Application of &#960;-shifted short scan interferometry to remote sensing

Ronan O'Byrne; Sergey V. Sergeyev

doi:10.1117/12.835408

5 October 2009 Application of π-shifted short scan interferometry to remote sensing

Ronan O'Byrne, Sergey V. Sergeyev

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75036R (2009) https://doi.org/10.1117/12.835408
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

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.

Citation Download Citation

Ronan O'Byrne and Sergey V. Sergeyev "Application of π-shifted short scan interferometry to remote sensing", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75036R (5 October 2009); https://doi.org/10.1117/12.835408

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