A scalable and reliable architecture for both a wavelength division multiplexing passive optical network and a hybrid wavelength and time division multiplexing passive optical network with self-healing capability is presented and evaluated. Our protection scheme is compatible with a cascaded arrayed waveguide grating that can accommodate an ultra-large number of end users. A simple interconnection pattern between two adjacent optical network units (ONUs) is applied in order to provide protection for distributed fibers between a remote node and the ONUs. Therefore, the investment cost on a per-user basis can be significantly reduced. Meanwhile, the performance evaluation shows that our approach can achieve high connection availability while maintaining the support of long reach and high splitting ratio.
© 2011 OSA
Original Manuscript: April 20, 2011
Revised Manuscript: July 13, 2011
Manuscript Accepted: July 13, 2011
Published: August 16, 2011
Jiajia Chen, Lena Wosinska, Mohsan Niaz Chughtai, and Marco Forzati, "Scalable Passive Optical Network Architecture for Reliable Service Delivery," J. Opt. Commun. Netw. 3, 667-673 (2011)