Journal
OPTICS COMMUNICATIONS
Volume 273, Issue 2, Pages 398-401Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2007.01.040
Keywords
fiber sensor; fiber Bragg grating (FBG)
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The study on fiber Bragg grating (FBG) displacement sensor based on monitoring the back-reflected power from an array of novelly embedded FBG sensors is presented. The sensor is a uniform FBG with three sections that are embedded in different layer in a composite lamina. Its bandwidth is displacement dependent and hence its reflected power varies almost linearly with displacement and it is insensitive to temperature variation. Thus, only low-cost photodetector (PD) is required to monitor displacement. This study demonstrates a novel fiber sensor, a method of fabricated the same, and a method to achieve simultaneous multi-sensor measurement. (c) 2007 Elsevier B.V. All rights reserved.
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