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Proceedings Paper

Interrogation of intensity modulation fiber Bragg grating sensor based on loss-tunable corrugated long period fiber grating filter
Author(s): Chia-Chin Chiang; Min-Yuan Hsieh
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Paper Abstract

Current study utilizes the corrugated long period fiber grating (CLPFG) edge filter and fiber Bragg grating (FBG) strain sensor to configure the high speed strain sensing system by intensity modulation. For static calibration, the FBG wavelength shift is linear with the modulated intensity by CLPFG while the linearity (R2) of the FBG intensity and strain is 0.994. For dynamic strain sensing, the performance of this system is good as the strain gage at 500Hz under the various strain fields. Experimental results also indicate that the optimal sensitivity is 11.08 mV/με.

Paper Details

Date Published: 31 January 2012
PDF: 6 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83511F (31 January 2012); doi: 10.1117/12.914386
Show Author Affiliations
Chia-Chin Chiang, National Kaohsiung Univ. of Applied Sciences (Taiwan)
Min-Yuan Hsieh, National Kaohsiung Univ. of Applied Sciences (Taiwan)


Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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