Demonstration of the Optical Kerr Effect in an All-Fibre Mach-Zehnder Interferometer at Laser Diode Powers

I. H. White, R. V. Penty, R. E. Epworth

Research output: Contribution to journalArticle


The nonlinear Kerr coefficient of a germania core optical fibre has been determined by measuring the phase shift induced by a laser diode pump on a HeNe probe in an all-fibre Mach-Zehnder interferometer. It has been demonstrated that this device may be operated as an optical tap. A predicted power-length product for 100% modulation of 11 Wm has been obtained.

Original languageEnglish
Pages (from-to)340-341
Number of pages2
JournalElectronics Letters
Issue number6
Publication statusPublished - 17 Mar 1988


  • Optical fibres
  • Optical properties of substances
  • Optical waveguide components

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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