中国邮电高校学报(英文)

中国邮电高校学报(英文) ›› 2010, Vol. 17 ›› Issue (4): 125-128.doi: 10.1016/S1005-8885(09)60498-2

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Centralized light-wave WDM-PON employing DQPSK downstream and OOK remodulated upstream signals

张为峰 忻向军 张琦 张子兴 佴炜 SHI Yan   

  1. 1. 北京邮电大学电子工程学院
    2. 北京邮电大学光通信与光波技术教育部重点实验室
    3. 北京邮电大学信息光电子学与光通信研究院
    4.
  • 收稿日期:2009-08-17 修回日期:2010-01-21 出版日期:2010-08-30 发布日期:2010-08-31
  • 通讯作者: 张为峰 E-mail:wfzhang66@gmail.com
  • 基金资助:

    This work was supported by National Basic Research Program of China (2010CB328300), the National Natural Science Foundation of China (60677004, 60977046, 60702049), the Hi-Tech Research and Development Program of China (2009AA01Z220), the Teaching and Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry), and the Program for New Century Excellent Talents in University of China (NECT-07-0111).

Centralized light-wave WDM-PON employing DQPSK downstream and OOK remodulated upstream signals

  1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2009-08-17 Revised:2010-01-21 Online:2010-08-30 Published:2010-08-31
  • Contact: Zhang Wei-Feng E-mail:wfzhang66@gmail.com
  • Supported by:

    This work was supported by National Basic Research Program of China (2010CB328300), the National Natural Science Foundation of China (60677004, 60977046, 60702049), the Hi-Tech Research and Development Program of China (2009AA01Z220), the Teaching and Scientific Research Foundation for the Returned Overseas Chinese Scholars (State Education Ministry), and the Program for New Century Excellent Talents in University of China (NECT-07-0111).

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370

被引次数

28

摘要：

A novel architecture for wavelength-division-multiplexing passive optical network (WDM-PON) with centralized light-wave is proposed and demonstrated. At the optical line terminal (OLT) session of this architecture, optical differential quadrature phase shift keying (DQPSK) modulated signal with constant-intensity at 10 Gbit/s is utilized for downstream transmission. At the optical network unit (ONU), part of the downstream optical power is remodulated with on-off keying (OOK) intensity modulation at 10 Gbit/s for upstream without additional laser. Simulation results show that the power penalties of the downstream for 20 km single-mode fiber (SMF) transmission and multi-channels are negligible. While for the upstream, the power penalties are obvious. The simulation results and analysis also reflect that by reducing the launch power of DQPSK transmitters, power penalties can be reduced, although the transmission distance is limited.

关键词:

WDM-PON, DQPSK, remodulation, centralized light sources

Abstract:

A novel architecture for wavelength-division-multiplexing passive optical network (WDM-PON) with centralized light-wave is proposed and demonstrated. At the optical line terminal (OLT) session of this architecture, optical differential quadrature phase shift keying (DQPSK) modulated signal with constant-intensity at 10 Gbit/s is utilized for downstream transmission. At the optical network unit (ONU), part of the downstream optical power is remodulated with on-off keying (OOK) intensity modulation at 10 Gbit/s for upstream without additional laser. Simulation results show that the power penalties of the downstream for 20 km single-mode fiber (SMF) transmission and multi-channels are negligible. While for the upstream, the power penalties are obvious. The simulation results and analysis also reflect that by reducing the launch power of DQPSK transmitters, power penalties can be reduced, although the transmission distance is limited.

Key words:

WDM-PON, DQPSK, remodulation, centralized light sources

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