中国邮电高校学报(英文) ›› 2013, Vol. 20 ›› Issue (3): 114-120.doi: 10.1016/S1005-8885(13)60059-X

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Simple and spectrally-efficient design of high capacity hybrid WDM/TDM-PON with improved receiver sensitivity

Ahmed Muddassir Khan,张杰,赵永利,Yousaf KHAN,韩佳巍,龙旺   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2012-09-20 修回日期:2013-03-15 出版日期:2013-06-30 发布日期:2013-06-26
  • 通讯作者: Ahmed Muddassir Khan E-mail:mail2muddassir@gmail.com
  • 基金资助:

    This work was supported by the National Basic Research Program of China (2010CB328204), the National Natural Science Foundation of China (60932004), the Hi-Tech Research and Development Program of China (2012AA011301), the RFDP Project (20090005110013), the 111 Project (B07005) of China, and the Fundamental Research Funds for the Central Universities (2011RC0406).

Simple and spectrally-efficient design of high capacity hybrid WDM/TDM-PON with improved receiver sensitivity

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2012-09-20 Revised:2013-03-15 Online:2013-06-30 Published:2013-06-26
  • Contact: Ahmed MuddassirKHAN E-mail:mail2muddassir@gmail.com
  • Supported by:

    This work was supported by the National Basic Research Program of China (2010CB328204), the National Natural Science Foundation of China (60932004), the Hi-Tech Research and Development Program of China (2012AA011301), the RFDP Project (20090005110013), the 111 Project (B07005) of China, and the Fundamental Research Funds for the Central Universities (2011RC0406).

摘要:

A simple design of hybrid wavelength division multiplexed/ time division multiplexed passive optical network (WDM/ TDM-PON) is demonstrated for the high capacity next generation access (NGA) network, having advantages of both WDM and TDM based PON techniques. A 10 Gbit/s differential quadrature phase shift keying (DQPSK) data signal is used at optical line terminal (OLT) for downstream, whereas a 2.5 Gbit/s inverse return-to-zero (IRZ) data signal with high extinction ratio is used for upstream signal by intensity re-modulation of downstream signal, no additional laser is used at optical network unit (ONU). Simulation results verify that aggregated 100 Gbit/s downstream transmissions of 10 DQPSK channels and aggregated 25 Gbit/s upstream transmission of 10 IRZ channels, using spectrally-efficient 50 GHz channel spacing, can be successfully achieved over a distance of 20 km with less than 1 dB transmission power penalties and improved receiver sensitivity.

关键词:

centralized light source, hybrid WDM/TDM-PON, DQPSK, IRZ, receiver sensitivity

Abstract:

A simple design of hybrid wavelength division multiplexed/ time division multiplexed passive optical network (WDM/ TDM-PON) is demonstrated for the high capacity next generation access (NGA) network, having advantages of both WDM and TDM based PON techniques. A 10 Gbit/s differential quadrature phase shift keying (DQPSK) data signal is used at optical line terminal (OLT) for downstream, whereas a 2.5 Gbit/s inverse return-to-zero (IRZ) data signal with high extinction ratio is used for upstream signal by intensity re-modulation of downstream signal, no additional laser is used at optical network unit (ONU). Simulation results verify that aggregated 100 Gbit/s downstream transmissions of 10 DQPSK channels and aggregated 25 Gbit/s upstream transmission of 10 IRZ channels, using spectrally-efficient 50 GHz channel spacing, can be successfully achieved over a distance of 20 km with less than 1 dB transmission power penalties and improved receiver sensitivity.

Key words:

centralized light source, hybrid WDM/TDM-PON, DQPSK, IRZ, receiver sensitivity