Self-compensated high-speed FBG interrogation using closed-loop tracking system

Lothar U. Kempen; Edgar A. Mendoza; Indu F. Saxena

doi:10.1117/12.753550

2 October 2007 Self-compensated high-speed FBG interrogation using closed-loop tracking system

Lothar U. Kempen, Edgar A. Mendoza, Indu F. Saxena

Proceedings Volume 6758, Photonics in the Transportation Industry: Auto to Aerospace; 67580E (2007) https://doi.org/10.1117/12.753550
Event: Optics East, 2007, Boston, MA, United States

Abstract

A system for interrogation of high-frequency events with an FBG array in the presence of large quasi-static fluctuations has been developed at Intelligent Optical Systems (IOS). The system allows highly sensitive detection of periodic or transient events up to the MHz range while automatically compensating for slow changes in the FBG center frequency using a closed loop tracking system. Both the high frequency signal and the low frequency parts of the sensor spectrum are available for further processing. The system components, setup, and applications are presented and discussed.

Citation Download Citation

Lothar U. Kempen, Edgar A. Mendoza, and Indu F. Saxena "Self-compensated high-speed FBG interrogation using closed-loop tracking system", Proc. SPIE 6758, Photonics in the Transportation Industry: Auto to Aerospace, 67580E (2 October 2007); https://doi.org/10.1117/12.753550

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