Fibre optic broadband interferometry for absolute distance measurements through optically dense media

Peter B. Harrison; Robert R. J. Maier; J. S. Barton; Julian D. C. Jones; Scott McCulloch; Gary Burnell

doi:10.1117/12.623395

23 May 2005 Fibre optic broadband interferometry for absolute distance measurements through optically dense media

Peter B. Harrison, Robert R. J. Maier, J. S. Barton, Julian D. C. Jones, Scott McCulloch, Gary Burnell

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623395
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

In this paper we describe absolute distance measurement through an optically dense transparent polymer, using a fibrebased, broadband interrogated, Fabry-Perot interferometer. The dual fibre sensor demonstrates a system that provides 'on-line' compensation for temperature and stress effects through recovery of refractive index information. Over a typical sensing range of 1mm distance measurements with sub-micron accuracy are reported.

Citation Download Citation

Peter B. Harrison, Robert R. J. Maier, J. S. Barton, Julian D. C. Jones, Scott McCulloch, and Gary Burnell "Fibre optic broadband interferometry for absolute distance measurements through optically dense media", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623395

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