Wavelength conversion of high-order QAM signals for future transparent all-optical networks

Guo Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

With the recent trend of employing spectrally efficient multi-level modulation formats in optical communication systems, it is highly desirable to exploit the all-optical wavelength conversion (AOWC) schemes for formats, such as 16- or 64- quadrature amplitude modulation (QAM) signals. Since the linear and nonlinear phase noise is transferred with the data to the converted wavelength in AOWC subsystem, it is imperative to optimize the operation condition in AOWC to suppress noise to allow compatibility phase-noise sensitive high-order QAM formats. We first investigate the performance optimization of AOWC for high-order QAMs like 64QAM through four-wave mixing in highly nonlinear fiber, and then discuss our proposed AOWCs schemes for high-order QAM signals such as 16/64-QAM using coherent pumps which is free of phase noise from pumps.

Original languageEnglish
Title of host publication2014 13th International Conference on Optical Communications and Networks, ICOCN 2014
EditorsGangxiang Shen
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479972180
DOIs
Publication statusPublished - 2014 Dec 15
Externally publishedYes
Event2014 13th International Conference on Optical Communications and Networks, ICOCN 2014 - Suzhou, China
Duration: 2014 Nov 92014 Nov 10

Publication series

Name2014 13th International Conference on Optical Communications and Networks, ICOCN 2014

Other

Other2014 13th International Conference on Optical Communications and Networks, ICOCN 2014
CountryChina
CitySuzhou
Period14/11/914/11/10

Keywords

  • Quadrature amplitude modulation (QAM)
  • four-wave mixing (FWM)
  • optical signal processing
  • phase noise
  • wavelength conversion

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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  • Cite this

    Lu, G. W., Sakamoto, T., & Kawanishi, T. (2014). Wavelength conversion of high-order QAM signals for future transparent all-optical networks. In G. Shen (Ed.), 2014 13th International Conference on Optical Communications and Networks, ICOCN 2014 [6987061] (2014 13th International Conference on Optical Communications and Networks, ICOCN 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICOCN.2014.6987061