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Title: Tilted fiber Bragg grating-based accelerometer
Authors: Guo, T
Shao, L
Au, H
Tam, HY 
Albert, J
Keywords: Accelerometer
Tilted fiber Bragg gratings
Issue Date: 2009
Publisher: SPIE-International Society for Optical Engineering
Source: Proceedings of SPIE : the International Society for Optical Engineering, 2009, v. 7503, 750335 How to cite?
Journal: Proceedings of SPIE : the International Society for Optical Engineering 
Abstract: A power-referenced fiber-optic accelerometer is proposed by using a weakly tilted fiber Bragg grating (TFBG) combined with a lateral-misaligned splice structure. The recoupling of lower-order cladding modes (ghost modes), excited by the TFBG, to the fiber core via a slightly lateral-offset slice is sensitive to vibration and can be unambiguously determined by monitoring the power change in reflection, avoiding complex wavelength interrogation. However, the Bragg resonance is virtually unaffected by fiber bending and it can be used as a power reference to cancel out any light source fluctuations. Combining with a polymer tube package, the novel sensing configuration presents a linear and reproducible response for acceleration measurement.
Description: 20th International Conference on Optical Fibre Sensors, Edinburgh, 5-9 October 2009
ISBN: 9780819478146
ISSN: 0277-786X
EISSN: 1996-756X
DOI: 10.1117/12.834936
Appears in Collections:Conference Paper

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