Tilted fiber Bragg grating-based accelerometer

Tuan Guo; Liyang Shao; Hoyin Au; Hwa Yaw Tam; Jacques Albert

doi:10.1117/12.834936

Tilted fiber Bragg grating-based accelerometer

Tuan Guo, Liyang Shao, Hoyin Au, Hwa Yaw Tam, Jacques Albert

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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.

Original language	English
Title of host publication	20th International Conference on Optical Fibre Sensors
Volume	7503
DOIs	https://doi.org/10.1117/12.834936
Publication status	Published - 17 Nov 2009
Event	20th International Conference on Optical Fibre Sensors - Edinburgh, United Kingdom Duration: 5 Oct 2009 → 9 Oct 2009

Conference

Conference	20th International Conference on Optical Fibre Sensors
Country/Territory	United Kingdom
City	Edinburgh
Period	5/10/09 → 9/10/09

Keywords

Accelerometer
Tilted fiber Bragg gratings
Vibration

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.834936

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title = "Tilted fiber Bragg grating-based accelerometer",

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.",

keywords = "Accelerometer, Tilted fiber Bragg gratings, Vibration",

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day = "17",

doi = "10.1117/12.834936",

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T1 - Tilted fiber Bragg grating-based accelerometer

AU - Guo, Tuan

AU - Shao, Liyang

AU - Au, Hoyin

AU - Tam, Hwa Yaw

AU - Albert, Jacques

PY - 2009/11/17

Y1 - 2009/11/17

N2 - 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.

AB - 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.

KW - Accelerometer

KW - Tilted fiber Bragg gratings

KW - Vibration

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U2 - 10.1117/12.834936

DO - 10.1117/12.834936

M3 - Conference article published in proceeding or book

SN - 9780819478146

VL - 7503

BT - 20th International Conference on Optical Fibre Sensors

T2 - 20th International Conference on Optical Fibre Sensors

Y2 - 5 October 2009 through 9 October 2009

ER -

Tilted fiber Bragg grating-based accelerometer

Abstract

Conference

Keywords

ASJC Scopus subject areas

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