Performance of optical DPSK and DQPSK in 40G bit/s transmission systems

Jie Gao*, Jianmin Cui, Lihui Feng, Fang Cui, Yunan Sun

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have simulated the OSNR sensitivity, filtering tolerance, chromatic dispersion tolerance, and nonlinear tolerance of optical DPSK and DQPSK formats with and without RZ carving in 40Gbit/s transmission systems. The results show that RZ-DPSK has the highest OSNR sensitivity, and is most robust against fiber nonlinearity in dispersion compensated systems with moderate channel spacing. The DQPSK systems have the highest filtering tolerance and dispersion tolerance, and is least affected by the reduction of the channel spacing. The simulations of long haul dispersion compensated systems show that RZ-DPSK has better performance in single channel system and WDM system with 100GHz channel spacing, while RZ-DQPSK has better performance in WDM system with 50GHz channel spacing.

Original languageEnglish
Title of host publicationInformation Optics and Photonics Technologies II
DOIs
Publication statusPublished - 2008
EventInformation Optics and Photonics Technologies II - Beijing, China
Duration: 12 Nov 200713 Nov 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6837
ISSN (Print)0277-786X

Conference

ConferenceInformation Optics and Photonics Technologies II
Country/TerritoryChina
CityBeijing
Period12/11/0713/11/07

Keywords

  • Chromatic dispersion
  • DPSK
  • DQPSK
  • Nonlinearity

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Gao, J., Cui, J., Feng, L., Cui, F., & Sun, Y. (2008). Performance of optical DPSK and DQPSK in 40G bit/s transmission systems. In Information Optics and Photonics Technologies II Article 68371C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6837). https://doi.org/10.1117/12.757474