rd International ICST Conference on Broadband Communications, Networks, and Systems

Research Article

Next-Generation Optical Access Networks

  • @INPROCEEDINGS{10.1109/JLT.2007.907748,
        author={David Gutierrez and Wei-Tao Shaw and Fu-Tai An and Yu-Li Hsueh and Matthew Rogge and Gordon Wong and Leonid G.  Kazovsky and Kyeong Soo Kim },
        title={Next-Generation Optical Access Networks},
        proceedings={3rd International ICST Conference on Broadband Communications, Networks, and Systems},
        keywords={Access networks  passive optical network (PON)  time division multiplexing (TDM)  wavelength division multiplexing (WDM)},
  • David Gutierrez
    Wei-Tao Shaw
    Fu-Tai An
    Yu-Li Hsueh
    Matthew Rogge
    Gordon Wong
    Leonid G. Kazovsky
    Kyeong Soo Kim
    Year: 2006
    Next-Generation Optical Access Networks
    DOI: 10.1109/JLT.2007.907748
David Gutierrez1,*, Wei-Tao Shaw1,*, Fu-Tai An1, Yu-Li Hsueh1, Matthew Rogge1, Gordon Wong1, Leonid G. Kazovsky1,*, Kyeong Soo Kim 2,*
  • 1: Photonics and Networking Research Laboratory, Stanford Univ ersity, Stanford CA 94305, USA
  • 2: Advanced System Technology, STMicroelectronics, San Jose CA 95131, USA
*Contact email: degm@stanford.edu , wtshaw@stanford.edu , kazovsky@stanford.edu , kimks@ieee.org


The main bandwidth bottleneck in today's networks is in the access segment. To address that bottleneck, broadband fiber access technologies such as passive optical networks (PONs) are an indispensable solution. The industry has selected time-division multiplexing (TDM) for current PON deployments. To satisfy future bandwidth demands, however, next-generation PON systems are being investigated to provide even higher performance. In this paper, we first review current TDM-PONs; we designate them as generation C. Next, we review next-generation PON systems, which we categorize into C+1 and C+2 generations. We expect C+1 systems to provide economic near-term bandwidth upgrade by overlaying new services on current TDM-PONs. For the long term, C+2 systems will provide more dramatic system improvement using wavelength division multiplexing technologies. Some C+2 architectures require new infrastructures and/or equipment, whereas others employ a more evolutionary approach. We also review key enabling components and technologies for C+1 and C+2 generations and point out important topics for future research.