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Optical Engineering

Cost-effective centralized automatic protection switching scheme for reliable wavelength division multiplexing passive optical network
Author(s): Min Zhu; Wen-De Zhong; Shilin Xiao
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Paper Abstract

A simple, cost-effective, centrally controlled, self-protection, colorless wavelength division multiplexing passive optical network is proposed. By using an optical switch at the optical line terminal and an N×N arrayed waveguide grating at a remote node, it can provide 1∶1 protection for downstream traffic and 1+1 protection for upstream data, respectively. The scheme feasibility is verified with 1.25  Gb/s for upstream and 2.5  Gb/s for downstream data rates based on gain-saturated reflective semiconductor optical amplifier, in both normal working and protection modes. The network performance in terms of complexity and availability is also evaluated.

Paper Details

Date Published: 18 May 2012
PDF: 8 pages
Opt. Eng. 51(5) 055005 doi: 10.1117/1.OE.51.5.055005
Published in: Optical Engineering Volume 51, Issue 5
Show Author Affiliations
Min Zhu, Nanyang Technological Univ. (Singapore)
Wen-De Zhong, Nanyang Technological Univ. (Singapore)
Shilin Xiao, Shanghai Jiao Tong Univ. (China)

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