Title :
RLS filter-based interrogation of fiber-optic extrinsic Fabry-Perot interferometry sensors
Author :
Tosi, Daniele ; Poeggel, Sven ; Leen, Gabriel ; Lewis, Elfed
Author_Institution :
Opt. Fibre Sensors Res. Centre, Univ. of Limerick, Limerick, Ireland
Abstract :
A technique for interrogation of fiber-optic extrinsic Fabry-Perot interferometry sensors, based on adaptive filtering, is reported. This approach achieves 9.6 pm accuracy on Fabry-Perot cavity length (equivalent to 0.045 mmHg pressure) and improved noise resilience.
Keywords :
Fabry-Perot interferometers; adaptive filters; fibre optic sensors; least squares approximations; optical fibre testing; optical filters; optical noise; pressure sensors; recursive filters; Fabry-Perot cavity length; RLS filter-based interrogation; adaptive filtering; fiber-optic extrinsic Fabry-Perot interferometry sensors; improved noise resilience; pressure 0.045 mm Hg; Accuracy; Adaptive filters; Fabry-Perot; Optical fiber filters; Optical fiber sensors; Signal to noise ratio;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
