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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 1, Iss. 4 — Sep. 1, 2009
  • pp: C17–C24

Applications and Technical Issues of Wavelength-Division Multiplexing Passive Optical Networks With Colorless Optical Network Units [Invited]

Katsumi Iwatsuki and Jun-ichi Kani  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 1, Issue 4, pp. C17-C24 (2009)
http://dx.doi.org/10.1364/JOCN.1.000C17


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Abstract

We review our recent research activities on the applications and technical issues of WDM passive optical networks (WDM-PONs). First, we describe our focus on 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 coexistence 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 compare several colorless-ONU approaches as well as introduce our recent research results to resolve the issues raised by some colorless-ONU approaches. We also describe two demonstrations: one is the long-reach WDM-PON with a wavelength-shifted protection scheme as well as loop-back-type colorless ONUs, and the other is a WDM-PON coexisting with a current PON system with tunable-type colorless ONUs.

© 2009 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Focus: Next-Generation WDM-PON-Based Optical Access Networks

History
Original Manuscript: March 30, 2009
Revised Manuscript: May 28, 2009
Manuscript Accepted: June 3, 2009
Published: August 19, 2009

Citation
Katsumi Iwatsuki and Jun-ichi Kani, "Applications and Technical Issues of Wavelength-Division Multiplexing Passive Optical Networks With Colorless Optical Network Units [Invited]," J. Opt. Commun. Netw. 1, C17-C24 (2009)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-1-4-C17

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