Fiber laser sensor for simultaneously axial strain and transverse load detection

Kuanglu Yu; Chongqing Wu; Mingxuan Sun; Chao Lu; Hwa Yaw Tam; Yao Zhao; Liyang Shao

doi:10.1016/j.measurement.2014.11.017

Fiber laser sensor for simultaneously axial strain and transverse load detection

Kuanglu Yu, Chongqing Wu, Mingxuan Sun, Chao Lu, Hwa Yaw Tam, Yao Zhao, Liyang Shao

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

10 Citations (Scopus)

Abstract

We demonstrate a distributed Bragg reflector (DBR) fiber laser sensor for simultaneous measurements of axial strain and transverse load, this sensor might be applied in structure health monitoring. In this scheme, transverse load introduces an additional birefringence and consequently a linear beat note frequency change of the orthogonally polarized lasing modes, while the axial strain can be simply deduced from the wavelength shift of the laser. The sensor's sensitivity is measured to be 1.33 kHz/mg and 1.266 pm/με for lateral load and axial strain respectively.

Original language	English
Pages (from-to)	137-141
Number of pages	5
Journal	Measurement: Journal of the International Measurement Confederation
Volume	62
DOIs	https://doi.org/10.1016/j.measurement.2014.11.017
Publication status	Published - 1 Jan 2015

Keywords

Axial strain
Distributed Bragg reflector fiber laser
Fiber optics sensors
Strain sensor
Transverse load

ASJC Scopus subject areas

Instrumentation
Electrical and Electronic Engineering

More information

10.1016/j.measurement.2014.11.017

Cite this

@article{9e8859daccc34af6bbd486e1b84182e5,

title = "Fiber laser sensor for simultaneously axial strain and transverse load detection",

abstract = "We demonstrate a distributed Bragg reflector (DBR) fiber laser sensor for simultaneous measurements of axial strain and transverse load, this sensor might be applied in structure health monitoring. In this scheme, transverse load introduces an additional birefringence and consequently a linear beat note frequency change of the orthogonally polarized lasing modes, while the axial strain can be simply deduced from the wavelength shift of the laser. The sensor's sensitivity is measured to be 1.33 kHz/mg and 1.266 pm/με for lateral load and axial strain respectively.",

keywords = "Axial strain, Distributed Bragg reflector fiber laser, Fiber optics sensors, Strain sensor, Transverse load",

author = "Kuanglu Yu and Chongqing Wu and Mingxuan Sun and Chao Lu and Tam, {Hwa Yaw} and Yao Zhao and Liyang Shao",

year = "2015",

month = jan,

day = "1",

doi = "10.1016/j.measurement.2014.11.017",

language = "English",

volume = "62",

pages = "137--141",

journal = "Measurement: Journal of the International Measurement Confederation",

issn = "0263-2241",

publisher = "Elsevier",

}

TY - JOUR

T1 - Fiber laser sensor for simultaneously axial strain and transverse load detection

AU - Yu, Kuanglu

AU - Wu, Chongqing

AU - Sun, Mingxuan

AU - Lu, Chao

AU - Tam, Hwa Yaw

AU - Zhao, Yao

AU - Shao, Liyang

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We demonstrate a distributed Bragg reflector (DBR) fiber laser sensor for simultaneous measurements of axial strain and transverse load, this sensor might be applied in structure health monitoring. In this scheme, transverse load introduces an additional birefringence and consequently a linear beat note frequency change of the orthogonally polarized lasing modes, while the axial strain can be simply deduced from the wavelength shift of the laser. The sensor's sensitivity is measured to be 1.33 kHz/mg and 1.266 pm/με for lateral load and axial strain respectively.

AB - We demonstrate a distributed Bragg reflector (DBR) fiber laser sensor for simultaneous measurements of axial strain and transverse load, this sensor might be applied in structure health monitoring. In this scheme, transverse load introduces an additional birefringence and consequently a linear beat note frequency change of the orthogonally polarized lasing modes, while the axial strain can be simply deduced from the wavelength shift of the laser. The sensor's sensitivity is measured to be 1.33 kHz/mg and 1.266 pm/με for lateral load and axial strain respectively.

KW - Axial strain

KW - Distributed Bragg reflector fiber laser

KW - Fiber optics sensors

KW - Strain sensor

KW - Transverse load

UR - http://www.scopus.com/inward/record.url?scp=84917692925&partnerID=8YFLogxK

U2 - 10.1016/j.measurement.2014.11.017

DO - 10.1016/j.measurement.2014.11.017

M3 - Journal article

SN - 0263-2241

VL - 62

SP - 137

EP - 141

JO - Measurement: Journal of the International Measurement Confederation

JF - Measurement: Journal of the International Measurement Confederation

ER -

Fiber laser sensor for simultaneously axial strain and transverse load detection

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this