Novel interrogation system for fiber Bragg grating sensor array

Talabuttala Srinivas; T Madan; V Saravana Kumar; T Kiran Kumar; Ananth Selvarajan

doi:10.1117/12.473926

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17 February 2003 Novel interrogation system for fiber Bragg grating sensor array

Talabuttala Srinivas, T Madan, V Saravana Kumar, T Kiran Kumar, Ananth Selvarajan

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Proceedings Volume 4833, Applications of Photonic Technology 5; (2003) https://doi.org/10.1117/12.473926
Event: Applications of Photonic Technology 5, 2002, Quebec City, Canada

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.

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Talabuttala Srinivas, T Madan, V Saravana Kumar, T Kiran Kumar, and Ananth Selvarajan "Novel interrogation system for fiber Bragg grating sensor array", Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); https://doi.org/10.1117/12.473926

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