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

Research output: Contribution to journalArticle

8 Citations (Scopus)


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
Issue number4
Publication statusPublished - 2004 Oct


ASJC Scopus subject areas

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

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