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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 11 — Nov. 1, 2011
  • pp: 839–849

Resilient FTTH Architecture With Ladder and Grid Network Structures

Makoto Tsubokawa, Nazuki Honda, and Yuji Azuma  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 3, Issue 11, pp. 839-849 (2011)
http://dx.doi.org/10.1364/JOCN.3.000839


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Abstract

This paper proposes a resilient access network architecture with a cable-route protection function based on hybrid wavelength division multiplexing and time division multiplexing passive optical network (WDM/TDM-PON) systems. The reuse of existing optical cable networks allows our ladder and grid networks to introduce duplicate routes for the shared portions of PONs by using a few optical fibers with simple structures. It automatically builds alternative optical paths in response to the wavelengths of optical line terminal and optical network units (ONUs) at both ends of the network. Our simulation achieved network capacities of 1.25 Gb/s × 500 ONUs and 10 Gb/s × 64 ONUs by applying 48 and 16 WDMs, respectively, to the networks. We think that these results show sufficient scalability; in particular, the ladder network composed of simple WDM components is a promising architecture for resilient access networks.

© 2011 OSA

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(060.4261) Fiber optics and optical communications : Networks, protection and restoration

ToC Category:
Research Papers

History
Original Manuscript: March 31, 2011
Revised Manuscript: July 1, 2011
Manuscript Accepted: September 28, 2011
Published: October 23, 2011

Citation
Makoto Tsubokawa, Nazuki Honda, and Yuji Azuma, "Resilient FTTH Architecture With Ladder and Grid Network Structures," J. Opt. Commun. Netw. 3, 839-849 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-11-839

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