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

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5 Author(s)
Li-Yang Shao ; Hong Kong Polytech. Univ., Kowloon ; Xinyong Dong ; A. Ping Zhang ; Hwa-Yaw Tam
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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.

Published in:

IEEE Photonics Technology Letters  (Volume:19 ,  Issue: 20 )