Comparison of transmission performance of 40-Gb/s optical duobinary and DCS-RZ signals using 10- and 40-Gb/s LiNbO3 Mach-Zehnder modulators

Yonghoon Kim, Hodeok Jang, Sangil Kim, Seunghyun Oh, Jae Hoon Lee, Kyoungsoo Kim, Hanlim Lee, Jichai Jeong

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We investigated a cost-effective method using 10-Gb/s LiNbO3 Mach-Zehnder Modulators (MZMs) for transmitting 40-Gb/s duobinary nonreturn-to-zero (NRZ) and duobinary carrier-suppressed return-to-zero (DCS-RZ) signals. The transmission performance of the signals was investigated. The optimum bandwidths of low-pass filters in transmitters using 10- and 40-Gb/s LiNbO3 MZMs were also investigated. The calculated transmission performance of the transmitter using 10-Gb/s LiNbO3 MZMs was compared to that using 40-Gb/s LiNbO3 MZMs. The effect of the bias offset in the transmitters was investigated. Compared to duobinary-NRZ and DCS-RZ signals generated by a transmitter using 40-Gb/s LiNbO3 MZMs, those generated by using 10-Gb/s LiNbO3 MZMs can be transmitted with 1-dB power penalty over 480-km transmission.

Original languageEnglish
Pages (from-to)318-324
Number of pages7
JournalJournal of Lightwave Technology
Volume25
Issue number1
DOIs
Publication statusPublished - 2007 Jan 1

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Modulators
Mach number
modulators
transmitters
Transmitters
low pass filters
Low pass filters
penalties
bandwidth
costs
Bandwidth
Costs

Keywords

  • Duobinary
  • Modulation format
  • Optical communication
  • Simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Comparison of transmission performance of 40-Gb/s optical duobinary and DCS-RZ signals using 10- and 40-Gb/s LiNbO3 Mach-Zehnder modulators. / Kim, Yonghoon; Jang, Hodeok; Kim, Sangil; Oh, Seunghyun; Lee, Jae Hoon; Kim, Kyoungsoo; Lee, Hanlim; Jeong, Jichai.

In: Journal of Lightwave Technology, Vol. 25, No. 1, 01.01.2007, p. 318-324.

Research output: Contribution to journalArticle

Kim, Yonghoon ; Jang, Hodeok ; Kim, Sangil ; Oh, Seunghyun ; Lee, Jae Hoon ; Kim, Kyoungsoo ; Lee, Hanlim ; Jeong, Jichai. / Comparison of transmission performance of 40-Gb/s optical duobinary and DCS-RZ signals using 10- and 40-Gb/s LiNbO3 Mach-Zehnder modulators. In: Journal of Lightwave Technology. 2007 ; Vol. 25, No. 1. pp. 318-324.
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