Temperature-insensitive strain measurement by broad-band interferometry

D. G. Luke, R. McBride, D. A. Flavin, J. G. Burnett, J. D C Jones

Research output: Contribution to journalArticlepeer-review


We report a technique for temperature-insensitive strain measurement by broad-band interferometry. Changes in group delay and dispersion in a Mach-Zehnder interferometer are measured by dispersive Fourier transform spectroscopy (DFTS). These measurements give values for strain and temperature via a well-conditioned matrix transformation, so that strain measurements are independent of temperature change. The technique can be used for remote interrogation of sensors by tandem interferometry.

Original languageEnglish
Pages (from-to)3/1-3/6
JournalIEE Colloquium (Digest)
Issue number87
Publication statusPublished - 1995
EventIEE Electronics Division Colloquium on Optical Techniques for Structural Monitoring - London, UK
Duration: 28 Apr 199528 Apr 1995


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