Evaluation of transmission performance in cost-effective optical duobinary transmission utilizing modulator's bandwidth or low-pass filter implemented by a single capacitor

  • Yonghoon Kim
  • , Jaehoon Lee
  • , Yonggyoo Kim
  • , Jichai Jeong*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    We have investigated cost-effective and simple duobinary modulations with/without using low pass filters (LPF) for the conventional duobinary modulation. For the proposed schemes, the effects of the electrical bandwidth and the DC extinction ratio of Mach-Zehnder (MZ) modulators have been investigated for transmission performances. The calculated eye-diagrams and BER characteristics of the proposed schemes have similar characteristics at 160 km transmission, compared to the conventional duobinary scheme. To explain the transmission performance of the proposed schemes, the chirp characteristics have been compared. We have obtained a similar SPM tolerance between the proposed schemes and the conventional duobinary modulation scheme.

    Original languageEnglish
    Pages (from-to)312-324
    Number of pages13
    JournalOptical Fiber Technology
    Volume10
    Issue number4
    DOIs
    Publication statusPublished - 2004 Oct

    Bibliographical note

    Funding Information:
    This work was supported in part by the National Research Laboratory Program in South Korea and Korea University Post-Doc. Grant in 2003.

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics
    • Instrumentation
    • Electrical and Electronic Engineering

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