A novel interrogation system for fiber Bragg grating sensor array

Goyal, M and Kumar, A and Sharma, V (2002) A novel interrogation system for fiber Bragg grating sensor array. In: 5th International Conference on Applications of Photonic Technology(ICAPT 2002), JUN 01-06, 2002, Quebec city, Canada.

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Abstract

Interrogation techniques for fiber Bragg grating sensor arrays need particular attention in the case of structural health monitoring applications involving dynamic strain measurement. Typically the performance of the sensing system is dependent on both the sensor type and the interrogation method employed. A novel interrogation system is proposed here that consists of different interrogation units for each sensor in the array, each unit comprising of a circulator, chirped grating and a Mach-Zehnder interferometer. We present an analysis that consists of tracking the spectral changes as the light passes through various elements in the interrogation system. This is expected to help in the optimization of sensor and interrogation elements leading to improved performance of the health monitoring system.

Item Type:	Conference Paper
Publisher:	Spie-Int Society Optical Engineering
Additional Information:	Copyright of this article belongs to Spie-Int Society Optical Engineering.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	16 Mar 2012 12:10
Last Modified:	16 Mar 2012 12:10
URI:	http://eprints.iisc.ac.in/id/eprint/43969

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