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Proceedings Paper

250 kHz sampling rate FBG interrogator with strong anti-aliasing signal processing
Author(s): Jonas Bentell; Dirk Uwaerts; Jonathan Cloots; Thomas Bocquet; Joel Neys; Johan Vlekken; Bob Boons; Jan Van Roosbroeck; Pin Hong
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Paper Abstract

In this paper, we outline the functionality of a new Fiber Bragg Grating (FBG) interrogator that has been developed based on requirements from the Flight Test Group of a major European aircraft manufacturer and give some performance figures regarding the dynamic measurement capabilities of the system. The interrogator is designed for sensing the wavelength of short apodized gratings at high sampling rates and with strict requirements on the signal quality in the frequency domain. In particular, the specifications on aliasing and phase distortion will be discussed, and an explanation on how the system can and does meet these specs over different sampling frequencies is given.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75034S (5 October 2009); doi: 10.1117/12.833689
Show Author Affiliations
Jonas Bentell, XenICs NV (Belgium)
Dirk Uwaerts, XenICs NV (Belgium)
Jonathan Cloots, XenICs NV (Belgium)
Thomas Bocquet, XenICs NV (Belgium)
Joel Neys, XenICs NV (Belgium)
Johan Vlekken, Fibre Optic Sensors and Sensing Systems (Belgium)
Bob Boons, Fibre Optic Sensors and Sensing Systems (Belgium)
Jan Van Roosbroeck, Fibre Optic Sensors and Sensing Systems (Belgium)
Pin Hong, Tredek Inc (United States)


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

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