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Proceedings Paper

Application of π-shifted short scan interferometry to remote sensing
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Paper Abstract

We report on the use of π-shifted interferometry to extend the distances over which signals from Fibre Bragg gratings, FBGs, can be effectively demodulated. The Hilbert transform technique is successfully applied to demodulate differential π-shifted interferograms recovered after transmission over a 20km span of fibre. However, this technique applied in standard way does not overcome the signal-to-noise-ratio/degradation due to Rayleigh scattering over the 20 km.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036R (5 October 2009); doi: 10.1117/12.835408
Show Author Affiliations
Ronan O'Byrne, Waterford Institute of Technology (Ireland)
Sergey V. Sergeyev, Waterford Institute of Technology (Ireland)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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