Title: Automated multichannel broadband spectrum analysis of fibre-optic grating sensors

Authors: Plamen Balzhiev; Wojtek J. Bock; Tinko Eftimov; Rumen Arnaudov

Addresses: Department of Radio Communications and Video Technologies, Faculty of Telecommunications, Technical University of Sofia, 8 Kliment Ohridski Blvd., Sofia 1000, Bulgaria ' Canada Research Chair in Photonics, Université du Québec en Outaouais, 101 Rue St Jean Bosco, Gatineau, Québec J8X 3X7, Canada ' Department of Experimental Physics, Faculty of Physics, Plovdiv University, 24 Tsar Assen Str., Plovdiv 4000, Bulgaria ' Department of Radio Communications and Video Technologies, Faculty of Telecommunications, Technical University of Sofia, 8 Kliment Ohridski Blvd., Sofia 1000, Bulgaria

Abstract: In this paper, we report methods for spectrum analysis and data processing algorithms. An automated multi-channel spectrum measurement system is introduced with controlled fibre-optic signal switching and spectrum analysis with linear CCD photodiode array, diffraction grating and precise stepper motor. The designed system demands advanced measurement and data processing techniques. This paper reports the implemented methods for automated multi-channel measurements, accuracy improvement, noise cancellation techniques and fibre-optic grating sensor measurements.

Keywords: long-period grating sensors; fibre optic sensors; intelligent spectrum analysis; multichannel measurement; spectrum interrogation; linear CCD spectrometry; photodiode arrays; diffraction grating; stepper motors; data processing; noise cancellation.

DOI: 10.1504/IJRIS.2013.058185

International Journal of Reasoning-based Intelligent Systems, 2013 Vol.5 No.3, pp.154 - 160

Published online: 09 Dec 2013 *

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