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Performance analysis of a fiber Bragg grating filter-based strain/temperature sensing system based on a modified Gaussian function approximation method |
Applied Optics, Vol. 50, Issue 27, pp. 5243-5255 (2011)
http://dx.doi.org/10.1364/AO.50.005243
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Abstract
This paper analyzes the performance of a fiber Bragg grating (FBG) filter-based strain and/or temperature sensing system based on a modified Gaussian function (MGF) approximation method. Instead of using a conventional Gaussian function, we propose the MGF, which can capture the characteristics of the sidelobes of the reflected spectrum, to model the FBG sensor and filter. We experimentally demonstrate that, by considering the contributions of the sidelobes with the MGF approximation method, behaviors of the FBG filter-based FBG displacement and/or temperature sensing system can be predicted more accurately. The predicted behaviors include the saturation, the sensitivity, the sensing range, and the optimal initial Bragg wavelengths of the FBG sensing system.
© 2011 Optical Society of America
OCIS Codes
(120.6780) Instrumentation, measurement, and metrology : Temperature
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis
(130.6010) Integrated optics : Sensors
(060.3738) Fiber optics and optical communications : Fiber Bragg gratings, photosensitivity
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: March 9, 2011
Revised Manuscript: July 26, 2011
Manuscript Accepted: July 26, 2011
Published: September 14, 2011
Citation
Kuo-Chih Chuang, Chien-Ching Ma, and Chao-Hsiang Wang, "Performance analysis of a fiber Bragg grating filter-based strain/temperature sensing system based on a modified Gaussian function approximation method," Appl. Opt. 50, 5243-5255 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-27-5243
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