Accurate Loop Length Determination in Fibre-Optic Sensors and Signal Processors

M. Tur, B. Y. Kim, J. L. Brooks, H. J. Shaw

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10 Scopus citations


A technique is demonstrated for the accurate determination of differential propagation delays in fibre-optic circuits commonly found in sensing and signal processing arrays, utilising the high-order frequency filtering characteristics of these circuits. Relative time delays for two interferometers can be easily compared to within less than 10 ppm.

Original languageEnglish
Pages (from-to)778-780
Number of pages3
JournalElectronics Letters
Issue number15
StatePublished - 1986


  • Fibre optics
  • Optical sensors. Optical processing
  • Optics

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