Simple colorless WDM-PON with Rayleigh backscattering noise circumvention employing m-QAM OFDM downstream and remodulated OOK upstream signals

C. H. Yeh*, Chi-Wai Chow, H. Y. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

We propose and experimentally demonstrate a new colorless wavelength-division-multiplexed passive optical network (WDM-PON) architecture with the Rayleigh backscattering (RB) interferometric beat noise mitigation by using cross-remodulation architecture. The proposed WDM-PON has a simply configuration by combining two WDM-PONs at two wavelength bands to support twice the number of users. We experiment different m-quadrature amplitude modulation (QAM) (m = 16, 32 and 64) orthogonal frequency division multiplexing (OFDM) downstream signal and the remodulated on-off keying (OOK) upstream signal by using the 2.5 GHz directly modulated laser (DML) and 1.2 GHz reflective semiconductor optical amplifier (RSOA) respectively. Hence, the total data rate achieved for the downstream signals are 10 Gb/s, 12.5 Gb/s, and 15 Gb/s respectively for different m -QAM. For the upstream signal, we over-drive the RSOA and 2.5 Gb/s OOK upstream traffic can be achieved. In addition, the proposed PON can also be upgraded to support more wavelength bands to meet the increase demand of capacity.

Original languageEnglish
Article number6176179
Pages (from-to)2151-2155
Number of pages5
JournalJournal of Lightwave Technology
Volume30
Issue number13
DOIs
StatePublished - 16 May 2012

Keywords

  • Optical OFDM
  • PON architecture
  • Rayleigh backscattering
  • WDM access

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