Demonstration of CoWDM using DPSK modulator array with injection-locked lasers

Selwan K. Ibrahim, Andrew D. Ellis, Fatima C. Garcia Gunning, F.H. Peters

Research output: Contribution to journalArticle

Abstract

A practical implementation of coherent wavelength division multiplexing (CoWDM) is demonstrated for the first time using injection-locked lasers and a DPSK modulator array. For a 31.99 Gbit/s system (three subcarriers at 10.664 Gbit/s) the null-to-null spectral bandwidth was only 42.656 GHz and the average receiver sensitivity measured was -33.5 dBm when all subcarrier phases were optimised.
Original languageEnglish
Pages (from-to)150-152
Number of pages3
JournalElectronics letters
Volume46
Issue number2
DOIs
Publication statusPublished - 21 Jan 2010

Bibliographical note

This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

Keywords

  • optical communication equipment
  • optical modulation
  • wavelength division multiplexing
  • optical arrays
  • differential phase shift keying
  • high-speed optical techniques
  • laser mode locking
  • distributed feedback lasers

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