Application and technical issues of WDM-PON

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)


This paper reviews recent research activities on the applications and technical issues of WDM-PON. First, we describe two candidate applications of WDM-PON: one is a long-reach WDM-PON based on wavelength routing for metro/access integration, and the other is a short-reach WDM-PON for co-existence with current PON systems. We identify that the realization of colorless optical network units (ONUs) is an important technical issue for both applications, and an effective protection function is another important issue, especially for the long-reach WDM-PON. We introduce several 'colorless-ONU' approaches as well as introduce our recent research results to resolve the issues raised by some colorless-ONU approaches. In the second half of this paper, we describe two application: one is the wide-area optical/wireless hybrid access network based on long-reach WDM-PON with loop-back type colorless ONUs, and the other is the optical and wireless access based on short-reach WDM-PON coexisting with a current PON infrastructure with tunable-type colorless ONUs.

Original languageEnglish
Title of host publicationBroadband Access Communication Technologies IV
Publication statusPublished - 2010 Mar 22
Externally publishedYes
EventBroadband Access Communication Technologies IV - San Francisco, CA, United States
Duration: 2010 Jan 272010 Jan 28

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceBroadband Access Communication Technologies IV
Country/TerritoryUnited States
CitySan Francisco, CA


  • Colorless optical network unit (ONU)
  • Passive optical network (PON)
  • Radio-on-Fiber (RoF)
  • Wavelength division multiplexing (WDM)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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