277.6-Gb/s LDPC-coded CO-OFDM transmission system with low PAPR based on subcarrier pre-filtering technology

Bo Liu, Xiangjun Xin, Lijia Zhang*, Jianjun Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

This paper proposes a novel subcarrier pre-filtering method to reduce the peak-to-average power ratio (PAPR) in the coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. It can mitigate the fiber nonlinearity without damnifying the signal waveform or inducing any redundant information. The experiment successfully demonstrates a 277.6-Gb/s low-density-parity-check (LDPC) coded CO-OFDM system over 200-km fiber via a subcarrier pre-filtering technology. More than 4-dB improvement in PAPR is achieved compared with that of the conventional CO-OFDM, and the nonlinear threshold can be improved by 2.1 dB at the bit error rate (BER) of 5×10 -2.

Original languageEnglish
Pages (from-to)5397-5400
Number of pages4
JournalOptics Communications
Volume285
Issue number24
DOIs
Publication statusPublished - 1 Nov 2012
Externally publishedYes

Keywords

  • Coherent optical orthogonal frequency division multiplexing
  • Peak-to-average-power ratio (PAPR)
  • Pre-filtering

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