標題: WDM extended reach passive optical networks using OFDM-QAM
作者: Chow, Chi-Wai
Yeh, Chien-Hung
Wang, Chia-Hsuan
Shih, Fu-Yuan
Pan, Ci-Ling
Chi, Sien
光電工程學系
Department of Photonics
公開日期: 4-Aug-2008
摘要: In order to reduce the cost for delivering future broadband services, network operators are inclined to simplify the network architectures by integrating the metro and access networks into a single system. Hence, extended reach passive optical networks (ER-PONs) have been proposed. ER-PON usually has four new features: high data rate in both upstream and downstream signals (> 1 Gb/s); reach extension to > 100 km; a high split ratio (> 100); and using wavelength division multiplexing (WDM). In this work, we propose and demonstrate a highly spectral efficient ER-PON using 4 Gb/s OFDM-QAM for both upstream and downstream signals, while achieving a high split-ratio of 256. The ER-PON employs optical components optimized for GPON (bandwidth of similar to 1GHz) and reaches 100 km without dispersion compensation. Numerical analysis using 16, 64 and 256-QAM OFDM are also performed to study the back-to-back receiver sensitivities and power penalties at different electrical driving ratios. (C) 2008 Optical Society of America.
URI: http://dx.doi.org/10.1364/OE.16.012096
http://hdl.handle.net/11536/8480
ISSN: 1094-4087
DOI: 10.1364/OE.16.012096
期刊: OPTICS EXPRESS
Volume: 16
Issue: 16
起始頁: 12096
結束頁: 12101
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