Signal remodulation of OFDM-QAM for long reach carrier distributed passive optical networks

Chi-Wai Chow, C. H. Yeh, C. H. Wang, F. Y. Shih, S. Chi

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

The passive optical network (PON) using orthogonal frequency-division multiplexing (OFDM) is a subject of many research works recently. The OFDM signal is especially good for long reach (LR)-PON due to its high tolerance to chromatic dispersion and high spectral ef?ciency. We study, for the ?rst time, the possibility of using OFDM for signal remodulation in LR-PONs. Three different colorless optical networking unit (ONU) architectures, electroabsorption modulator-based, re?ective semiconductor optical ampli?er-based, and injection-locked Fabry-Pérot laser diode-based ONUs, are tested and compared. Error-free operations are achieved in 100-km ?ber transmission without dispersion compensation.

Original languageEnglish
Pages (from-to)715-717
Number of pages3
JournalIEEE Photonics Technology Letters
Volume21
Issue number11
DOIs
StatePublished - 1 Jun 2009

Keywords

  • Orthogonal frequency-division multiplexing (OFDM)
  • Passive optical networks (PONs)
  • Signal remodulation

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