Determination of equivalent step-index fibres from Petermann spot sizes

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Original languageEnglish
Pages (from-to)1881-1882
Journal / PublicationElectronics Letters
Issue number22
Publication statusPublished - 27 Oct 1994


An experimental equivalent-step-index (ESI) technique for the characterisation of an arbitrary singlemode fibre is proposed, which is based on equalising the Petermann spot sizes of the actual fibre and the ESI fibre. Numerical results for several common profile shapes are presented and discussed. This technique is particularly suitable for predicting the properties of singlemode fibres at 1.55μm that were originally designed to operate at 1.3μm.

Research Area(s)

  • Optical fibres