Effects of filter bandwidth and driving voltage on optical duobinary transmission systems

Yu Chang Lu, Chia Chien Wei*, Jye-Hong Chen, Kai Ming Feng, Pao Chi Yeh, Tzu Yen Huang, Ching Cheng Chang, Cheng Tsao, Sien Chi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This work demonstrates how electrical driving voltage of a Mach-Zehnder modulator and the bandwidth of electrical low-pass filters (LPFs) affect optical duobinary signals. The fact that a 100% driving voltage does not necessarily yield optimal results in duobinary systems is established both numerically and experimentally. Various filter bandwidths correspond to respective optimum driving voltages. In a 10 Gbps duobinary system, compared with the conventional condition of using a 2.5 GHz electrical LPF, a 2.5 dB sensitivity improvement is obtained by employing a 3 GHz LPF with an 88% driving voltage of fully driving.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalOptical Fiber Technology
Volume13
Issue number3
DOIs
StatePublished - 1 Jan 2007

Keywords

  • Duobinary
  • Modulation format
  • Optical communication

Fingerprint

Dive into the research topics of 'Effects of filter bandwidth and driving voltage on optical duobinary transmission systems'. Together they form a unique fingerprint.

Cite this