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Optical Engineering

Simple ring-type passive optical network with two-fiber protection scheme and performance analysis
Author(s): Byung-Tak Lee; Mun Seob Lee; Ho Young Song
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Paper Abstract

A simple passive optical network with ring-type distributed optical networking units (ONUs) is proposed. The ring protection is performed by a clockwise and a counterclockwise circulating fiber. The protection-and-restoration time is measured to be less than 5 s, and depends on the optical switching and the autodiscovery process time. In spite of additional devices for protection, the system reliability is enhanced so that the expected downtime decreases from 41.3 to 28.9 min/yr. The optimum condition to support the maximum number of ONUs is derived and verified by an optical link simulation.

Paper Details

Date Published: 1 June 2007
PDF: 6 pages
Opt. Eng. 46(6) 065002 doi: 10.1117/1.2746929
Published in: Optical Engineering Volume 46, Issue 6
Show Author Affiliations
Byung-Tak Lee, Electronics and Telecommunications Research Institute (South Korea)
Mun Seob Lee, Electronics and Telecommunications Research Institute (South Korea)
Ho Young Song, Electronics and Telecommunications Research Institute (South Korea)


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