Experimental demonstrations of matching filter-free digital filter multiplexed ssb ofdm imdd transmission systems

Zhuqiang Zhong, Wei Jin (Corresponding author), Yixian Dong, Abdulai Sankoh, Jiaxiang He, Yanhua Hong, Roger Giddings, Iestyn Pierce, Maurice Oasullivan, Jeffrey Lee, Giordano Mariani, Tim Durrant, Jianming Tang

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Matching filter (MF)-free digital filter multiplexed (DFM) single sideband (SSB) OFDM intensity modulation and direct detection (IMDD) dual-channel transmissions of 51.25Gbit/s over 25km SSMFs are experimentally demonstrated. It is shown that both transmission system impairments and digital filter characteristic variations can only lead to <1dB transmission performance degradations. Compared with the MF-free DFM-based double sideband (DSB) OFDM technique, the SSB technique has a similar receiver DSP complexity and provides almost twice the maximum signal transmission capacity. When compared with a conventional DFM technique incorporating a dedicated shaping and matching filter pair for each channel, the present SSB technique achieves a 10-fold reduction of receiver DSP complexity and 7.82Gbit/s of additional signal transmission throughput. We demonstrate these throughput and complexity advantages by modelling and measurement.

Original languageEnglish
Article number9373899
Number of pages13
JournalIEEE Photonics Journal
Volume13
Issue number2
DOIs
Publication statusPublished - Apr 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2009-2012 IEEE.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • Digital orthogonal filtering
  • intensity modulation and direct detection (IMDD)
  • single sideband (SSB)

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