Requirement of modulation bandwidth for 100Gb/s optical DQPSK transmission using one dual-drive Mach Zehnder modulator

Dawei Liu*, Liangxing Wang, Yi Dong, Han Chen, Hao He, Weisheng Hu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

This paper demonstrates bandwidth requirement for optical DPQSK transmitter using one Dual-drive Mach Zehnder Modulator (DDMZM) for 100Gb/s physical transmission. The result shows that at receiver bandwidth of 40GHz, NRZ-DQPSK signal requires 60GHz modulation bandwidth at least, while RZ-DQPSK scheme demands less bandwidth, about 40GHz for 50% duty cycle RZ-DQPSK signal.

Original languageEnglish
Article number71361M
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume7136
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventOptical Transmission, Switching, and Subsystems VI - Hangzhou, China
Duration: 27 Oct 200830 Oct 2008

Keywords

  • Differential quadrature phase-shift keying (DQPSK)
  • Dual-drive Mach Zehnder modulator (DDMZM)
  • Modulation bandwidth

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