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Proceedings Paper

Fiber Bragg grating interrogation using a micro-ring resonator tunable filter with peak wavelength detection enhancement
Author(s): German Vargas
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Paper Abstract

This work presents a demodulation technique using a silicon micro-ring resonator that extracts wavelength information from a FBG sensor. The device implements an interrogation system employing a signal processing technique that translates the peak wavelength position of a FBG spectral line into a time interval measurement. To determine the peaks, three techniques were applied. One was based on a simple maximum detection algorithm, the other two, enhanced the detected signal by applying a finite impulse filter (FIR) and a smoothing filter. Results show an improvement of the wavelength measurement using the filtering technique compared to the maximum peak detection.

Paper Details

Date Published: 13 May 2015
PDF: 8 pages
Proc. SPIE 9480, Fiber Optic Sensors and Applications XII, 94800P (13 May 2015); doi: 10.1117/12.2179044
Show Author Affiliations
German Vargas, Escuela Superior Politécnica del Litoral (Ecuador)

Published in SPIE Proceedings Vol. 9480:
Fiber Optic Sensors and Applications XII
Gary Pickrell; Eric Udd; Henry H. Du, Editor(s)

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