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Record nonlinearity in optical fibre

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4 Author(s)
Zhang, W.Q. ; Centre of Expertise in Photonics, Univ. of Adelaide, Adelaide, SA ; Afshar, V.S. ; Ebendorff-Heidepriem, H. ; Monro, T.M.

A record effective fibre nonlinearity of 5400 W-1 km-1 at 1550 nm has been measured in a non-tapered bismuth microstructured optical fibre. This extremely high nonlinearity has been achieved by fabricating a fibre with a suspended-nanowire structure with a core diameter of only 530 nm. The nonlinear phase shift is measured using the dual-frequency self-phase modulation method. This result demonstrates the potential of this emerging class of fibres for use in compact nonlinear devices.

Published in:

Electronics Letters  (Volume:44 ,  Issue: 25 )