Uncooled DWDM using orthogonal coding for low-cost datacommunication applications

Johannes Benedikt Von Lindeiner, Jonathan D. Ingham, Adrian Wonfor, Jiannan Zhu, Richard V. Penty, Ian H. White

Research output: Contribution to journalArticlepeer-review


We describe a novel dense wavelength-division multiplexed systems (DWDM) system where by introducing orthogonality between adjacent channels and by using overlapping arrayed waveguide grating filter profiles, laser transmitters may operate without the need for thermoelecric cooling. Compared with a traditional DWDM system, a power consumption saving of up to 68% may be realized using this scheme. Results of a proof-of-principle 100 Gb/s (10 × 10 Gb/s) experiments that use alternating NRZ and Manchester (CAP-2Q) modulation is reported.

Original languageEnglish
Article number7024915
Pages (from-to)700-709
Number of pages10
JournalJournal of Lightwave Technology
Issue number3
Early online date28 Jan 2015
Publication statusPublished - 1 Feb 2015


  • Energy Consumption
  • Modulation Coding
  • Temperature Control
  • Wavelength division multiplexing

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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