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

Wei Feng Zhang; Xiang Jun Xin; Qi Zhang; Zi Xing Zhang; Wei Nai; Yan Shi

doi:10.1016/S1005-8885(09)60498-2

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

Wei Feng Zhang^*, Xiang Jun Xin, Qi Zhang, Zi Xing Zhang, Wei Nai, Yan Shi

^*Corresponding author for this work

Beijing University of Posts and Telecommunications

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

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.

Original language	English
Pages (from-to)	125-128
Number of pages	4
Journal	Journal of China Universities of Posts and Telecommunications
Volume	17
Issue number	4
DOIs	https://doi.org/10.1016/S1005-8885(09)60498-2
Publication status	Published - Aug 2010
Externally published	Yes

Keywords

DQPSK
WDM-PON
centralized light sources
remodulation

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10.1016/S1005-8885(09)60498-2

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title = "Centralized light-wave WDM-PON employing DQPSK downstream and OOK remodulated upstream signals",

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.",

keywords = "DQPSK, WDM-PON, centralized light sources, remodulation",

author = "Zhang, {Wei Feng} and Xin, {Xiang Jun} and Qi Zhang and Zhang, {Zi Xing} and Wei Nai and Yan Shi",

year = "2010",

month = aug,

doi = "10.1016/S1005-8885(09)60498-2",

language = "English",

volume = "17",

pages = "125--128",

journal = "Journal of China Universities of Posts and Telecommunications",

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publisher = "Beijing University of Posts and Telecommunications",

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TY - JOUR

T1 - Centralized light-wave WDM-PON employing DQPSK downstream and OOK remodulated upstream signals

AU - Zhang, Wei Feng

AU - Xin, Xiang Jun

AU - Zhang, Qi

AU - Zhang, Zi Xing

AU - Nai, Wei

AU - Shi, Yan

PY - 2010/8

Y1 - 2010/8

N2 - 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.

AB - 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.

KW - DQPSK

KW - WDM-PON

KW - centralized light sources

KW - remodulation

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DO - 10.1016/S1005-8885(09)60498-2

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VL - 17

SP - 125

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JO - Journal of China Universities of Posts and Telecommunications

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IS - 4

ER -

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

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Keywords

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