Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs

Giuseppe Talli; Chi Wai Chow; Eimear K. MacHale; Paul D. Townsend

doi:10.1364/JON.6.000765

Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs

Giuseppe Talli
, Chi Wai Chow
, Eimear K. MacHale
, Paul D. Townsend

University College Cork

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

Abstract

An architecture employing a centralized light source and reflective modulator at the customer is proposed and demonstrated for a long-reach, hybrid dense wavelength division multiplexed (DWDM)-time-division multiplexed (TDM) passive optical network (PON). Impairments to the upstream channel caused by Rayleigh backscattering in the network are mitigated using a dual-feeder-fiber approach in conjunction with a novel detuned filtering and spectral-broadening scheme. The experimental results show that the network, with a total reach of 116 km and an upstream bit rate of 10 Gbits/s, can support up to 256 customers on each TDM PON. The potential performance improvements obtainable from an optimized architecture are also discussed.

Original language	English
Pages (from-to)	765-776
Number of pages	12
Journal	Journal of Optical Networking
Volume	6
Issue number	6
DOIs	https://doi.org/10.1364/JON.6.000765
Publication status	Published - 1 Jun 2007

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abstract = "An architecture employing a centralized light source and reflective modulator at the customer is proposed and demonstrated for a long-reach, hybrid dense wavelength division multiplexed (DWDM)-time-division multiplexed (TDM) passive optical network (PON). Impairments to the upstream channel caused by Rayleigh backscattering in the network are mitigated using a dual-feeder-fiber approach in conjunction with a novel detuned filtering and spectral-broadening scheme. The experimental results show that the network, with a total reach of 116 km and an upstream bit rate of 10 Gbits/s, can support up to 256 customers on each TDM PON. The potential performance improvements obtainable from an optimized architecture are also discussed.",

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AB - An architecture employing a centralized light source and reflective modulator at the customer is proposed and demonstrated for a long-reach, hybrid dense wavelength division multiplexed (DWDM)-time-division multiplexed (TDM) passive optical network (PON). Impairments to the upstream channel caused by Rayleigh backscattering in the network are mitigated using a dual-feeder-fiber approach in conjunction with a novel detuned filtering and spectral-broadening scheme. The experimental results show that the network, with a total reach of 116 km and an upstream bit rate of 10 Gbits/s, can support up to 256 customers on each TDM PON. The potential performance improvements obtainable from an optimized architecture are also discussed.

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Rayleigh noise mitigation in long-reach hybrid DWDM-TDM PONs

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