High-Resolution Strain and Temperature Sensor Based on Distributed Bragg Reflector Fiber Laser

Author

Shao, Li-Yang ; Dong, Xinyong ; Zhang, A. Ping ; Tam, Hwa-Yaw ; He, Sailing

Author_Institution

Hong Kong Polytech. Univ., Kowloon

Volume

19

Issue

20

fYear

2007

Firstpage

1598

Lastpage

1600

Abstract

We present a high-resolution strain and temperature sensor by using a polarimetric distributed Bragg reflector fiber laser. The mean wavelength and polarization beat frequency of the laser output are utilized to determine the strain and temperature of the sensor. Experimental results show that the sensor has a capability of sensing strain and temperature simultaneously, with root mean square deviations of 9.3 mu epsiv and 0.05degC, respectively.

Keywords

Bragg gratings; distributed Bragg reflector lasers; fibre lasers; fibre optic sensors; polarimetry; strain measurement; strain sensors; temperature measurement; temperature sensors; FBG; fiber Bragg grating; fiber-optic sensor; high-resolution strain sensor; polarimetric distributed Bragg reflector fiber laser; polarization beat frequency; root mean square deviations; temperature sensor; Bragg gratings; Capacitive sensors; Distributed Bragg reflectors; Fiber gratings; Fiber lasers; Laser modes; Optical fiber polarization; Optical fiber sensors; Pump lasers; Temperature sensors; Fiber Bragg grating (FBG); fiber laser; fiber-optic sensor; strain sensor; temperature sensor;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.903535

Filename

4305233