Highly efficient multichannel wavelength conversion of DPSK signals

Preetpaul Devgan*, Renyong Tang, Vladimir S. Grigoryan, Prem Kumar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations


This paper demonstrates a multichannel wavelength conversion of differential phase-shift-keyed (DPSK) signals using four-wave mixing in a highly nonlinear fiber. The wavelengths of three 10-Gb/s nonreturn-to-zero (NRZ) DPSK channels are simultaneously converted without incurring the cross-gain modulation penalty usually associated with ON-OFF-keyed signals. A maximum conversion efficiency of 85% was achieved for both NRZ and return-to-zero DPSK signals.

Original languageEnglish (US)
Pages (from-to)3677-3682
Number of pages6
JournalJournal of Lightwave Technology
Issue number10
StatePublished - Oct 2006


  • Differential phase-shift keying (DPSK)
  • Multichannel
  • Wavelength conversion

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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