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RLS Filter-Based Interrogation of Fiber-Optic Extrinsic Fabry-Perot Interferometry Sensors

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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.

© 2014 Optical Society of America

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