Impact of Differential Group Delay on 100 Gb/sλ IM/DD Passive Optical Networks

Haide Wang, Ji Zhou, Jinyang Yang, Weiping Liu, Changyuan Yu, Zhaohui Li

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

The 100 Gb//λ passive optical networks (PONs) based on the intensity-modulation and direct-detection (IM/DD) optical systems are still potential candidates for the next-generation PON. However, in addition to the limited bandwidth and chromatic dispersion, differential group delay (DGD) is a potentially great challenge for the 100 Gb//λ IM/DD PONs. DGD not only causes inter-symbol interference but also seriously affects timing recovery. In this paper, we evaluate the impact of DGD on the 100 Gb//λ IM/DD PON. The results show that the bit-error ratio is seriously degraded. Although more powerful digital signal processing is used, the penalty on the receiver sensitivity still exists. Moreover, the variance of the timing error is larger with the increase of DGD, which would be a great challenge to implement timing recovery for the 100 Gb//λ IM/OD PONs.

Original languageEnglish
Title of host publication2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350312614
DOIs
Publication statusPublished - Nov 2023
Event2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023 - Wuhan, China
Duration: 4 Nov 20237 Nov 2023

Publication series

Name2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

Conference

Conference2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
Country/TerritoryChina
CityWuhan
Period4/11/237/11/23

Keywords

  • 100G passive optical networks
  • differential group delay
  • intensity-modulation and direct-detection
  • on-off keying
  • timing recovery

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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