A novel WDM-PON architecture enabling multicasting with color-free ONUs based on WSS and Interleaver

Yi Xiang; Shilin Xiao; Zhixin Liu; Min Zhu; Daozi Ding; Yang Cheng; Jianwen Wei

doi:10.1117/12.851337

19 November 2009 A novel WDM-PON architecture enabling multicasting with color-free ONUs based on WSS and Interleaver

Yi Xiang, Shilin Xiao, Zhixin Liu, Min Zhu, Daozi Ding, Yang Cheng, Jianwen Wei

Proceedings Volume 7633, Network Architectures, Management, and Applications VII; 76330F (2009) https://doi.org/10.1117/12.851337
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

We propose a novel multicast-enable wavelength-division-multiplexed (WDM) passive-optical-network (PON) architecture that uses two sidebands of Optical Carrier Suppressed (OCS)-DPSK signal to carry the unicast and multicast data. The multicast wavelength control is realized through a Wavelength Selective Switch (WSS). At the optical line terminal (OLT), for each WDM channel, a single drive Mach-Zehnder modulator (MZM) is used to generate a subcarrier double-sideband (DSB) DPSK signal. Then, the lower-sideband signals are separated by an interleaver and subsequently modulated to deliver the multicast data, while the remaining upper-sideband DPSK signals carry the downstream unicast data. In the optical network units (ONUs), part of the downstream unicast signal power is re-modulated for upstream transmission, which enables color-free ONUs. This proposed scheme is experimentally demonstrated with a 1.25Gb/s downstream unicast and multicast data.

Citation Download Citation

Yi Xiang, Shilin Xiao, Zhixin Liu, Min Zhu, Daozi Ding, Yang Cheng, and Jianwen Wei "A novel WDM-PON architecture enabling multicasting with color-free ONUs based on WSS and Interleaver", Proc. SPIE 7633, Network Architectures, Management, and Applications VII, 76330F (19 November 2009); https://doi.org/10.1117/12.851337

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