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Proceedings Paper

Novel interrogation system for fiber Bragg grating sensor array
Author(s): Talabuttala Srinivas; T Madan; V Saravana Kumar; T Kiran Kumar; Ananth Selvarajan
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Paper 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.

Paper Details

Date Published: 17 February 2003
PDF: 7 pages
Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); doi: 10.1117/12.473926
Show Author Affiliations
Talabuttala Srinivas, Indian Institute of Science (India)
T Madan, Indian Institute of Science (India)
V Saravana Kumar, Indian Institute of Science (India)
T Kiran Kumar, Indian Institute of Science (India)
Ananth Selvarajan, Indian Institute of Science (India)

Published in SPIE Proceedings Vol. 4833:
Applications of Photonic Technology 5
Roger A. Lessard; George A. Lampropoulos; Gregory W. Schinn, Editor(s)

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