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Enhanced Sensitivity of FBG Pressure Sensor Using Thin Metal Diaphragm

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Abstract

High sensitive pressure sensor based on fiber Bragg grating (FBG) assembled with thin metal diaphragm is reported. The sensitivity of the pressure sensor is found to be 2.05 × 10−2 MPa-1, approximately 10,350 times higher than that measured with the bare FBG.

© 2012 Optical Society of America

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