Highly nonlinear chalcogenide fibres for all-optical signal processing

Libin Fu*, Vahid G. Ta'Eed, Eric C. Mägi, Ian C M Littler, Mark D. Pelusi, Michael R E Lamont, Alexander Fuerbach, Hong C. Nguyen, Dong Il Yeom, Benjamin J. Eggleton

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


Chalcogenide glasses offer many attractive properties for all-optical signal processing including large Kerr nonlinearity (up to 500 × silica glass), an intrinsic ultrafast response time and low to moderate two-photon absorption (TPA). These properties together with the convenience of a fibre format allow us to achieve all-optical signal processing at low peak power and in a very compact form. In this paper, several nonlinear processing functions will be demonstrated including: femto-second pedestal free, pulse compression; all-optic wavelength conversion; and all-optical regenerator. In addition, we show enhanced nonlinearity for more efficient signal processing by tapering the As 2Se 3 fibre. These applications show chalcogenide glass fibres are very promising candidate materials for nonlinear all-optic signal processing.

Original languageEnglish
Pages (from-to)1115-1131
Number of pages17
JournalOptical and Quantum Electronics
Issue number12-13
Publication statusPublished - Oct 2007


  • All-optical signal processing
  • Nonlinear glassmaterial
  • Self-phase modulation


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