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Proceedings Paper

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

Paper Details

Date Published: 2 October 2007
PDF: 5 pages
Proc. SPIE 6758, Photonics in the Transportation Industry: Auto to Aerospace, 67580E (2 October 2007); doi: 10.1117/12.753550
Show Author Affiliations
Lothar U. Kempen, Intelligent Optical Systems, Inc. (United States)
Edgar A. Mendoza, Redondo Optics, Inc. (United States)
Indu F. Saxena, Intelligent Optical Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 6758:
Photonics in the Transportation Industry: Auto to Aerospace
Alex A. Kazemi; Christopher S. Baldwin, Editor(s)

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