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Optical Engineering

Centrally controlled self-healing wavelength division multiplexing passive optical network based on optical carrier suppression technique
Author(s): Min Zhu; Jiao Zhang; Xiaohan Sun
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Paper Abstract

We proposed and demonstrated a centrally controlled and self-healing wavelength division multiplexing passive optical network with colorless optical network units (ONUs) based on optical carrier suppression technique. By switching the affected data in the OCS signal sideband to an alternate protection path, only one optical switch is provisioned at the optical line terminal, which is controlled by a logic control circuit upon monitoring of power outage on the working path. The proposed scheme can reliably protect against both distribution and feeder fiber failures. Moreover, gain-saturated reflective semiconductor optical amplifiers are used as colorless transmitters in ONUs. The protection scheme feasibility and system performances are experimentally verified with 10  Gb/s downstream and 1.25  Gb/s upstream data in both working and protection modes. The protection switching time was measured to be around 1 ms.

Paper Details

Date Published: 9 December 2015
PDF: 6 pages
Opt. Eng. 54(12) 126105 doi: 10.1117/1.OE.54.12.126105
Published in: Optical Engineering Volume 54, Issue 12
Show Author Affiliations
Min Zhu, Southeast Univ. (China)
Jiao Zhang, Southeast Univ. (China)
Xiaohan Sun, Southeast Univ. (China)

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