Pattern dependency comparison of four different 40-Gb/s optical duobinary transmitters using low-bandwidth modulators

Hanlim Lee, Hoon Kim, Seongtaek Hwang, Yunje Oh, Jae Hoon Lee, Jichai Jeong

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We investigate the pattern dependency of the 40-Gb/s optical duobinary signals generated by a 10-Gb/s-rated Mach-Zehnder modulator with four different configurations. These configurations correspond to all possible combinations of a 15-GHz-bandwidth low-pass filter and a 0.24-nm bandwidth optical filter used to shape up the duobinary signals. We compare through experiment the back-to-back sensitivities and transmission performances of the duobinary signals for pseudorandom bit sequence lengths of 27-1 and 231-1. The results show that the combination of the 10-Gb/s-rated modulator and the 0.24-nm optical filter exhibits the best performance in terms of both the receiver sensitivity and pattern dependency owing to the good frequency response of the optical filter.

Original languageEnglish
Pages (from-to)2768-2773
Number of pages6
JournalOptics Communications
Volume281
Issue number10
DOIs
Publication statusPublished - 2008 May 15

Fingerprint

Optical filters
optical filters
transmitters
Modulators
modulators
bandwidth
Bandwidth
low pass filters
Low pass filters
configurations
frequency response
Mach number
Frequency response
optical communication
receivers
sensitivity
Optical transmitters
Experiments

Keywords

  • Lithium niobate (LiNbO) modulator
  • Optical communication
  • Optical duobinary
  • Optical modulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Pattern dependency comparison of four different 40-Gb/s optical duobinary transmitters using low-bandwidth modulators. / Lee, Hanlim; Kim, Hoon; Hwang, Seongtaek; Oh, Yunje; Lee, Jae Hoon; Jeong, Jichai.

In: Optics Communications, Vol. 281, No. 10, 15.05.2008, p. 2768-2773.

Research output: Contribution to journalArticle

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